Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

48results about How to "Avoid backfill" patented technology

Miniature soil hydrologic monitoring system suitable for high-heterogeneity karst sloping field

InactiveCN103454404AHigh recognition resolutionAvoid homogenizationEarth material testingMonitoring systemKarst
The invention discloses a miniature soil hydrologic monitoring system suitable for a high-heterogeneity karst sloping field. The miniature soil hydrologic monitoring system comprises a miniature region, a miniature interflow collecting system and a miniature direct surface runoff collecting tank. The miniature interflow collecting system is inserted below a sloping soil profile rock-soil interface below the sloping field miniature region for collecting interflow above the rock-soil interface; the miniature direct surface runoff collecting tank is inserted at the position of a sloping soil profile, which is close to the earth's surface for collecting direct surface runoff. The bottom surface of angle steel of the miniature direct surface runoff collecting tank is in contact with the top surfaces of an aluminum-plastic panel and a thin aluminum panel in the miniature interflow collecting system, and the miniature direct surface runoff collecting tank and the miniature sloping field region are fixed together through screws at two sides. According to the miniature soil hydrologic monitoring system, direct surface runoff and interflow of the miniature sloping field region can be simultaneously measured, the difficulty that the soil hydrologic process is monitored on the high-heterogeneity karst sloping field is solved, and a platform is provided for researches on aspects of the hydrologic process, the soil and nutrient loss principle, the karst process and the plant water adaptive mechanism in such karst sloping field.
Owner:INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI

Bidirectional in-situ blocking remediation system for nitrogen pollution migration of shallow groundwater

The invention relates to a bidirectional in-situ blocking remediation system for nitrogen pollution migration of shallow groundwater. The system is used for groundwater pollution control. The system mainly comprises a permeation well, a remediation filler, a filter material layer, a vegetation secondary adsorption interception area and monitoring wells; the permeation well is linearly buried perpendicular to a pollution feather-shaped body, and a shallow water-bearing stratum is exposed; organic mater permeation holes are formed in the positions, parallel to cylinder generatrices, of the wellwall at equal intervals; the remediation filler is located in the well; the outer side of the well is coated with the filter material layer; the monitoring wells are located on the two sides of the permeation well; and the vegetation secondary adsorption interception area is located on the remediation water outlet side of the permeation well. Compared with the prior art, the system has the advantages that a ground device and a power facility are not needed, and the construction, operation and maintenance cost is low; construction is easy, and difficulties in large-scale PRB excavation and earthwork are overcome; disturbance on the groundwater environment is reduced; biodegradation, physical adsorption, chemical reduction and phytoremediation are integrated, and therefore the groundwater remediation effect is enhanced; the nitrogen pollution migration in a lateral runoff and a vertical seepage of underground water can be blocked in a bidirectional mode, and the application prospect is wide.
Owner:TONGJI UNIV

User information backfilling method and device

The invention discloses a user information backfilling method and a device. The method comprises steps of acquiring a signaling transmitted by a first interface / a signaling transmitted by a second interface; according to the signaling transmitted by the first interface / the signaling transmitted by the second interface, generating a keyword, and establishing a mapping relation between the keyword and a user fixed identity identifier; and acquiring a signaling transmitted by a third interface, according to the signaling transmitted by the third interface, generating a keyword, searching the mapping relation according to the keyword generated based on the signaling transmitted by the third interface so as to obtain a corresponding user fixed identity identifier, and backfilling the obtained user fixed identity identifier through searching to the signaling transmitted by the third interface, wherein the third interface is an interface between an MME and a base station. In the way, a problem of the difficulty in acquiring of the user information during backfilling of the user information in the prior art can be solved.
Owner:SHANGHAI DATANG MOBILE COMM EQUIP +1

Multifunctional rape transplanter

The invention discloses a multifunctional rape transplanter. The multifunctional rape transplanter comprises a vehicle frame and a trailer frame, wherein the trailer frame is mounted at the rear side of the vehicle frame, an operating system, a traveling system, a fertilizing system, a watering system, a pot seedling tray rack and a box moving system are mounted on the vehicle frame, a rotary-tillage furrowing system, a hole digging system, a seedling pulling, conveying and falling device and a soil covering and compacting system are mounted on the trailer frame, the rotary-tillage furrowing system, the hole digging system and the soil covering and compacting system are sequentially mounted from front to back, a seedling guide cup of the seedling pulling, conveying and falling device is arranged between the hole digging system and the soil covering and compacting system, the fertilizing port of the fertilizing system is arranged at the front side of the rotary-tillage furrowing system, the water outlet of the watering system is arranged at the rear side of the soil covering and compacting system, and the pot seedling tray rack is connected with the pot seedling outlet of the box moving system and the entrance of the seedling pulling, conveying and falling device. The multifunctional rape transplanter is simple in structure, convenient in use, simple to process and manufacture and good in economical efficiency.
Owner:HUNAN AGRICULTURAL UNIV

Method for excavating and supporting subway station tunnel by adopting underground excavation construction channel

The invention discloses a method for excavating and supporting a subway station tunnel by adopting an underground excavation construction channel, relates to the technical field of tunnel construction, and mainly aims to solve the problems of complicated conversion procedures, high risk, high temporary support consumption and the like in a station tunnel construction method. The method comprises the steps of conversion construction of a main construction channel and a station tunnel, conversion construction of an auxiliary construction channel and the station tunnel and excavation support of the station tunnel; the top of the main construction channel is lifted to be flush with an arch crown of the station, and parallel station entering and portal steel arch frame support are adopted; andthe auxiliary construction channel adopts footage from the station tunnel, relates to the station excavation construction step sequence in the range of the conversion section and support at the connection position of the station tunnel and the auxiliary construction channel. The method aims to solve the problems of complicated construction steps, large construction risk of key sections and more temporary supports in the traditional construction method so as to expect the underground station tunnel construction to achieve safer and more efficient purposes.
Owner:ZHONGJIAN SUIDAO CONSTR CO LTD +1

Portable electric fertilizing machine

InactiveCN102577722ADigging holes and breaking soil is smallLow powerFertiliser distributersLow noiseReduction drive
The invention discloses a portable electric fertilizing machine. The portable electric fertilizing machine comprises a drill bit, a handle, a driving motor, a motor driver and a movable power supply, wherein the root part of the drill bit is assembled on a middle transverse plate of the handle; a fixing bolt hole for fixing a reducer is formed in the middle transverse plate of the handle; the root part of the drill bit is connected with a direct current motor through the reducer; the direct current motor is connected with the motor driver through a power cord; and the motor driver is connected with the movable power supply. Compared with ditching fertilizing machines, the portable electric fertilizing machine has the advantages that the hole-drilling and soil-breaking volume is small, the required power and energy consumption are low, the size of the whole portable electric fertilizing machine is small, and the weight of the whole portable electric fertilizing machine is light, so that the vehicle-mounted hole-type electric fertilizing machine can be applied to orchards, tea gardens and mulberry fields that the ordinary ditching machines cannot enter, as well as other environments; and compared with other hand-held gasoline engine-driven hole-drilling machines, the portable electric fertilizing machine has the characteristics of small vibration, low noise, no tail gas pollution, easiness in startup, portability, convenience for control and the like.
Owner:SOUTH CHINA AGRI UNIV

Vehicle-mounted hole-type electric fertilizing machine

The invention discloses a vehicle-mounted hole-type electric fertilizing machine. The vehicle-mounted hole-type electric fertilizing machine comprises a handle, a control button, a vehicle frame, driving wheels, universal driven wheels, a storage battery, a drill bit, a drill bit displacing mechanism, a driving motor and the like, wherein the drill bit displacing mechanism is arranged in the middle of the vehicle frame; and the lower end of the drill bit displacing mechanism is connected with the root part of the drill bit through a drill bit driving motor and a drill bit driving motor reducer. The vehicle-mounted hole-type electric fertilizing machine applies fertilizer by drilling a hole and using high-density bar-shaped fertilizer; and compared with ditching fertilizing machines, the vehicle-mounted hole-type electric fertilizing machine has the advantages that the hole-drilling and soil-breaking volume is small, the required power and energy consumption are low, the size of the whole vehicle-mounted hole-type electric fertilizing machine is small, and the weight of the whole vehicle-mounted hole-type electric fertilizing machine is light, so that the vehicle-mounted hole-type electric fertilizing machine can be applied to orchards, tea gardens and mulberry fields in mountainous areas and hilly areas that the ordinary ditching machines cannot enter, as well as other environments.
Owner:SOUTH CHINA AGRI UNIV

High speed railway roadbed dynamic evaluation method

A high speed railway roadbed dynamic evaluation method comprises the steps of measuring to obtain a roadbed surface dynamic load and a roadbed dynamic deformation actual measured value of a detectionposition first; determining a roadbed dynamic stress actual measured value and a final structural parameter of each layer of structure of a roadbed; obtaining a relation between the roadbed dynamic stress actual measured value of the detection position and a dynamic strain; according to the final structural parameter, obtaining a roadbed critical dynamic strain; according to the relation between the roadbed dynamic stress actual measured value of the detection position and the dynamic strain and the roadbed critical dynamic strain, obtaining a limit value of the roadbed dynamic stress of the detection position; and on the basis of the limit value of the roadbed dynamic stress, obtaining a limit value of roadbed dynamic deformation. According to the high speed railway roadbed dynamic evaluation method, on the basis of sufficiently considering high speed railway roadbed requirements and roadbed filling property, parameter standards are reasonably determined; and therefore, the roadbed power performance can be rapidly and accurately determined, and the applicability of the roadbed can be evaluated.
Owner:RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2

Pile foundation blasting protection device

The invention provides a pile foundation blasting protection device, and relates to the technical field of blasting protection. The pile foundation blasting protection device comprises a base, movable rods, a top plate, a buffer plate, a moving assembly and a first buffer assembly, four first through holes are formed in the base, the four movable rods are installed in the four first through holes correspondingly, and the top ends of the movable rods are fixedly connected with the top plate; the buffer plate slidably penetrates through the movable rods and is provided with a protective skirt, the moving assembly is installed on the lower surface of the base, the first buffer assembly comprises a first spring, the movable rods are sleeved with the first spring, the top end of the first spring is connected with the buffer plate, the lower surface of the buffer plate is provided with an offset cone, and the base is provided with a second through hole; and the second through hole corresponds to the offset cone. According to the technical scheme, the pile foundation blasting protection device has the beneficial effects that the protection effect is good, and backfilling is avoided.
Owner:甘肃兰金民用爆炸高新技术有限责任公司

Deep foundation pit underground structure anti-floating system and construction process

InactiveCN111733894AIncrease the anti-floating structure of the side wallAvoid backfillProtective foundationExcavationsWater flowWater well
The invention relates to a deep foundation pit underground structure anti-floating system and a construction process. The deep foundation pit underground structure anti-floating system comprises pulling anchor piles, net spraying structures and U-shaped water guiding grooves, wherein the net spraying structures are arranged between the anchor piles, the U-shaped water guiding grooves are formed inthe ends of the pulling anchor piles, and a drainage pipe is arranged on the net spraying structures and penetrates through a soil body, so that water flows to the U-shaped water guiding grooves through the drainage pipe, and the water guiding grooves are collected to a water collecting well; and a waterproof layer is arranged at the bottom of the anchor piles and a raft plate, one ends of waterstop screws are anchored on the anchor piles or sprayed on the soil body, a bottom plate is connected with the anchor piles, and side wall plates are also connected with the anchor piles. According tothe deep foundation pit underground structure anti-floating system, the anti-floating capability is effectively enhanced, the damage possibility of the bottom plate and the side wall plates are reduced, space narrow backfill construction and template construction on the outer side walls of the side wall plates are avoided, waste of a supporting structure is avoided, temporary primary investment of earthwork excavation and side modulus and the supporting structure is reduced, and the problems of narrow side wall outer construction space, insufficient structural anti-pull force, excessive sidewall water pressure excessive cracking damage and the like are well controlled and solved.
Owner:CHINA FIRST METALLURGICAL GROUP

Construction device for existing pile foundation pile connection in soil

The invention discloses a construction device for existing pile foundation pile connection in soil. The position of an existing pile foundation and the standard height of a pile top and the height ofa pile top super-filled concrete are determined;the soil is excavated by manual hole digging, and a bricking protection wall is set up; a super-filled part of the existing pile foundation is excavated,the super-filled part is subjected to laitance breaking, a fresh and compact concrete is broken, and it is ensured that the exposure length of a main rib of the existing pile foundation meets the requirements; the end of a manual hole diggingpile adopts an enlarged head form; a steel reinforcing cage of a pile adding part is laid down and welded with the main rib of the existing pile foundation;the concrete of the pile adding part is poured and fully vibrated and compacted. The device solves the construction problem of the existing pile foundation pile connection underground. Compared with atraditional treatment method, the device can reduce the large area of earth excavation, earthwork backfilling and concrete pouring,greatly form the protection for the foundation soil, be safe and reliable, and reduce construction costs.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Construction device for pile splicing of existing pile foundation in soil

The invention discloses a construction device for pile splicing of an existing pile foundation in soil. The position of the existing pile foundation and the pile top elevation are determined, and thepile top exceeds the concrete placing height; a manual hole digging manner is adopted to carry out soil excavating, and a brick shaft lining is arranged; excavating to the placing exceeding portion ofthe existing pile foundation is achieved, laitance breaking of the placing exceeding portion is achieved, breaking is carried out until the fresh dense concrete is achieved, and it is ensured that the main rib length exposing of the existing pie foundation meets the requirement; the bit expansion type is adopted in the manual hole digging pile end; a pile supplementing portion steel reinforcementcage is put down, and is welded with the existing pile foundation main ribs; the pile supplementing portion concrete is poured and is sufficiently subject to compaction vibration. The device solves the construction problem of pile splicing of the existing pile foundation below the ground, compared with the traditional treatment method, the large-area soil excavating, earthwork backfilling and concrete pouring amount can be reduced, the protection for the foundation soil can be greatly formed, safety and reliability are achieved, and the construction cost is reduced.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Tunnel-before-wall-type crossed tunnel portal excavation supporting construction method

The invention provides a tunnel-before-wall-type crossed tunnel portal excavation supporting construction method. A tunnel is excavated before cavern side walls, after system supporting is completed,the tunnel extends into a cavern, temporary supporting is conducted to ensure site construction safety, locked anchor bars and countersunk anchor bars are implemented to protect intersections, pre-splitting holes are formed in the circumferential direction along the cavern side walls for blasting, rock mass, nearby the intersections, inside and outside the cavern side walls is separated, during later excavation of the cavern, the rock mass within the pre-splitting range is mechanically excavated, secondary blasting damage is avoided, and system supporting follows till the intersections are excavated. A scheme for solving the problem of excavation supporting of the large underground cavern intersections is provided for a tunnel-before-wall-type excavation mode, excavation forming of the intersections can be ensured to a great extent, stability of surrounding rock of the tunnel intersections and the cavern high side walls is facilitated, overexcavation is reduced, later backfilling of alarge amount of concrete is avoided, the construction period is shortened, and the engineering cost is saved.
Owner:POWERCHINA HUADONG ENG COPORATION LTD

Construction process for simply plugging outer wall reserved sleeve in underground structure area

PendingCN112127390AAvoid backfillSolve the problem of mud rain leaking into the interior of the underground structureArtificial islandsProtective foundationPipeProtection layer
The invention discloses a construction process for simply plugging an outer wall reserved sleeve in an underground structure area. The construction process comprises the following steps that firstly,an outer wall column and the reserved sleeve in the underground structure area are completed; a handrail and a baffle plate are arranged on the inner side and the outer side of the reserved sleeve respectively, and the handrail on the inner side and the baffle plate on the outer side of the embedded sleeve are fixed through tie rods; after the baffle plate is fixed, a waterproof layer is additionally arranged on the outer side of the baffle plate; and finally, backfilling and tamping of the waterproof protective layer and earthwork layer by layer are conventionally organized. When pipelines are connected inside and outside an underground structure, water stop filler is embedded between the outer wall of a connecting pipe and the inner wall of the sleeve. The problem that mud and rain leakinto an underground structure after earthwork backfilling of a fertilizer tank is solved, and the purposes of facilitating construction, saving materials and reducing labor consumption are achieved.
Owner:JIANGSU NANTONG SANJIAN CONSTRUCTION GROUP CO LTD

Paddy field deep fertilization furrow opener

ActiveCN103430665AAvoid cloggingMeet the requirements of deep fertilizationPlantingFurrow making/coveringEngineeringPaddy field
The invention discloses a paddy field deep fertilization furrow opener. The paddy field deep fertilization furrow opener comprises a furrower and an up-and-down through mud guard, wherein the furrower is connected with the mud guard. The furrow opener further comprises a depth adjusting structure, wherein the depth adjusting structure comprises connecting holes formed on the back of the furrower and / or the mud guard and fixing rods located in the connecting holes to fix the furrower and the mud guard. In the adjusting process, the depth of the furrower is adjusted after a bolt is loosened without entirely dismounting; the adjusting is simple and convenient, the structure is simple, the slime can be effectively prevented from blocking fertilization holes, the deep fertilization demand in the paddy field is satisfied, the fertilizer use rate is effectively improved, and the paddy field deep fertilization furrow opener disclosed by the invention is wide in market application and spread prospect.
Owner:SOUTH CHINA AGRI UNIV

Flora Transplanting Device and Method

A device for facilitating the transplantation of a potted plant. The flora transplanting device includes a container having an open upper end, open lower end, and an intermediate surrounding side wall therebetween. The lower end can puncture a soil surface, allowing the flora transplanting device to be inserted into the soil by pressing on the upper end. The lower end is serrated to facilitate insertion of the device into the soil. Graduation marks are present on the outside of the surrounding side wall of the device to indicate insertion depth. In operation, the soil circumscribed by the device is removed and a plant is placed therein. The flora transplanting device supports the surrounding soil while the plant is inserted into the device to ease the process of planting. In some embodiments, the upper end of the device forms a handle to ease removal of the device from the soil.
Owner:WALKER JR KENNETH

Pneumatic ejection type liquid fertilizer applying device, system and method

The invention discloses a pneumatic ejection type liquid fertilizer applying device, system and method. The device comprises a pneumatic ejection type fertilizer applicator, a furrower and an adjusting rod, the pneumatic ejection type fertilizer applicator is arranged on the furrower, the furrower is fixedly connected with the adjusting rod, the adjusting rod is slidably and fixedly arranged on aframe, the system comprises an air compressor, an air storage tank, an air source treatment element, a pressure reducing valve, a liquid fertilizer box, a fertilizer quantity adjusting mechanism and the pneumatic ejection type liquid fertilizer deep applying device, the air compressor, the air storage tank, the air source treatment element, the pressure reducing valve and the pneumatic ejection type fertilizer applicator are sequentially connected, and the liquid fertilizer box, the fertilizer quantity adjusting mechanism and the pneumatic ejection type fertilizer applicator are sequentially connected. According to the device, liquid fertilizers can be atomized and deeply applied, the utilization rate of the liquid fertilizer can be increased, and agricultural non-point source pollution isreduced.
Owner:SOUTH CHINA AGRI UNIV

Vertical jacking construction method for tunnel inclined shaft entering main tunnel

The invention relates to the technical field of construction, and discloses a vertical jacking construction method for a tunnel inclined shaft entering a main tunnel. The method comprises the following steps that step one, a rectangular pilot tunnel is excavated when the inclined shaft is excavated to a certain distance away from the main tunnel; step two, a cuboid support is built in the rectangular pilot tunnel within the range of the main tunnel; step three, an arched support is built; and in the later step, excavation of a vault of the whole main tunnel part is completed through cyclic transposition jacking of two sets of jacks while excavation is conducted, and meanwhile independent supporting for the vault of the main tunnel is formed. According to the vertical jacking excavation method, traditional construction processes such as pilot tunnel climbing are abandoned, another path is found, main horizontal excavation is changed into main vertical excavation, the temporary supporting amount is reduced, and waste is avoided; and after excavation, a surrounding rock area of a three-fork joint section can be reserved, the expanding excavation problem is basically avoided, and large-mass concrete backfilling and large-scale use of complex supporting structures are also avoided.
Owner:CCCC TUNNEL ENG +1

Whirling well outer wall template construction method

ActiveCN110629794ASimple constructionReduce the amount of earthwork excavationArtificial islandsExcavationsRebarDrill hole
The invention discloses a whirling well outer wall template construction method. The whirling well outer wall template construction method includes an earth excavation step, a drilling and installingstep, a reinforcing steel bar installing step, a first template installing step, an embedded part arrangement step, a concrete pouring step, a second opposite pulling water stop screw welding step anda second template fixing and pouring step, wherein the drilling and installing step includes: using a drill bit to drill holes in a rock base layer on a retaining wall, setting the drilling intervalas y mm*y mm, setting the drilling depth to be larger than or equal to 100 mm, and installing expansion bolts in the holes after the holes are cleaned up, and the embedded part arrangement step includes: embedding embedded parts according to the following mode of setting the transverse interval as z mm and setting the lengthways interval as z mm in construction of reinforced concrete retaining wall bars or installation of a first template. A 200 mm thick reinforced concrete structure designed through the whirling well outer wall template construction method not only can be used as a whirling well foundation pit retaining wall, but also can be used as a template on the outer side of the tapered well wall of a whirling well, thereby achieving double benefit, and the retaining wall template is simple, efficient and quick to construct, and furthermore the whirling well outer wall template construction method improves construction quality of the well wall of the whirling wall, and shortensthe construction period of the whirling well.
Owner:CHINA MCC5 GROUP CORP

Double-row yam harvester

The invention discloses a double-row yam harvester, and belongs to the technical field of yam harvesting machinery. The double-row yam harvester comprises a suspension frame, a main rack, a gear box and an intermediate ditcher, a fertilizer soil pusher and a double-side vibrating soil shaker which are arranged on the main rack from front to rear in sequence; the intermediate ditcher comprises a chain wheel supporting beam, a ditching chain driving chain wheel, a ditching chain driven chain wheel and a yam center seam ditching chain, the ditching chain driven chain wheel is arranged at the lower end of the chain wheel supporting beam, and the upper end and lower end of the yam center seam ditching chain are in meshed connection with the ditching chain driving chain wheel and the ditching chain driven chain wheel respectively; the fertilizer soil pusher comprises a pair of symmetrically arranged auger shafts; the double-side vibrating soil shaker comprises a pair of yam bottom vibratingbreak shovel hinge structures and an eccentric rotating mechanism, the two yam bottom vibrating break shovel hinge structures comprise a vibrating shovel hinge bracket and a vibrating shovel respectively. The double-row yam harvester has the advantages of high harvesting efficiency and small damage to yams.
Owner:HEBEI AGRICULTURAL UNIV. +1

A kind of psammophyte cultivation device and method

The invention provides a psammophyte cultivation device and method, belonging to the field of psammophyte cultivation. The above-mentioned cultivation device includes a sleeve, a drill bit and a transmission shaft; the transmission shaft is connected with the drill bit, and the transmission shaft is used for transmission connection with the driving device, and the sleeve is set on the drill bit; The position piece can limit the movement of the transmission shaft towards the direction of approaching the sleeve. The invention can effectively improve the technical fortress and disadvantages in the process of planting shelter forests in the shifting sand environment in the arid area of ​​northwest China, and has the following advantages. First, mechanize and standardize the seedling planting process. Second, compared with the traditional planting idea of ​​relying on natural precipitation, this invention proposes for the first time to use the water stored in the wet sand layer deep in the dunes to increase the continuous water supply of plants, making the planting process "once and for all". Thirdly, the present invention can adjust the specification of the planting pit by changing the specification of the nested vertical auger bit according to the depth of the local wet sand layer and the planting species.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Psammophyte cultivation device and method

The invention provides a psammophyte cultivation device and method and belongs to the field of psammophyte cultivation. The cultivation device comprises a sleeve, a drill bit and a transmission shaft;the transmission shaft is connected with the drill bit, the transmission shaft is used for transmission connection with a driving device, and the sleeve sleeves the drill bit; a limiting piece is arranged on the sleeve and / or the transmission shaft and can limit the movement of the transmission shaft close to the sleeve. The psammophyte cultivation device can effectively improve the technical fortress and defects in the planting process of quicksand environment protection forests in the northwest arid region, and has the following advantages that the nursery stock planting process is mechanized and standardized; compared with traditional planting ideas relying on natural precipitation, it is firstly proposed that the moisture stored in wet sand layers at the deep positions of sand dunes is utilized to increase continuous moisture supply for plants so that the planting process can be operated all the time; according to different local wet sand layer depths and planting species, the specification of plant planting pits can be adjusted by replacing the specification of the nested vertical spiral drill bit.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Punching device for water conservancy project construction

The invention discloses a punching device for water conservancy project construction, and relates to the field of water conservancy projects. The punching device comprises a rack, a guide device, a drilling device and a soil pumping device; the guide device is fixedly connected with the rack; the drilling device is fixedly connected with the upper surface of the guide device; the soil pumping device comprises a soil pumping pipe, a connecting pipe, a soil storage bin and a suction pump; the soil pumping pipe is rotationally connected into the drilling device; one end of the connecting pipe isdetachably connected with the soil pumping pipe; the suction pump is detachably connected with the other end of the connecting pipe; the soil storage bin is fixedly connected with the lower surface ofthe soil pumping pipe and is close to one end of the suction pump; and the soil storage bin is in communication with the connecting pipe. According to the punching device for water conservancy project construction, soil can be prevented from falling and being backfilled into a hole after punching is completed.
Owner:胡腾飞

Miniature soil hydrologic monitoring system suitable for high-heterogeneity karst sloping field

InactiveCN103454404BHigh recognition resolutionAvoid homogenizationEarth material testingMonitoring systemKarst
The invention discloses a miniature soil hydrologic monitoring system suitable for a high-heterogeneity karst sloping field. The miniature soil hydrologic monitoring system comprises a miniature region, a miniature interflow collecting system and a miniature direct surface runoff collecting tank. The miniature interflow collecting system is inserted below a sloping soil profile rock-soil interface below the sloping field miniature region for collecting interflow above the rock-soil interface; the miniature direct surface runoff collecting tank is inserted at the position of a sloping soil profile, which is close to the earth's surface for collecting direct surface runoff. The bottom surface of angle steel of the miniature direct surface runoff collecting tank is in contact with the top surfaces of an aluminum-plastic panel and a thin aluminum panel in the miniature interflow collecting system, and the miniature direct surface runoff collecting tank and the miniature sloping field region are fixed together through screws at two sides. According to the miniature soil hydrologic monitoring system, direct surface runoff and interflow of the miniature sloping field region can be simultaneously measured, the difficulty that the soil hydrologic process is monitored on the high-heterogeneity karst sloping field is solved, and a platform is provided for researches on aspects of the hydrologic process, the soil and nutrient loss principle, the karst process and the plant water adaptive mechanism in such karst sloping field.
Owner:INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI

Rapid pit digging device for Chinese torreya planting and rapid pit digging method thereof

The invention discloses a rapid pit digging device for Chinese torreya planting and a rapid pit digging method thereof, and relates to the related technical field of Chinese torreya planting equipment. The rapid pit digging device for Chinese torreya planting comprises a platform capable of moving on the ground, wherein a fixing frame capable of achieving lifting is installed on the side surface of the platform through a hydraulic rod, one end, away from the platform, of the fixing frame is provided with a pit digging mechanism used for digging and stabilizing planting pits and a soil shifting mechanism, the pit digging mechanism comprises a rotating rod, a fixing plate used for installing the rotating rod is arranged in the fixing frame, the pit digging mechanism further comprises a plurality of pit digging sheets hinged to the outer wall of the rotating rod, and the soil shifting mechanism comprises a rotating disc sleeving the outer wall of the rotating rod; a shifting sheet is arranged on the edge of the rotating disc, a limiting groove is formed in the outer wall of the rotating rod in the center axis direction, and the inner wall of the rotating disc is slidably connected with the limiting groove in an inserted mode through an integrally-arranged limiting block. Through cooperative use of the devices, digging of the planting pits can be more convenient and efficient, the planting pits can be adjusted as required according to the size of Chinese torreya, and human intervention is not needed.
Owner:安庆永发农林发展有限责任公司

Method for water seepage, salt discharge and afforestation of low-humidity saline and alkaline beach and application of method

The invention provides a method for water seepage, salt discharge and afforestation of a low-humidity saline and alkaline beach. The method comprises the following steps of: (1) performing landscape micro-terrain modeling finishing on a saline and alkaline land parcel to be governed to form orographic uplift afforestation areas and low-lying water catchment and salt discharge areas, and excavating drainage ditches in a direction from high to low; (2) turning over the earth surface; (3) excavating flexible water seepage and salt discharge tape burying ditches; (4) arranging flexible water seepage and salt discharge tapes at the bottoms of the ditches; (5) forming intersected water barrier ridges; (6) adding an organic fertilizer, and plowing and harrowing a surface layer; (7) arranging integrated flexible salt discharge and air permeation shafts; and (8) cultivating and sowing saline-alkali-resistant arbor-shrub-grass plants on saline and alkaline land which is comprehensively governed and improved. A set of feasible comprehensive technical method is provided for the comprehensive governance and afforestation of saline and alkaline land in large areas; and the method is favorable for improving the afforestation effect and level of saline and alkaline areas.
Owner:江苏绿之源生态建设有限公司

Vehicle-mounted hole-type electric fertilizing machine

The invention discloses a vehicle-mounted hole-type electric fertilizing machine. The vehicle-mounted hole-type electric fertilizing machine comprises a handle, a control button, a vehicle frame, driving wheels, universal driven wheels, a storage battery, a drill bit, a drill bit displacing mechanism, a driving motor and the like, wherein the drill bit displacing mechanism is arranged in the middle of the vehicle frame; and the lower end of the drill bit displacing mechanism is connected with the root part of the drill bit through a drill bit driving motor and a drill bit driving motor reducer. The vehicle-mounted hole-type electric fertilizing machine applies fertilizer by drilling a hole and using high-density bar-shaped fertilizer; and compared with ditching fertilizing machines, the vehicle-mounted hole-type electric fertilizing machine has the advantages that the hole-drilling and soil-breaking volume is small, the required power and energy consumption are low, the size of the whole vehicle-mounted hole-type electric fertilizing machine is small, and the weight of the whole vehicle-mounted hole-type electric fertilizing machine is light, so that the vehicle-mounted hole-type electric fertilizing machine can be applied to orchards, tea gardens and mulberry fields in mountainous areas and hilly areas that the ordinary ditching machines cannot enter, as well as other environments.
Owner:SOUTH CHINA AGRI UNIV

A construction method for excavation and support of cross openings with holes first and then walls

The invention provides a tunnel-before-wall-type crossed tunnel portal excavation supporting construction method. A tunnel is excavated before cavern side walls, after system supporting is completed,the tunnel extends into a cavern, temporary supporting is conducted to ensure site construction safety, locked anchor bars and countersunk anchor bars are implemented to protect intersections, pre-splitting holes are formed in the circumferential direction along the cavern side walls for blasting, rock mass, nearby the intersections, inside and outside the cavern side walls is separated, during later excavation of the cavern, the rock mass within the pre-splitting range is mechanically excavated, secondary blasting damage is avoided, and system supporting follows till the intersections are excavated. A scheme for solving the problem of excavation supporting of the large underground cavern intersections is provided for a tunnel-before-wall-type excavation mode, excavation forming of the intersections can be ensured to a great extent, stability of surrounding rock of the tunnel intersections and the cavern high side walls is facilitated, overexcavation is reduced, later backfilling of alarge amount of concrete is avoided, the construction period is shortened, and the engineering cost is saved.
Owner:POWERCHINA HUADONG ENG COPORATION LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products