48results about How to "Relieve drainage pressure" patented technology

The invention relates to a novel compound burn-free water permeable brick and a preparation method thereof. According to the novel compound burn-free water permeable brick, the problems of high preparation cost, low strength, poor water tolerance and the like of an existing water permeable brick are mainly solved. The water permeable brick comprises a surface layer and a bottom layer, wherein the surface layer is prepared from super-hydrophilic fibers through mixing, hot press and maintenance by taking waste ceramic shattered bone as an aggregate as well as sulphate aluminum cement and thermosetting resin as bonding materials, and the bottom layer is prepared by adding materials such as water-repellent powder, water reducing agents, defoaming agents and interface enhancer by taking the waste ceramic shattered bone as the aggregate as well as ordinary Portland cement as a bonding agent. The preparation method of a coating layer comprises the steps of uniformly stirring in a certain proportion so as to obtain a mixture, putting the mixture into a forming mold, and carrying out steam maintenance, so as to prepare the burn-free water permeable brick which has good water permeability and water-retaining property and high strength and is suitable for northeast high and cold areas. Compared with traditional burn-free bricks, the novel compound burn-free water permeable brick has good water permeability and freeze-thaw stability, and a direction is provided for the comprehensive renovation work of environments.

The invention discloses a rainwater penetrating-discharging integrated ecological system, which comprises penetration inspection wells distributed on the ground of residential areas, penetration drainage ditches which are in a network shape and connected on all the penetration inspection wells and transversal connecting pipes between the penetration inspection wells and the penetration drainage ditches. Permeable holes are formed on the side walls and at the bottoms of the penetration inspection wells, a gravel layer is laid in the peripheries of the penetration inspection wells, a layer of permeable geotextile is laid in the peripheries of the gravel layer, wellheads of the penetration inspection wells are provided with dirt-catching and sewage-blocking baskets therein and permeable well covers are covered on the wellheads; permeable holes are formed on the side walls of the penetration drainage ditches, the peripheries of the penetration drainage ditches are provided with the gravel layer, the peripheries of the gravel layers are provided with a layer of permeable geotexile, and the top parts of the penetration drainage ditches are covered with grate covers of the drainage ditches. The invention has the advantages of simple design principle and convenient construction. The invention can save water consumption, reduce rainwater runoff in a city and relieve municipal drainage pressure, thereby not only realizing early draining of rainwater, purifying water, but also realizing the penetration of rainwater, conserving underground water source and beautifying the peripheral ecological environment.

The invention discloses an intelligent road emergency drainage system. The system comprises an inspection well, an inspection well cover, an electric jacking mechanism, a pressure sensor, a voice prompt module, multiple LED indicator lights, a control system, a storage, a GPS module and a GPRS module; on one hand the control system is electrically connected with the pressure sensor and the storage separately, on the other hand the control system is electrically connected with the electric jacking mechanism, the voice prompt module, the multiple LED indicator lights, the GPS module and the GPRS module separately. According to the system, the inspection well cover is opened for drainage when rainfall is too large, so that the drainage pressure of manholes is relieved, the resource utilization is improved, and the economic loss is reduced; vehicles and pedestrians passing by can be reminded to watch out, effective avoidance is carried out, and convenience is brought to management and grasping of real-time conditions for an urban management department, formulation of a response scheme and measures and conducting of subsequent disposition work for a worker.

The invention discloses a rainwater utilization ecological pool, comprising a precipitation well, a leakage well and a water storage well. The rain water utilization ecological pool is characterized in that the precipitation well is connected with outside through a discharge pipe, the precipitation well, the water storage well and the leakage well are sequentially connected through the discharge pipe, building blocks are built in gaps among the precipitation well, the water storage well and the leakage well to surround a cavity, cobbles are arranged on the outer sides of the precipitation well, the water storage well, the leakage well and the building blocks, the upper parts of the precipitation well, the water storage well and the leakage well are provided with rectangular cover plates, a well cover is arranged on each rectangular cover plate, the bottom of the leakage well is connected with underground water through the discharge pipe, and the pipe wall at the lower part of the discharge pipe is provided with permeable holes. The rainwater utilization ecological pool disclosed by the invention has the advantages of simplicity in structure and convenience for construction, the municipal draining pressure can be effectively released, the recovery, leakage and reutilization of rainwater can be realized, and the rainwater utilization ecological pool is beneficial to cultivating an underground water source and beautifying ecological environment.

The invention relates to an unpowered roof rainwater collection and greening irrigation device. The device comprises unpowered rainwater collection components, each unpowered rainwater collection component comprises a large floating ball, a small floating ball and a connecting rod, the large floating ball which is arranged over the small floating ball is connected with the small floating ball through the connecting rod, each unpowered rainwater collection component is arranged in the middle of a rainwater pipe, a water storage tank is connected with the rainwater pipe through a water guide pipe, and the unpowered rainwater collection component is connected with the water storage tank through the water guide pipe. The unpowered roof rainwater collection and greening irrigation device is simple and novel in structure, easy to operate and convenient and flexible to use, and can realize automatic rainwater collection and unpowered irrigation; urban ecological environment can be improved, spatial structure layers of urban landscaping and urban stereo landscape art effect are enriched, city green quantity is further increased beneficially, heat island effect is reduced, and the device has functions of heat insulation, energy conservation, rainwater retention, relief of pressure on urban flood control and water discharge.

The invention relates to an assembly type green belt structure and a construction method thereof. The assembly type green belt structure comprises a rectangular foundation, wherein the length of the transverse side of the foundation corresponds to the width of a green belt; corner columns are arranged at the four corners of the foundation, and edge columns are correspondingly arranged at the opposite sides of the foundation; longitudinal plates are respectively connected between the edge columns as well as between the edge column and the corner column; water guide pipelines are arranged at theupper part, corresponding a pavement position of the road structure, of each longitudinal plate and are used for guiding the water at the pavement into the green belt; water drainage holes are formedin the lower part, corresponding to an underground water drainage system of the road structure, of each longitudinal plate and and are used for draining water; a transverse plate is connected betweenthe adjacent corner columns in the transverse direction, and a transverse separating plate is arranged between the adjacent edge columns in the transverse direction; a hole for water passing is formed in the transverse separating plate; a cover plate is overlapped between the top parts of the longitudinal plates at the opposite sides of the foundation. The assembly type green belt structure solves the technical problem of failure to realize quick dredging and drainage due to short-term strong rainfall and rainstorm in the traditional green belt structure.

The invention relates to a water storage structure capable of improving moisture content in underground soil of urban street trees. The water storage structure comprises water seepage and storage pools and overflowing pipelines; each water penetration and storage pool comprises a pool body upper cover and a composite penetration layer; each pool body upper cover is a container of which the upper end is closed and the lower end is open; overflowing openings are formed on the inner walls of the pool body upper covers; the composite penetration layers are arranged at the openings at the lower ends of the pool body upper covers, and water penetration and storage cavities capable of accommodating rainwater are formed between the composite penetration layers and the pool body upper covers; the overflowing openings of the adjacent water penetration and storage pools are communicated with the overflowing pipelines. The water storage structure has the advantages that the water storage structure has both water penetration and storage functions; rainwater in urban rainwater wells can be collected by the water penetration and storage pools; the rainwater is stored in the water penetration and storage cavities, and slowly penetrates and supplements underground water through the composite penetration layers; penetrating rainwater can be adsorbed by the street trees, and the street tress do not need to be irrigated by municipal water resources. A volume of water for municipal greening and irrigation is reduced.

The invention relates to a drainage system for municipal roads, and belongs to the technical field of municipal road drainage. The drainage system comprises a first drainage outlet, a second drainageoutlet and a drainage ditch, wherein the first drainage outlet is arranged on the edge of a road surface; the second drainage outlet is arranged on the side surface of a sidewalk; the drainage ditch is located below a road; a drainage channel is arranged between the second drainage outlet and the drainage ditch and is connected to the side surface of the drainage ditch; a supporting cover is arranged at the bottom of the drainage ditch below the first drainage outlet, is connected to the bottom of the drainage ditch through an elastic part and can move up and down to open or close a water outlet of the lower end of the drainage channel; the supporting cover comprises a box body with an opening on the lower side surface and a water receiving plate arranged on the upper surface of the box body; and the box body is connected to the water receiving plate through a supporting rod. The drainage system can adjust the drainage amount of the drainage outlets according to the amount of accumulated water on the road, achieves a relatively good drainage effect and reduces the wasting of resources.

The invention relates to a roof water storing device, in particular to a multifunctional ecological type outdoor water storing device. The structural key points are that the multifunctional ecological type outdoor water storing device comprises a rainwater treating house, an outdoor water collecting tank and a root empty space layer, the rainwater treating house is arranged in the middle of the bottom of a pond and embedded into an upper floor slab of the empty space layer, a rainwater filtering net is arranged at the periphery of the rainwater treating house and at the position close to the bottom of the pond, a filtering and sterilizing system, a tap water inlet valve, a waste water ball valve, a waste water pipe and a water supply pipe are arranged in the rainwater treating house, the waste water pipe is connected with a recycled water system of a building to be matched with the waste water ball valve to supplement the outdoor water storing device in the situation without rainwater, the water supply pipe extends out of the rainwater treating house and is connected to floor users, and water supply openings are correspondingly formed in the water supply pipe. The multifunctional ecological type outdoor water storing device has the advantages of collecting rainwater, effectively reducing urban heat island effect, relieving water draining burden of building water draining pipes, preventing a roof from ponding, greatly reducing burden to an urban water draining system, effectively utilizing one part of rainwater and facilitating the environment and ecology.

The invention discloses a double-layer regulation and storage tank for regulation and storage for flood peak and regulation and storage for initial rainwater. The double-layer regulation and storage tank comprises a double-layer regulation and storage tank body, wherein a grid is arranged at the upstream of the double-layer regulation and storage tank body; the downstream of the double-layer regulation and storage tank body is connected with a pump station. According to the double-layer regulation and storage tank for regulation and storage for flood peak and regulation and storage for initialrainwater, by arranging the double-layer regulation and storage tank body, a water-passing corridor at a first underground layer, an air ventilating well, an air ventilating port at the first underground layer, an air ventilating port at a second underground layer, a water intake and drain gate of a regulation and storage tank body for flood peak, a downstream water drain gate, and a water intakegate of a regulation and storage tank body for initial rainwater in a cooperation use way, the problem of large land occupation area of the regulation and storage tank is solved; the double-layer regulation and storage tank for regulation and storage for flood peak and regulation and storage for initial rainwater has the advantages that the land occupation area is small, and the double functionsof regulation and storage for flood peak and regulation and storage for initial rainwater within the limited land usage range are realized; the practicality is improved, the regulation and storage capacity is greatly increased, the urban water drainage stress is relieved, the resource is saved, and the environment-friendly effect is realized; in addition, a water quality detector, an A / D (analog to digital) conversion module, a central processing unit, a power source module, a data comparison module and a data storage module are arranged.

The invention relates to the field of drainage ditches and aims to provide a drainage ditch for alleviating drainage pressure. According to the technical scheme, the drainage ditch is characterized bycomprising a ditch bottom and ditch walls, wherein the ditch walls are respectively arranged on both sides of the ditch bottom; overflowing holes are formed in the ditch walls; overflowing holes aresealed and covered with baffle blocks; hollow chutes are formed in the ditch walls in axis directions of baffle blocks; screw rods are horizontally arranged inside the chutes; the screw rods are rotationally connected to the chutes and transversely penetrate through the baffle blocks; guide parts for guiding the baffle blocks to slide in length directions of the screw rods are arranged inside thechutes; first bevel gears are rotationally connected to the inner surfaces of the ditch walls in length directions of the ditch walls; transmission parts for driving the screw rods to rotate are arranged between the first bevel gears and the ditch walls; and torsional springs are arranged between the first bevel gears and the ditch walls. The drainage ditch is applicable to construction of road water drainage facilities.

The invention discloses a method for domestication and modular planting of sedum lineare for roof greening. The method comprises the following steps of (1) domesticating sedum lineare at a cultivation base, so as to obtain high-quality finished grass; (2) pre-fabricating a plurality of planting structural frames, wherein each structural frame consists of a frame bottom and frame surrounding edges disposed at the periphery of the frame bottom; (3) laying a filter layer in each planting structural frame, and coating each filter layer with a light organic substrate with a thickness of 2-5 cm; (4) transplanting or planting the domesticated sedum lineare on the light organic substrate; and (5) vertically assembling the planting structural frames, loading the planting structural frames into a truck for transportation, and carrying the planting structural frames to roofs for laying and spreading. The invention also discloses the structural frame special for roof greening plantation. According to the technical scheme, modular planting is employed, the light organic substrate is high in fertility and facilitates growth of sedum lineare and helps to obviously reducing the load of a building structure; transportation is facilitated and transportation cost is reduced; rain can be buffered and accumulated, and excessive water is prevented from directly impacting the roofs, the roofs are protected, and construction of sponge cities is facilitated.

The invention discloses a high-rise building rainwater utilization system. The high-rise building rainwater utilization system comprises multilayer water-collecting tanks arranged on a building outer wall and overflow pipes communicated with the water-collecting tanks. The upper ends of the water-collecting tanks are provided with inclined water-collecting grooves. Rainwater of a building roof is gathered and then led into the water-collecting grooves through water-collecting pipes and led into the water-collecting tanks through the water-collecting grooves and water-collecting openings. The upper portions of the sides of the water-collecting tanks are provided with overflow openings, and the positions of the overflow openings are lower than those of the water-collecting openings. The overflow opening of the upper layer water-collecting tank is communicated with the overflow opening of the lower layer water-collecting tank through the overflow pipes, the lower end of each layer of water-collecting tank is provided with a water outlet, the water outlet is communicated with a water-taking pipe, and a water-taking stop valve is arranged at the position of a water-taking pipe port. The high-rise building rainwater utilization system can collect, store, purify and recycle rainwater resources on a high-rise building roof and an outer wall, and the secondary pressurization water supply demand of the high-rise building is reduced. The water storage capability of a city during the rainy season is enhanced, and the urban drainage pressure is effectively relieved.

The invention discloses a laying structure used for a garden greenbelt and beneficial to water storage and drainage. The structure comprises a grit soil layer, a purification water permeation layer, anon-woven fabric layer, a coarse sand isolation layer and a planting soil layer which are laid on base-layer soil from bottom to top in sequence; the planting soil layer is sunken downwards to form awater storage cavity. The planting soil layer is sunken downwards to form the water storage cavity. The laying structure has the functions of storage water, water permeation and purification; the planting soil layer is sunken downwards to form the water storage cavity so that rainwater can be effectively reserved on rainy days, the reserved rainwater can continuously and slowly permeate downwardsin a certain time period, the water content of soil can be increased, so that vegetation on the garden greenbelt is nourished, and groundwater resources can also be supplemented; the rainwater whichpermeates downwards is purified when passing through the water permeation layer, dust and soil can be filtered out, and the pollution of the rainwater surface source to the city environment is reduced.

The invention discloses a sidewalk drainage structure and a combined drainage method of the sidewalk drainage structure and a drainage kerb. The sidewalk drainage structure is characterized in that permeable concrete and a plurality of permeable blind road bricks form a permeable drainage surface layer; a permeable drainage base layer composed of a plurality of first drainage building blocks, a plurality of second drainage building blocks and graded broken stones or broken gravels is arranged below the permeable concrete, and a first cement mortar leveling layer and a second cement mortar leveling layer are laid below the permeable blind road bricks and the permeable drainage base layer respectively. A concrete cushion layer is arranged at the part below the second cement mortar leveling layer, and a compacted soil foundation is arranged below the concrete cushion layer. The sidewalk drainage structure has the advantages of being short in infiltration path, simple in structure, convenient to construct, capable of saving materials, obvious in economical efficiency and the like, and in addition, the invention further provides a drainage kerb structure. Therefore, rainwater on the surface of a road in a sidewalk or a square footpath provided with kerbs and infiltrated rainwater are directly led into the kerbs.

The invention discloses a novel embedded PVC speed bump with a drainage function. The novel embedded PVC speed bump comprises a base, the lower surface of the base is provided with a concrete foundation, a first auxiliary plate, a second auxiliary plate and a convex seat are fixedly connected to the upper surface of the base, the first auxiliary plate is fixedly connected to the outer wall of oneside of the convex seat, and the second auxiliary plate is fixedly connected to the outer wall of the other side of the convex seat. A luminescent sticker is fixedly connected to the top outer wall ofthe convex seat, a first sponge mat is fixedly connected to the upper surface of the first auxiliary plate, a second sponge mat is fixedly connected to the upper surface of the second auxiliary plate, and the inner surface of the first auxiliary plate is provided with first drainage holes. The novel embedded PVC speed bump has a great drainage function and is effective in drainage and capable ofwell warning vehicles in nighttime to guarantee driving safety of people, road drainage pressure can be relieved, and excellent pressure resistance and sun protection performances are achieved.

The invention discloses a low-carbon energy-saving noise-reducing lightweight water-permeable brick containing bamboo aggregate and concrete. The water-permeable brick is composed of the bamboo aggregate and cement mortar, and specifically comprises the following components: 18.2 to 29.3 parts of Portland cement, 25.2 to 40.1 parts of modified bamboo aggregate, 13.5 to 20.8 parts of medium sand, 0.5 to 1.5 parts of a recombination admixture, and 10 to 20 parts of neutral water. The water-permeable brick has the following characteristics that the water-permeable brick is high in freezing resistance, compression resistance and corrosion resistance; the porous material, namely the bamboo aggregate is environment-friendly and renewable; the internal porosity of the water-permeable brick is high, so the problem of surface water accumulation is effectively solved, the water-permeable brick has super-strong water permeability, and meanwhile, pavement noise can be reduced by 3-5 decibels; and in addition, due to the fact that the bamboo aggregate replaces traditional stone aggregate, the brick is 30-40% lighter than a common concrete brick under the same size, and is low in price compared with similar products. The low-carbon energy-saving noise-reducing lightweight water-permeable brick containing the bamboo aggregate and the concrete can be widely applied to non-motor vehicle roads, parking lots, scenic spots, gardens, sidewalks and the like.

The invention discloses a cutting breeding method of a novel variety of a plant Bigui vine. A cutting matrix at the early stage of the cutting is a mixture of disinfected clean fine sand and little peat soil; a cutting matrix at the later stage of the cutting is a mixture of soil and little peat soil; the cutting time at the early stage is 20 to 23 days, and the cutting time at the later stage is25 to 30 days; in the cutting matrix at the early stage of the cutting, a rooting fertilizer solution is applied once every 5 to 7 days; a composite fertilizer solution is applied once every 10 to 15days at the later stage of the cutting, wherein the rooting fertilizer solution is prepared from the following components by weight percent: 0.1 to 0.15 percent of ABT rooting powder, 0.1 to 0.2 thousandth of stigmasterol, 1 to 3 percent of iron disodium ethylenediamine tetraacetic acid, 0.5 to 1.5 percent of beta-glucose and the balance of water; and the single-time application quantity of the rooting fertilizer solution is 3 to 5 ml per plant. The invention aims at providing the cutting breeding method of the novel variety of plant Bigui vine with high survival rate.

A rainwater comprehensive utilization system for a gas station comprises a rainwater collection device, an underground rainwater storage tank, a rainwater treatment device and a rainwater utilization subsystem, wherein the rainwater collection device is connected with the rainwater treatment device which is connected with the underground rainwater storage tank, and the underground rainwater storage tank is connected with the rainwater utilization subsystem. By the rainwater comprehensive utilization system, rainwater resources are sufficiently utilized, water drainage pressure of the gas station is alleviated, and main products and facilities which are arranged below a freezing line are not affected in use; further, rainwater storage facilities and rainwater gutters and the like can be preformed parts, so that the rainwater comprehensive utilization system has the advantages of low economic cost, short construction period, low construction noise, high environmental applicability, low affection on the surroundings, superior comprehensive cost performance, recyclability of products and materials and the like when being assembled and constructed on constriction site, and is an ideal scheme for solving the problems of water drainage and using of the gas station.

The invention discloses a combined type municipal inspection well which comprises a rainwater inspection well and a sewage inspection well. The combined type municipal inspection well is characterizedin that rainwater openings are formed in the rainwater inspection well, the sewage inspection well is provided with a sewage pipe, a control box is arranged between the rainwater inspection well andthe sewage inspection well and is connected with a water barrier, a pressure sensor is arranged inside the control box, an inspection ladder is arranged in the control box, and the sewage inspection well and the rainwater inspection well are provided with inspection ladders. The combined type municipal inspection well has the advantages that the rainwater inspection well and the sewage inspectionwell are combined with each other, are excavated together and are simultaneously placed, and water can be drained via the sewage pipe by the water barrier under the control of the control box as soonas possible in heavy rain; the excavation pressures can be relieved, the work efficiency can be improved, and the drainage pressures of urban roads in stormy weather can be relieved to a great extentby the water barrier.

The invention provides a municipal drainage structure unit and a municipal drainage structure. The municipal drainage structure unit comprises a drainage well, a well lid, a filter screen and a cleaning mechanism. The drainage well is formed in a road surface; the well lid is arranged in a well lid groove formed in the drainage well; the filter screen is mounted on the upper side of the interior of the drainage well; and the cleaning mechanism is arranged on the upper side of the filter screen in the drainage well. According to the municipal drainage structure unit and the municipal drainage structure, impurities can be filtered through the filter screen, influence on drainage of the drainage well is avoided, and the drainage effect is improved; the municipal drainage structure composed of a plurality of municipal drainage structure units can automatically control all structures in the drainage well so as to automatically relieve drainage difficulty, meanwhile, real-time monitoring of all the drainage structure units can be achieved through the modern internet-of-things technology, workers can conveniently master the rainfall, the water accumulation amount and the like of all areas in real time. Therefore, the effects of preventing flood in advance, making early warning work and ensuring life and property safety of masses are achieved.

The invention discloses a sponge urban road rainwater infiltration system and a construction method thereof. The sponge urban road rainwater infiltration system comprises a rainwater infiltration layer, a purification layer and an underground water collecting pipe. The purification layer is located between the rainwater infiltration layer and the underground water collecting pipe. The rainwater infiltration layer sequentially comprises a water penetration brick layer, a sponge filter layer, a second collecting layer, a concrete base layer and a first collecting layer from top to bottom. Rainwater purification devices are arranged in the purification layer and connected with the rainwater infiltration layer and the underground water collecting pipe through flow guide pipes. The construction method of the system includes construction preparation, underground water collecting pipe laying, purification layer construction and rainwater infiltration layer construction. The system is high in practicality, the construction method is simple, the construction requirements of rainwater infiltration systems of different roads can be met, the drainage effect of urban road rainwater is improved, the water drainage pressure of municipal sewer lines is effectively relieved, meanwhile, purified rainwater can be supplied for life use according to different purification degrees and can also be used for irrigation, and water resources are greatly saved.

The invention relates to a regulation and storage structure for sponge city road construction. The regulation and storage structure for sponge city road construction is arranged on the two sides of aroad, and comprises a rainwater well and a multifunctional overflow water storage unit arranged on one side of the rainwater well, wherein a slow release device and a sewage draining assembly are arranged on the bottom part of the multifunctional overflow water storage unit; the bottom part of the slow release device is connected to the rainwater well through a slow release water outlet pipe; a sewage draining pipe is connected to the bottom part of the sewage draining assembly; and an overflow port is formed between the upper part of the multifunctional overflow water storage unit and the rainwater well. Compared with the prior art, the regulation and storage structure for sponge city road construction provided by the invention can be beneficial to effectively reducing a city rainwater drainage peak value, alleviating the drainage pressure of an existing drainage pipe network, reducing the investment cost of the drainage pipe network, particularly effectively reducing the pollution brought by initial rainfall-runoff and improving the river water quality, and has favorable ecological benefits and social benefits.

The invention discloses a down pipe with an internal spiral structure, comprising a pipe body.The top of the pipe body is provided with an inlet filter ring, and a drain grille is disposed between the inlet filter ring and the pipe body; the inner wall of the pipe body is provided with a spiral slow discharge passage, the inner diameter of the spiral slow discharge passage on a horizontal projection is less than the inner diameter of the inlet filter ring, and an inner surface of the spiral slow discharge passage forms a cylindrical space in an enclosing manner, that is a central quick discharge pipe.The problem that a traditional down pipe focuses only on acceleration of water discharge and never focuses on excessively quick urban drainage flow, the moving time of a roof rainwater runoff in the down pipe can be effectively prolonged so that the speed of the roof runoffs gather to a municipal network is decreased, a peak value of a zonal rainwater gathering process can be reduced, and urban network drainage pressure is effectively relieved by prolonging the gathering time so that the chance of 'sea occurring in a city' is slimmed.

The invention discloses a rainwater penetrating-discharging integrated ecological system, which comprises penetration inspection wells distributed on the ground of residential areas, penetration drainage ditches which are in a network shape and connected on all the penetration inspection wells and transversal connecting pipes between the penetration inspection wells and the penetration drainage ditches. Permeable holes are formed on the side walls and at the bottoms of the penetration inspection wells, a gravel layer is laid in the peripheries of the penetration inspection wells, a layer of permeable geotextile is laid in the peripheries of the gravel layer, wellheads of the penetration inspection wells are provided with dirt-catching and sewage-blocking baskets therein and permeable wellcovers are covered on the wellheads; permeable holes are formed on the side walls of the penetration drainage ditches, the peripheries of the penetration drainage ditches are provided with the gravellayer, the peripheries of the gravel layers are provided with a layer of permeable geotexile, and the top parts of the penetration drainage ditches are covered with grate covers of the drainage ditches. The invention has the advantages of simple design principle and convenient construction. The invention can save water consumption, reduce rainwater runoff in a city and relieve municipal drainage pressure, thereby not only realizing early draining of rainwater, purifying water, but also realizing the penetration of rainwater, conserving underground water source and beautifying the peripheral ecological environment.

The invention discloses a polyethylene spiral corrugated pipe reinforced by a steel strip. The polyethylene spiral corrugated pipe comprises a pipeline body. The pipeline body comprises two circular plates and a straight plate, the two circular plates are arranged on two sides of the straight plate, a sound absorption reinforcement layer is arranged between the two circular plates, stretch-resistant reinforcement layers are arranged on the outer wall of the pipeline body, a sealing layer is arranged on the outer walls of the stretch-resistant reinforcement layers and the sound absorption reinforcement layer, reinforcement filled layers are arranged between the sealing layer and the stretch-resistant reinforcement layers, and the steel strip is arranged outside the sealing layer. The polyethylene spiral corrugated pipe has the advantages that the single pipeline body is processed to obtain two pipelines, the two pipelines are parallel to each other, accordingly, the problem of easinessin rolling and loosening due to a single pipeline can be solved, water can be distributed, and single-road drainage or water supply pressures can be relieved; one of the pipelines still can be used even when the other pipeline is blocked, accordingly, the time can be gained for maintenance and pollution discharge, the integral pipelines are high in strength and can resist high and low temperatures, and noise can be reduced.

The invention provides an ecological green land structure for a low-rise building and a method. According to the ecological green land structure for the low-rise building, an evergreen hedge is arranged at the low-rise building in the prevailing wind direction, a sunshine area is arranged between the evergreen hedge and the low-rise building, and an arbor area is arranged outside the evergreen hedge. A wind vane and anemometer is arranged on the periphery of the low-rise building and counts data of the prevailing wind direction; the evergreen hedge is arranged on the portion, a certain distance away from the low-rise building, in the prevailing wind direction; the arbor area is arranged outside the evergreen hedge. By means of the steps, wind prevention is achieved for the low-rise building in winter. The evergreen hedge and the arbor area are arranged on the periphery of the low-rise building, the landscape function of green land is achieved, and the function of climate regulation isfurther additionally added. According to the ecological green land structure, through combination of the evergreen hedge and the arbor area, on the premise of not influencing daylighting of the low-rise building, prevailing wind which passes through an arbor lower-layer through structure is guided in ascending in front of the low-rise building, the wind prevention effect of the green land is improved, and energy consumption for heating of the low-rise building in winter is indirectly lowered.

The invention relates to a tunnel storage drainage decompression structure and a tunnel structure spanning the soft rock section, and belongs to the field of tunnel structures to solve the problem oftunnel bottom structure failure caused by tunnel settlement in the soft rock section and late groundwater drainage. Joists as a bearing foundation for a secondary lining of an arch wall and a tunnel bottom box between the joists on both sides are arranged at the bottom of the tunnel arch wall. The joists and the tunnel bottom box are of a split structure. Two sides of the tunnel box body are anchored on surrounding rock on two sides of the arch wall, the box is of a hollow structure, and a storage drainage chamber is defined by a bottom wall, a top wall, side walls and end walls. Water guide ports communicated with the storage drainage chamber are arranged at two ends, and a vertical water guiding hole penetrating the bottom wall is formed at the bottom wall of the tunnel bottom body. Theconstruction of the tunnel bottom is facilitated by setting the tunnel bottom box and the joists, and the settlement of the tunnel bottom box and a tunnel is avoided. A certain water storage functionis achieved to alleviate the drainage pressure of a central drainage ditch and avoid tunnel water leakage and the like caused by groundwater drainage abnormality.

The invention relates to the technical field of municipal drainage facilities, in particular to a municipal road drainage structure which comprises a drainage well body, a well lid and an underground drainage pipe, the well lid is located at the top end of the drainage well body, the underground drainage pipe is located in the drainage well body, four water inlet grooves are formed in the well lid, and a movable plate is arranged at the top of each water inlet groove; a water inlet grating is arranged in the center of the well lid, a filter screen frame is arranged below the water inlet grating, a partition plate is arranged in the middle of the drainage well body, four guide columns are arranged on the partition plate, springs sleeve the guide columns, the filter screen frame sleeves the guide columns, and a transmission assembly is arranged between the filter screen frame and the movable plate. The condition in the drainage well main body can be clearly known, blockage caused by excessive waste deposition in the drainage well main body is reduced, an operator only needs to regularly clean the waste on the filter screen frame, the workload of the operator for removing obstacles in the well is reduced, and the working risk is reduced; and the transmission assembly can automatically adjust the displacement.

The invention discloses a ground beam type ditch which comprises ditch walls, a ditch cover, a ditch bottom and embedded parts. The ditch bottom is arranged at the bottom of the ditch. The ditch walls are arranged on the two sides of the ditch bottom, and the ditch bottom is connected with the bottoms of the ditch walls. The ditch cover is arranged on the upper portions of the ditch walls, and the embedded parts are arranged in the inner walls of the ditch walls. The ditch bottom is provided with a water draining hole, and the position, corresponding to the water draining hole, of the bottom of the ditch bottom is provided with a rubble layer. The ditch bottom is arranged on a foundation, the ditch walls are arranged on the two sides of the ditch bottom, and the ditch bottom is connected with the bottoms of the ditch walls. The ditch cover is arranged on the upper portions of the ditch walls, and the ditch walls, the ditch cover and the ditch bottom form a cavity. A cable or a pipeline can be arranged in the formed cavity, and the embedded parts can be used for fixing a cable support or the pipeline. The water draining hole is formed in the ditch bottom, the rubble layer is arranged at the position, corresponding to the water draining hole, of the bottom of the ditch bottom, water flowing into the ditch from a ditch cover gap can be easily drained out of the ditch, water is not accumulated in the ditch, the cable or the pipeline is prevented from being steeped in water. Meanwhile, due to the fact that the rubble layer is used for draining water, the water draining problem under the condition that a water draining system does not exist near the ditch is solved.