77results about How to "Easy backfill" patented technology

The invention discloses a garbage classified recycling treatment environmental-protection device. The garbage classified recycling treatment environmental-protection device comprises a second motor, astirring roller, a partition plate, a degradable garbage smashing area, a plastic smashing area, a third motor, a rotating rod, a smashing blade, a bearing, an air heater, an air pipe, sliding rails,a handle, a drawer, a partition net, a metal storage box, a leading-out sliding way, a separation area, a tooth guide rail, a protective shell, a forward and reverse rotating motor, a cylindrical gear, a mounting plate, rotating wheels, an electromagnet, a connecting rod, a rolling groove, a movable plate, a reset spring, a limiting plate and hinges. Through the partition net, the drawer can be mounted at the bottom of the metal storage box; drying agents are placed in the drawer so as to absorb moisture in air; the air heater blows hot air into the metal storage box through the air pipe so that moisture of metal can be conveniently evaporated for achieving dryness, the oxidizing reaction of the metal slows down, accordingly rust of the metal is relived, and the recycling rate of the metal is increased.

The invention relates to a method for observing a root growth process of deep rooting plant alhagi sparsifolia. A device involved in the method consists of a sampling channel, an observation surface, concrete wall bodies, a bottom plate, a water conveying circular pipe and a martensitic bottle. The method comprises the following steps of: establishing a box body with a cement structure at a region of a desert, where the deep rooting plant alhagi sparsifolia grows; arranging two groups of gradient unit grids which are symmetrically arranged in the box body, wherein a wall body of each unit grid is a transparent movable observation surface wall body, and the rest three wall bodies are concrete wall bodies; and performing tracing observation on the root growth process, from the root growth process of a surface water utilization stage at the initial stage of growth to the root growth process of a ground water utilization stage at the later stage of growth, at different growth and development stages of the alhagi sparsifolia by using the transparent movable observation surface. The method is easy to operate and convenient to use and provides a new method and approach for repair of Alhagi sparsifolia in the southern fringe of Tarim Basin.

The invention discloses a high-low cutting edge double-wall steel cofferdam reinforced concrete once bottom sealing construction method which comprises the steps that Step one, steel cofferdam construction is performed: double-wall steel cofferdam sinks to a pre-designed construction position, high-low cutting edges are arranged at the bottom of the double-wall steel cofferdam, inclined surfaces are designed as the bottom surfaces of the cutting edges, and are supported on an inclined bare rock surface, and a plurality of groups of first anchor steel bars are arranged on the cutting edges; Step two, steel casing laying is performed: a steel bar anchor structure is arranged on the outer side wall of the bottom of each steel casing, and comprises a plurality of rows of second anchor steel bars distributed from the top down; Step three, riverbed rock surface patching is performed: a riverbed rock surface is backfilled with a mixture to form a backfilled layer; and Step four, bottom sealing reinforced concrete layer construction is performed: a horizontal steel bar mesh is mounted on the backfilled layer, and concrete is poured into the double-wall steel cofferdam to form a concrete bottom sealing layer. The method is simple in step, reasonable in design, low in construction difficulty, short in construction period and good in using effect, and can effectively solve the various problems in the conventional plain concrete bottom sealing method.

The invention provides a sponge city construction groundwater recharge well and relates to the technical field of drainage facility. The sponge city construction groundwater recharge well comprises a drill hole which penetrates an aquitard and a water-bearing sand layer, wherein the drill hole is internally provided with a rapid sponge; a gravel bed anti-filtration layer is arranged between the rigid sponge and the bottom of the drill hole; the outer layer of the rigid sponge is coated with a geotechnical fabric; the part, which is 20-30cmm away from the ground 1, at the top of the rigid sponge is provided with a sand layer anti-filtation layer which is flush with the road surface. The invention also provides a rapid well formation method of the recharge well. A drill machine is used for drilling holes; the sand gravel anti-filtration layer is paved at the bottom of the drill hole and is provided with the rigid sponge; the outer side of the rigid sponge is wrapped with a geotechnical fabric; then the sand layer anti-filtration layer is paved on the geotechnical fabric and is flush with the road surface, so that the groundwater recharge well is formed. The sponge city construction groundwater recharge well is capable of solving the problems of complex construction, high cost, long time and the like in groundwater infiltration facility during existing sponge city construction.

Mining provides our society with many of minerals, metals, and gemstones for a wide variety of applications from mundane items through to expensive jewelry. But the mining operations generate waste and large empty shafts and stopes within the ground. It would beneficial to provide a lightweight material for backfill which can provide safer working conditions for miners as well as advantages in respect of weight reduction, reducing water consumption, rheology improvement and cost minimization. Equally, it would be beneficial for the lightweight backfill material to include mining tailings to reduce the impact external to the mine. However, the inclusion of mine tailings into a foam is counter-intuitive as mine tailings are generally characterized by a high proportion of small particles with sharp edges. However, embodiments of the invention provide just such a foam based mine backfill material.

The invention relates to a underground large capacity optical cable connecting box, which belongs to the optical cable transmission technique field. The connecting box includes a box body and a seal cover, and a cable inlet, an optical cable routing bracket, an optical cable core-strengthening fixed card, an optical fiber fixed card, a guide fiber groove, a fusion fiber tray, a jumping wire coil fiber case and the like are arranged in the box body. The cable inlet, the optical cable core-strengthening fixed card and the optical fiber fixed card are respectively positioned on the sidewall of the upper part of the box body. The optical cable routing bracket is positioned on the around wall of the upper part of the box body, and the fusion fiber tray is positioned on two opposite walls in the box body. The guide fiber groove is connected between the optical cable core strengthening fixed card and the fusion fiber tray, and jumping wire coil fiber case is arranged at one side of the fusion fiber tray. The connecting box has the advantages that: the construction is simple and swift, the construction can be easily executed in downtown flourishing sections, can not affect the traffic, and can effectively reduce the occupied land area of downtown streets. The underground connecting box can be prevented from damaging, so as to ensure the secure communication. The connecting box has large capacity, and can be applied to the convergence layer and the optical cable inlet and outlet layers where optical fiber is centralized.

The invention discloses a soil organic restoration device for smart agriculture. A thermal stripping box is clamped to one side of the top end of a supporting frame, a movable roller is placed on the inner side of the thermal stripping box, a discharging hopper is installed on the inner side of the thermal stripping box, a separation limiting plate is connected to the inner side of the thermal stripping box, a concentration sleeve is welded to one end of the thermal stripping box, and a gas conveying pipe penetrates through one end of the concentration sleeve. A gas inlet end of the gas conveying pipe is installed at the top end of a concentration box in a penetrating mode, a gas outlet pipe penetrates through one end of the movable roller, and a gas outlet end of the gas inlet pipe is installed at the bottom end of a separation box in a penetrating mode. Through a conveying belt, the movable roller and the gas conveying pipe, generated steam is exhausted while soil is subjected to thermal stripping, the moisture content in the thermal stripping box is reduced, and meanwhile, heat is recycled for the second time, so that the movable roller is heated, the temperature of the movable roller is guaranteed, soil is heated while the conveying belt is dried, the soil is prevented from being attached to the surface of the conveying belt, and the treatment effect of the soil is guaranteed.

The invention relates to the technical field of drainage pipeline engineering, and particularly relates to a construction method of a drainage pipeline. The construction method of the drainage pipeline is characterized in that fixing structures, drainage ditches, water collecting wells and the like are additionally arranged on pipelines, and the problems that the pipelines float due to accumulatedwater in a groove, the pipeline butt joint installation, pipeline installation position and like are influenced can be effectively solved. Meanwhile, according to the additionally-arranged fixing structures, a C20 concrete wrapping layer outside the local pipeline can share the pressure of the pipelines from the upper portions of the pipelines, and the pressure resistance of the installed pipelines is improved, and moreover, the convex parts at the tops of the outer walls of the pipelines can facilitate aligned straight connection and installation between the adjacent pipelines; meanwhile, cover plates are matched with the convex parts at the tops of the outer walls of the pipelines, so that the pipelines can be prevented from moving and deviating after being connected, and the two sidesof the pipelines can be backfilled symmetrically and uniformly in the S7 groove backfilling.

The invention discloses a fabricated temporary support device and application thereof, comprising a lining covered on the side surface of the support, an anchor bar (1) arranged on the side surface ofthe support, an article skeleton arranged between the anchor bar (1) and the lining, wherein the side surface of the support is fixed through the lining; a fixed mount point is formed on the side surface of the support through the anchor bar (1); the connection intensity of the lining is improved through the article skeleton, the anchor bar (1) is connected with the lining and the article skeleton, so that the fabricated connection on the side surface of the support is achieved, and the working efficiency is improved.

The invention discloses a transplanting method for performing longitudinal control in a rape pot seedling ditch. A rape pot seedling transplanting operation is carried out by an inner-ditch longitudinal transplanting machine; a transmission gear is arranged on a frame of the inner-ditch longitudinal transplanting machine; the transmission gear is connected with a planting device and a soil holdingdevice mounted on the frame; a ditcher, a bulldozer, a seedling guiding device and a seedling conveying cup assembly are mounted on the frame; a planting ditch is formed on a ridge side; the plantingdevice is used for performing reciprocating transplanting along a horizontal-longitudinal direction in the planting ditch in order to plant the rape pot seedlings into reclaimed soil of the plantingditch, so that the transplanting speed is increased effectively; a seedling pushing plate of the planting device is used for pushing the seedlings and can rotate at a small angle to prevent backward throwing of seedlings and soil during high-speed horizontal transplanting; the horizontal longitudinal transplanting is performed together with earthing by a soil holding plate in order to simulate manual transplanting and soil holding, and effectively enhance the seedling transplantation quality; a starting-stopping mechanism of a seedling conveying cup is controlled through a cam, so that the seedling dropping accuracy and row spacing consistency are improved effectively; multi-gear adjustment is performed by adopting a slide shifting gear in order to meet the requirement on different planting densities.

The invention relates to the field of garden tree planting equipment, in particular to a pit digging device for garden trees. The pit digging device for the garden trees comprises a vehicle body, a soil digging mechanism arranged at the front side of the vehicle body and an adjusting mechanism for adjusting the position and orientation of the soil digging mechanism. Through the arrangement of thesoil digging mechanism comprising a drilling barrel, a drilling rod and spiral blades and an adjusting assembly comprising a lifting assembly and a rotating assembly, during pit digging operation, thepit digging depth is conveniently controlled, meanwhile, soil is conveniently and temporarily stored in the drilling barrel, later-period soil backfilling operation is facilitated, and the overall tree planting efficiency is improved. By arranging the lifting assembly comprising a first lead screw assembly, the pit digging depth is conveniently adjusted, and meanwhile the soil height is increased; and by arranging a liquid pumping barrel, a liquid medicine barrel and a hollow drilling rod with spraying holes formed in the surface, the nutrient solution and the soil are evenly mixed, the nutrient solution is evenly distributed in the backfilled soil, and the fertilization effect is improved.

The invention relates to a water supply and drainage facility, and aims at providing a special crawling ladder for an inspection well. The special crawling ladder can be beneficial to use and maintenance of the plastic inspection well. The special crawling ladder for the inspection well comprises a supporting cage and a crawling ladder body. The outer side of the supporting cage is supported by the inner wall of the inspection well. The crawling ladder body is fixed into the supporting cage. The upper end and the lower end of the crawling ladder body are bent so that the middle of the special crawling ladder can get close to the center of the supporting cage. The area between the inner wall of the supporting cage and the special crawling ladder is used by a user to go up and down. The special crawling ladder is located at the positions, below the mouth of the inspection well, of an inner cavity of a shell and an inner cavity of a base body. The special crawling ladder and the mouth of the inspection well are each in the reducing shape with the upper portion thick and the lower portion thin. One steel ring on the special crawling ladder is supported by the reducing part of the inner wall of the mouth of the inspection well. The special crawling ladder is ingenious in structure and convenient to use.

The invention discloses a pipe fitting seedling transplanting, drilling and delivered seedling burying device. The device comprises a lifting rack and a hydraulic motor installed on the lifting rack, wherein a hollow transplanting drill rod is vertically installed on the rack through a bearing, a chain wheel driven by the hydraulic motor is arranged at the top end of the transplanting drill rod, and three horizontal baffles are hinged to the peripheral wall of the lower end of the transplanting drill rod in an evenly distributed and spaced mode. Each horizontal baffle is provided with a straight edge, an arc edge and a right-angle bending edge, wherein the outer side end of the straight edge forms a triangular cutting edge by being subjected to right-angle bending through the bending edge, and the bending edge at the rear side of the triangular cutting edge forms a guide plate. When the three horizontal baffles are closed, the straight edges and the triangular cutting edges of the three baffles are close to one another and gather at the center of the bottom face of the transplanting drill rod to form a drill bit, and the arc edges of the three baffles are flush with the outer edge of the bottom face of the transplanting drill rod.

The invention provides a device for agricultural seedling separation. The device for agricultural seedling separation comprises a driven bevel gear, a bevel gear, axles, a supporting frame, an inclined plant storage rack, a backfill wheel, a soil remover and a faldstool; a transmission cavity is formed in a main body; a plant falling hole is formed in the end face of the top of the main body; a traction column is arranged on the end face of the left side of the main body; a plough is arranged on the end face of the left side of the main body; a wheel cone is arranged at the bottom of the plough; wheels are arranged at four positions; the four wheels are arranged at the bottom of the main body through the axles; a protective frame is arranged on the end face of the top of the main body; sixplant storage holes are formed in a rotating block; the bottom of the rotating block and the top of a middle gear are mutually connected, so that turnover of the land is facilitated, a straight groove with the width of 10 cm is formed in the tilled land and the planting requirements of the seedlings in the later period is facilitated; through cooperative use of the wheel cone, the soil at the bottom of the groove can be turned over, the growth of the seedling root system is facilitated and the survival rate of the seedlings is increased.

The invention provides a lime-soil compaction pile sampling device and method. The sampling device comprises a jack sampling frame, a transmission guide rod, a fixed rod and a sampling knife; the jacksampling frame comprises a four-connection-rod support, a lead screw, a base plate connected with one side of the four-connection-rod support and a carry plate connected with the other side of the four-connection-rod support; the lower end of the transmission guide rod is connected with the upper end of the lead screw; the lower end of the fixed rod is fixedly connected with the base plate; the sampling knife comprises a first cutting ring and a second cutting ring coaxially fixed on the carry plate; the diameter of the first cutting ring is more than that of the second cutting ring, and thefirst cutting ring is sleeved on the second cutting ring; and the length of the first cutting ring is more than that of the second cutting ring. With the application of the sampling device provided bythe invention, the needed sampling hole is small, meanwhile, the sampling personnel does not need to punch for sampling, the security risk caused by manual punching for sampling is avoided, and the sampling cost is greatly reduced. After sampling is completed, the sampling hole only needs to be filled with sand, and backfilling is relatively simple.

The invention relates to a dewatering method and device for excess sludge and provides the dewatering method for the excess sludge. The method comprises the following steps: (A), vortex concentrationof surplus sludge; (B), filtration of the excess sludge by a fluidized bed; (C), vortex autorotation dewatering; (D), airflow acceleration sorting; (E), sludge vortex autorotation re-dewatering and particle capture. The invention also provides the dewatering device for the excess sludge.

The invention relates to a punching and pesticide applying integrated machine for improving soil with an interlayer, and belongs to the technical field of planting equipment. The punching and pesticide applying integrated machine for improving the soil with the interlayer comprises a supporting table, a fertilizer applying device, a transplanting device and a punching device are arranged at the bottom of the supporting table, and moving devices with telescopic functions are arranged at the two ends of the bottom of the supporting table. The punching and pesticide applying integrated machine has the beneficial effects that the machine integrates punching, transplanting and fertilizing, is suitable for soil with different hardness conditions, improves the working efficiency and saves the labor cost.

The invention discloses a soil hole groove excavating device for garden tree transplanting, and relates to the technical field of garden planting. The soil hole groove excavating device comprises a moving frame, a soil lifting mechanism driven by a double-shaft motor to rotate is arranged at the bottom of a lifting frame, and the side wall of the soil lifting mechanism is provided with a stirringbarrel fixed to the lifting frame in a communicating manner through a corrugated pipe; and a motor I is fixed at the top of the stirring barrel, and an intermittent discharging mechanism is arranged at the bottom of the stirring barrel. According to the soil hole groove excavating device, the vertical height of the lifting frame can be adjusted in a lifting manner through the arranged lifting mechanism, so that the soil lifting mechanism at the bottom of the lifting frame can be adjusted according to the digging depth; two arranged semicircular pipes can form a complete circular pipe in the digging process and get away from each other outwards after digging is finished, so that soil around a dug pit hole is compacted, and collapse of the soil around the pit hole is avoided; and an arrangedmixing mechanism can crush and mix the soil and chemical fertilizer, the soil is fluffy and fertilized and then discharged beside the pit hole, and backfilling of the soil is facilitated.

The invention provides an automatic mixing and dispensing machine for roadbed lime-clay. The automatic mixing and dispensing machine for the roadbed lime-clay effectively solves the problems that prior roadbed lime-clay backfill operating technology needs excessive equipment, the ratio of components in the roadbed lime-clay is hard to control, humidity of the lime-clay cannot be controlled, constructing environment is poor, and efficiency is low. The automatic mixing and dispensing machine for the roadbed lime-clay comprises a towing tractor, a frame is arranged on the towing tractor, and a water tank is arranged on the frame; a first water pipe, a second water pipe and a third water pipe are arranged below the water tank; a mixing device located on the frame is arranged below the first water pipe, a buffering device is arranged at the right side of the mixing device, a humidifying device is arranged at the left side of the mixing device, a spreading device is arranged at the left side of the humidifying device, and a raised dust prevention device is arranged at the left side of the spreading device. the automatic mixing and dispensing machine for the roadbed lime-clay has the efficient and perfect blending function, the working process is simple, time and labor are saved, labor capacity of workers is significantly reduced, the problem of raised dust in the construction site is greatly alleviated, the compositional ratio in the lime-clay backfilling process is effectively controlled, engineering constructing efficiency is greatly improved, engineering quality is improved, so that lime-clay backfilling becomes convenient, fast, simple and easy to conduct.

The invention discloses a convenient-to-use agent filling device for soil remediation, and belongs to the technical field of soil remediation. The convenient-to-use agent filling device comprises a first support plate, a protective shell is arranged on the upper surface of the first support plate, a liquid storage tank is arranged in the middle of the upper surface of the protective shell, a material pump corresponding to the liquid storage tank is arranged at one end of the upper surface of the protective shell, a feeding hose is arranged at the output end of the material pump, a filling mechanism is arranged in the protective shell, the filling mechanism comprises second supporting plates, and electric hydraulic cylinders corresponding to the second supporting plates are fixedly connected to the two ends of the first supporting plate. The device is simple in structure and convenient to use. When the device is used, a drill bit is driven by a driving motor to drill holes, drilled soilis conveyed into a mixing box, the soil and remediation liquid medicine are mixed in the mixing box, and then the mixed soil is backfilled, so that the filling effect of the filling device on the remediation liquid medicine is better, and the working efficiency of a user is improved.

The invention discloses a pipe periphery backfilling material suitable for a flexible pipeline and a preparation method and a backfilling method of the pipe periphery backfilling material. The pipe periphery backfilling material comprises the following components: 12 wt%-17 wt% of water, 1.2 wt%-1.5 wt% of cement, 14 wt%-19 wt% of fly ash, 53 wt%-57 wt% of fine sand, 6.2 wt%-7.6 wt% of stone powder, 0.4 wt%-0.6 wt% of a setting accelerator and 0.2 wt%-0.7 wt% of a water reducing agent. According to the pipe periphery backfilling material suitable for the flexible pipeline and the preparation method and the backfilling method of the pipe periphery backfilling material, the material does not need layered compaction in the backfilling process, it can be guaranteed that backfilling is dense at the haunch corner of the flexible pipeline, the stability of the overall structure of a flexible drainage pipe under a heavy-load pavement is guaranteed, the problems of pavement collapse, cracking and the like can be solved, the backfilling operation efficiency of the flexible drainage pipe is improved, and the backfilling cost is reduced. The preparation method and the backfilling method are simple and convenient to use.

Provided is a device with a sowing function for municipal engineering. The device includes two supporting boards, the lower side of each supporting board is fixedly connected with two rollers, movinggrooves are formed in the inner sides of the supporting boards respectively, a first moving plate is erected between the two moving grooves, and a driving motor is fixedly connected to the middle of the upper side of the first moving plate; an output shaft of the driving motor faces downward, the output shaft of the driving motor penetrates through the first moving plate, and a rotating shaft is fixedly connected to the lower end of the output shaft of the driving motor and provided with screw blades; the screw blades are sleeved with a soil discharge sleeve, the top of the soil discharge sleeve is fixedly connected with the lower side of the first moving plate, multiple soil discharge through holes are formed in the junction between the soil discharge sleeve and the first moving plate uniformly, and a soil smashing device is arranged on the outer side wall of the soil discharge sleeve. The device with the sowing function for municipal engineering has the advantages of being reasonablein structural design, convenient to use, great in digging effect, high in digging efficiency and the like and has a certain application and popularization value.

The invention discloses a casing type in-hole instrument positioning and embedding device. A monitoring instrument is fixed onto a mounting plate through super glue; the mounting plate is fixed onto a mounting main frame through positioning threaded holes and positioning screws; the mounting main frame is inserted into a drill hole; the mounting plate fixedly provided with the monitoring instrument is arranged in the position inside the inner cavity of the mounting main frame wherein the positioning threaded holes are formed, and then the mounting plate is aligned to the threaded holes and fixedly mounted and positioned on the mounting main frame from top to bottom layer by layer; a grouting pipe is inserted inside the drill hole and performs grouting until the drill hole is filled with grout. The casing type in-hole instrument positioning and embedding device is simple in structure, convenient to operate, free from complex mounting operations, accurate in positioning and capable avoiding restriction of external severe environments and influence on backfilling. The casing type in-hole instrument positioning and embedding device is particularly applicable to positioning and mounting monitoring instruments in narrow space and meanwhile is high in mounting effects and simple in operation.

The invention relates to the technical field of medical waste storage, in particular to a postoperative waste weighing and packaging device with a quick release structure. Comprising a main storage box for mobile phone postoperative garbage, a belt conveying mechanism installed below the main storage box, an electronic weighing module, an electric control hydraulic supporting rod, a first lateral adjusting motor, a second lateral adjusting motor and an electric thermoplastic sealing plate. According to the postoperative garbage weighing and packaging device with the quick release structure, an electronic weighing module used for installing an internal supporting and overturning device, an electronic control hydraulic supporting rod used for controlling the internal supporting and overturning device and a first driving mechanism controlled by a first lateral adjusting motor are arranged in a main storage box; and the second driving mechanism is controlled by a second lateral adjusting motor, and the electric thermoplastic sealing plate is used for sealing, so that the postoperative garbage storage container can be subjected to thermoplastic sealing while being weighed, and the functionality is greatly improved.

The invention relates to a water-sand backfilling construction platform of a pipeline in a municipal road limited space and a method thereof. The method comprises the following steps of step 1, construction preparation; step 2, sand gravel backfilling; step 3, sand or aggregate chip powder paving; step 4, watering and vibrating; step 5, dewatering and flat plate vibrating; step 6, removing sludgeand impurities; and step 7, compaction degree detection. Through the fluidity of water and the water permeability of the sand gravel are utilized, a layer of sand or aggregate chip powder is spread onthe surface of the backfilled loose gravel, water is poured on the surface of the sand or aggregate chip powder, and the gap of the backfilled gravel stone is filled with sand or stone chips by depending on the infiltration of the water flow and manual vibration action, so that the gravel stone reaches the maximum compactness, the compaction degree of the trench backfilling is guaranteed, the uneven sedimentation caused by insufficient compaction degree of a trench in the later stage is avoided; and the effect of conveniently backfilling the pipeline and the trench with limited operation space is achieved.

The invention relates to a gangue throwing machine for mine backfill and a using method thereof. The gangue throwing machine comprises a walking mechanism, a main belt conveyor and an end belt conveyor, the main belt conveyor is obliquely arranged and hinged to the walking mechanism, the lower end of the main belt conveyor is located behind the walking mechanism, and the upper end of the main belt conveyor is located in front of the walking mechanism; one end of the end belt conveyor is hinged with the upper end of the main belt conveyor, the pitching driving device is used for driving the main belt conveyor to pitch up and down, and the end driving device is used for driving the end belt conveyor to swing up and down relative to the main belt conveyor. High-speed throwing is achieved through the end belt conveyor, the throwing speed can be adjusted, different throwing angles can be provided by adjusting the angle of the end belt conveyor, backfilling of the top of a roadway is facilitated, and the device is small in occupied space, good in backfilling effect and capable of adapting to backfilling operation of various mine holes.

The embodiment of the invention discloses a building backfill adhesive and a preparation method thereof, and concretely relates to the technical field of building materials. The adhesive comprises anadhesive bag body, an expansion extrusion bag body is fixedly arranged in the adhesive bag body, an adhesive paste is filled between the interior of the adhesive bag body and the exterior of the expansion extrusion bag body, a plurality of adhesive outlet holes are evenly formed in the surface of the adhesive bag body, sealing films are pasted on two sides of the surface of the adhesive bag body,and a ventilation pipe is fixedly arranged at one end of the spray extrusion bag body. The adhesive bag body is used for containing the adhesive paste, the bag body is extruded by expansion to extrudethe adhesive paste from the adhesive outlet holes, the expanded expansion extrusion bag occupies the space of the original adhesive paste to support the interior of the adhesive bag body, the adhesive bag body and the adhesive paste backfill the filling position, and the adhesive bag body occupies part of the filling space, so the use amount of the adhesive paste is reduced, and then the construction cost of the adhesive is reduced.

The invention provides a comprehensive pipe rack foundation pit support replacement device. The comprehensive pipe rack foundation pit support replacement device comprises a support replacement device body located between a foundation pit support pile and a comprehensive pipe rack main body structure, and is characterized in that the support replacement device body comprises an enclosing purlin bracket mounted on the inner side of the support pile, a Z-shaped frame mounted on a roof of a pipe rack, pile enclosing purlin and pipe rack enclosing purlin, wherein the pile enclosing purlin and the pipe rack enclosing purlin are fixed to the enclosing purlin bracket and the Z-shaped frame correspondingly; and I-shaped steel is arranged between the pile enclosing purlin and the pipe rack enclosing purlin, one end of an L-shaped frame is placed on the roof of the comprehensive pipe rack, and the other end of the L-shaped frame is fixed to the upper part of a horizontal supporting plate of the enclosing purlin bracket. The comprehensive pipe rack foundation pit support replacement device is simple in structure, easy and convenient to operate, and capable of being quickly mounted and dismounted, being reutilized and achieving the purposes of saving materials and effectively shortening the construction period; and meanwhile the space can also be saved, and convenient conditions are provided for backfilling of fertilizer grooves between the comprehensive pipe rack and the support pile.

The invention relates to a scour monitoring system and method for a buried pipeline, and relates to the field of pipeline safety monitoring, and the scour monitoring system comprises at least one group of monitoring assemblies and a server; the monitoring assembly comprises an early warning piece buried in a soil layer and located above the pipeline, and the distance between the early warning piece and the pipeline is h1; the early warning piece is used for sending early warning information after the upper surface of the soil layer descends to the early warning piece due to water flow scouringand other reasons, and the early warning information mainly comprises serial number data of the early warning piece; and the server is used for receiving the early warning information and generatingan early warning event according to the early warning information, wherein the early warning event comprises recording the number data of the early warning piece and the receiving time of the early warning information. And finally, the worker can know the soil layer scouring position and time according to the received number data of the early warning piece and the receiving time. According to theinvention, the scour monitoring effect of the long-line-segment buried pipeline is improved.

The invention relates to a trenching assembly of a chain type trencher. Trenching tooth sets are arranged on a cutter chain of the trenching assembly, the trenching tooth sets of different specifications can be conveniently replaced through a first mounting structure, then grooves of different specifications can be rapidly matched, after the trenching tooth sets are abraded, the trenching tooth sets only need to be detached and replaced with new trenching tooth sets, then the trenching tooth sets can be directly used, a chain mounting block does not need to be replaced, the construction cost is reduced, when trenching is carried out on soil with different hardness, different chain units are arranged, stress is more uniform, abrasion is smaller, efficiency is higher, and then the trenching assembly adapts to different land conditions. With adoption of a soil cleaning scraping plate device, accumulation of covering soil after trenching can be reduced, and the quality of a trench is improved; with adoption of a spiral soil discharging device, cut soil returning into the trench can be reduced, and the working efficiency and the quality of the trench are improved; meanwhile, dug soil is accumulated beside the trench through the spiral soil discharging device, and backfilling after construction is facilitated.