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318 results about "Geogrid" patented technology

A geogrid is geosynthetic material used to reinforce soils and similar materials. Geogrids are commonly used to reinforce retaining walls, as well as subbases or subsoils below roads or structures. Soils pull apart under tension. Compared to soil, geogrids are strong in tension. This fact allows them to transfer forces to a larger area of soil than would otherwise be the case.

Soft soil foundation embankment heightening and widening structure and construction method

The invention discloses a soft soil foundation embankment heightening and widening structure and a construction method, and belongs to the field of water conservancy projects. In order to solve the problems of uneven settlement, landslide instability and overlarge occupied area easily occurring when the soft soil foundation embankment is heightened and widened, the structure comprises precast concrete piles (top beams and ripraps are arranged on the tops of the piles) densely arranged at the slope toe outside the embankment, an inner side cantilever retaining wall (with drainage holes and a gravel inverted filter), geogrids laid in backfill soil in a layered mode, and CFG piles arranged on the lower portion in a plum blossom shape. The guardrail base and the flower bed are integrally poured with the retaining wall. The construction method comprises the steps of slide-resistant pile construction, earthwork excavation, CFG pile construction, retaining wall pouring, embankment body backfilling and embankment top road construction. Bidirectional control over settlement and horizontal displacement is achieved through cooperation of multiple structures, variable-stiffness leveling can be achieved by adjusting parameters of the CFG piles, and the variable-stiffness leveling structure has the advantages of skid resistance, stability, landscape optimization and land occupation saving and is suitable for soft soil foundation embankment upgrading and reinforcing projects.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Embankment widening construction method based on biomineralization and reinforcement cooperation

The invention relates to the technical field of embankment reinforcing and widening, and provides an embankment widening construction method based on biomineralization and reinforcement cooperation. The microcosmic cementation effect of calcium carbonate precipitation in the inclusion is induced by the enzyme and is combined with the macroscopic constraint of the geogrid, so that a friction-cementation composite interface is formed, and the shear resistance and impermeability of the new and old roadbed combined surface are greatly improved. Meanwhile, the synergistic enhancement transition area serves as a rigidity coordination layer, loads can be effectively homogenized, differential deformation can be effectively absorbed, and therefore differential settlement is restrained, and reflection cracks are prevented. According to the method, the microcosmic cementation strengthening capacity of enzyme-induced calcium carbonate precipitation and the macroscopic reinforcement restraining capacity of the geotechnical reinforcement material are subjected to space coupling and function cooperation, the weak area of the widened embankment is fundamentally improved, and the integrity and long-term stability of the widened embankment are remarkably improved.
Owner:HUNAN INSTITUTE OF ENGINEERING

Self-repairing flow state solidified soil reinforced retaining wall for slope toe reinforcement and construction method

The invention relates to a self-repairing flow state solidified soil reinforced retaining wall for slope toe reinforcement and a construction method, and the retaining wall comprises a wall body which is formed by self-repairing flow state solidified soil in a cast-in-place mode and is provided with extension sections on the two sides, and drainage holes are formed in the extension sections; the foundation is arranged on the foundation and used for supporting the wall body; the reinforcement system is composed of multiple layers of geogrids and embedded in the wall body in a layered mode, one end of each layer of geogrid is anchored in the wall body, and the other end of each layer of geogrid extends backwards and is anchored in the backfill area; when the retaining wall has micro-cracks due to uneven settlement of a soft foundation, the high-alkali environment at the cracks can immediately trigger the alkali-sensitive self-repairing microcapsules to be broken, the released repairing material can generate gel in situ to seal the cracks, the mechanism converts traditional passive damage into active repairing, crack development is effectively restrained, an erosion channel is blocked, and the service life of the retaining wall is prolonged. Therefore, the long-term durability of the retaining wall is obviously improved.
Owner:CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD +2

Geogrid and EICP synergistically reinforced soil embankment structure and construction method

The invention discloses a geogrid and EICP synergistically reinforced soil embankment structure and a construction method, and relates to the technical field of soil embankment structures. Comprising a pavement base layer, an embankment bearing layer and a natural soil foundation layer, and the natural soil foundation layer is used as a soil embankment structure support and is arranged at the bottommost layer; the pavement base layer is used for bearing an upper driving load and uniformly transferring the upper driving load to the embankment bearing layer below; and the embankment bearing layer is used for bearing the upper load transmitted by the pavement base layer. The engineering performance is improved through the multi-layer synergistic effect, the core reinforcing layer is of an innovative space grid structure and is composed of a prefabricated geogrid, a grid support arranged in the inclined direction and a rigid stress plate frame, a three-dimensional force transmission network is formed, the limitation of a traditional reinforcing method is broken through, and the engineering performance is improved. In addition, the grating support is arranged at a specific angle, the structural rigidity is guaranteed, and the stress concentration phenomenon is avoided.
Owner:HUNAN INSTITUTE OF ENGINEERING

Ecological protection construction method for high-filling side slope

The invention provides a high-filling slope ecological protection construction method, and relates to the technical field of slope protection engineering. The construction method comprises the following implementation steps: step 1, slope pretreatment; the method comprises the following steps: firstly, shaping and trimming a high-filled side slope, cleaning surface topsoil, gravels and weeds, and synchronously presetting a through-type drainage system at the top, the waist and the toe of the side slope; comprising the four steps of anchor rod laying, grouting and anchoring, lattice beam pouring and geogrid laying, specifically, drilling is conducted on the trimmed slope surface of the side slope, anchor rods are laid, lattice beams fixedly connected with the anchor rods are formed through pouring, then the geogrids are flatly laid in the coverage area of the lattice beams, and double fixing is completed. The anti-sliding stability of the slope body is enhanced, the geogrids can disperse the load of the slope body, the shear strength of the surface soil body of the slope is improved, the overall stability of the high-filled slope is remarkably improved, and geological disasters such as landslide and collapse of the slope are effectively prevented.
Owner:CHINA CONSTR FIFTH ENG DIV CORP LTD

Geogrid with drainage function and manufacturing device and method thereof

The invention belongs to the technical field of geogrids, and discloses a geogrid with a drainage function and a manufacturing device and method.The geogrid comprises a plurality of grid strips, the grid strips are divided into drainage strips and common strips, each drainage strip comprises a groove-shaped strip body, a drainage groove is formed in the groove-shaped strip body in the length direction of the groove-shaped strip body, and the common strips are arranged in the drainage groove. Geotextile is arranged on the groove-shaped strip body and located on the notch side of the drainage groove, the common strip comprises a rectangular strip body and a groove-shaped strip body, a plurality of fiber tows are arranged in the rectangular strip body at intervals, drainage strips are adopted as the longitudinal grid strips, and drainage strips or common strips are adopted as the transverse grid strips. The design of the longitudinal drainage strips is adopted, the drainage channel penetrating in the longitudinal direction is formed, free water in the soil body can be rapidly collected and directionally drained out of an engineering area, the soil body saturation degree is effectively reduced, the residence time of water in the soil body is shortened, and the problems that due to water accumulation, the dead weight of the soil body is increased, and the bearing capacity is reduced are solved.
Owner:LUZHOU SHENGYANG NEW MATERIAL CO LTD +1

Injection molded geogrid (01)

1. The name of the design product: injection-molded geogrid (01). 2. The use of the design product: to enhance the structure of soil, for engineering reinforcement and protection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: Design 1 perspective view. 5. Design 1 is designated as the basic design.
Owner:LUZHOU SHENGYANG NEW MATERIAL CO LTD

A construction method to improve the drainage capacity of road structures

This invention provides a construction method for improving the drainage capacity of road structures, relating to the field of drainage function technology for the renovation and upgrading of old roads. It separates water bodies between the upper and lower structural layers and the original ground surfaces on both sides of the road structure layer by forming an emulsified asphalt layer and waterproof geotextile. A rapid drainage structure is formed using a concrete pavement crushed stone layer, filled with crushed stone, drainage geogrids, sidewalk rubble, a filter layer, and drainage pipes. This achieves rapid drainage of the road structure, ensuring the stability of the road structure layer in the renovation of old pavements, reducing differential settlement caused by groundwater and other factors, and avoiding disturbance to the road and the resulting reflective cracks. This invention improves the drainage performance at the junction of sidewalks and roads, reducing water disturbance problems.
Owner:CHINA MCC17 GRP CO LTD

Slope surface form for high-fill side slope of transformer substation

The utility model relates to the technical field of slope stabilization, aims to solve the problems of high labor cost, time and labor waste, slow construction progress and low working efficiency in the prior art, and provides a slope surface form for a high fill slope of a transformer substation. A slope surface is arranged at one end of the backfill body, the slope surface and the backfill body are integrally formed, a plurality of backfill layers are arranged in the backfill body, geogrids are clamped between the adjacent backfill layers, woven cloth is arranged at the ends, close to the slope surface, of the geogrids, and backfill soil is arranged in the woven cloth. The utility model has the beneficial effects of low labor cost, time and labor saving, fast construction progress and high working efficiency.
Owner:SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP

Redundant and safe reinforced soil structure and construction method

The invention relates to the technical field of slope supporting construction of constructional engineering, and particularly discloses a redundant and safe reinforced soil structure and a construction method. Reinforced soil is of a multi-step structure and is constructed on a weathered rock foundation; the reinforced soil sequentially comprises a plain concrete foundation, multiple layers of integral steel-plastic geogrids, a graded broken stone drainage layer, a clay water-resisting layer, a waterproof geomembrane, a concrete sealing bottom and plain filling soil from bottom to top, and reinforced concrete panels are poured on the outer sides of the integral steel-plastic geogrids. A reinforced concrete foundation is arranged at the bottom of the reinforced concrete face plate, a cement soil cushion layer is laid at the bottom of the reinforced concrete face plate, drainage holes and pre-embedded steel tie bars are arranged in the reinforced concrete face plate, the pre-embedded steel tie bars and the whole steel-plastic geogrids are bundled up, and a gravel inverted filter bag is arranged in each layer of steel-plastic geogrids. The clay water-resisting layer and the gravel drainage layer are laid to achieve redundant safe water prevention and drainage, the construction period is controllable, and the manufacturing cost is relatively low.
Owner:CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP +2

Red mud storage yard greening slope reinforcing method based on timber pile-grating anchoring technology

The invention discloses a red mud storage yard greening slope reinforcing method based on a timber pile-grating anchoring technology. According to the method, the five-in-one reinforcing and greening system integrating deep anchoring, matrix tamping, surface layer restraining, composite drainage and vegetation covering is formed through the six steps of anchoring groove excavation, greening matrix laying, timber pile arrangement, geogrid laying, composite drainage system construction and vegetation planting. The problems that a traditional reinforcing technology is high in cost, poor in corrosion resistance and weak in deformation control, and a regreening matrix is prone to loss are solved, and the method has the advantages of being high in construction efficiency, low in cost, high in stability and high in regreening survival rate and is suitable for slope collapse prevention and ecological restoration of various red mud storage yards of a valley type, a sloping field type and the like; and particularly, the dual requirements of long-term stability control and continuous growth of vegetation in a strong alkaline environment can be met.
Owner:GUIZHOU NORMAL UNIVERSITY +3

Roadbed for municipal road engineering

The utility model relates to the technical field of municipal engineering, in particular to a roadbed for municipal road engineering, which adopts the technical scheme that the roadbed comprises an original foundation and a substrate layer, earthwork is excavated on the top surface of the original foundation, the substrate layer is paved on the top surface of the excavated original foundation, and a roadbed layer is paved on the top surface of the substrate layer. A base layer is laid on the top face of the roadbed layer, a surface layer is laid on the top face of the base layer, a plurality of stand columns are arranged and installed on the surface of the original foundation, the lower ends of the stand columns are inserted into the deep position of the original foundation, fixing rods are inserted into the upper ends of the stand columns, and geogrids are fixedly installed between the fixing rods at the upper ends of the stand columns. The roadbed structure has the beneficial effects that the overall tensile strength and shear strength of the roadbed are enhanced through the geogrids which are vertically arranged in each layer of the roadbed, so that the effect of reducing hollowing in the roadbed is achieved, the problems of cracks, cracks or local collapse and the like on the pavement are further avoided, the service life of the pavement is prolonged, and the safety of the pavement is improved.
Owner:QINGDAO PLANNING ENG DESIGN RES INST CO LTD

Geogrid with reinforced side length

The utility model relates to a side length reinforced geogrid which comprises a plurality of regular hexagon units arranged in a determinant mode and quadrilateral units located in the regular hexagon units, and the four corners of each quadrilateral unit are located on the four side edges of the corresponding regular hexagon unit respectively. First reinforcing ribs which are arranged in a crossed mode and serve as rectangular diagonals are further arranged in the quadrilateral units. The quadrangle units are arranged in the regular hexagon units, the corners of the quadrangle are located on the four side lengths of the hexagon, and therefore the strength of the side lengths of the regular hexagon units is enhanced, meanwhile, the strength of the side lengths of the regular hexagon units is further enhanced through the arrangement of the first reinforcing ribs, and the stress strength of the corners of the quadrangle is improved; the interlocking effect is improved, and meanwhile the supporting strength in the quadrangle is enhanced.
Owner:SHANDONG FEICHENG LIANYI ENG PLASTICS CO LTD

Solid waste flexible landfill reinforcing mechanism

ActiveCN224678754UCarbon fibersBasalt fiber
The utility model relates to flexible landfill reinforcement technical field, concretely relates to a kind of solid waste flexible landfill reinforcement mechanism, including side weir, composite reinforcement mechanism is provided in the inside of side weir, composite reinforcement mechanism includes the carbon fiber geogrid of several groups being laid in the inside of side weir, the top of carbon fiber geogrid is fixedly connected with flexible layer, flexible layer is composed of rubber particle and bentonite, basalt fiber is mixed in the inside of flexible layer, the top of flexible layer is fixedly connected with steel fiber concrete layer, the surface of steel fiber concrete layer is provided with four groups of installation slot. The utility model cooperates through side weir and composite reinforcement mechanism, provides high-strength tensile property through carbon fiber geogrid, effectively resists tensile deformation caused by uneven settlement of landfill, utilizes flexible layer to be made of rubber particle-bentonite-basalt fiber composite, and has elastic deformation capacity and impermeability.
Owner:YANGZHOU JIEJIA IND SOLID WASTE HANDLING CO LTD

Telescopic geogrid and processing equipment thereof

The invention relates to the technical field of geogrids, in particular to a telescopic geogrid and processing equipment thereof, and the telescopic geogrid comprises a plurality of transverse fiber bundles and a plurality of longitudinal fiber bundles; the plurality of transverse fiber bundles are arranged in parallel at intervals; the longitudinal fiber bundles are arranged in parallel at intervals; connecting pieces are mounted at the intersections of the transverse fiber bundles and the longitudinal fiber bundles, and each connecting piece comprises a body; transverse through holes matched with the transverse fiber bundles are formed in the body; longitudinal through holes matched with the longitudinal fiber bundles are formed in the body; the transverse through hole is formed below the longitudinal through hole; a through hole is formed in the middle of the body; cylindrical tables are arranged at the corners of the top face and the bottom face of the body. According to the telescopic geogrid, the stability of connection of the fiber bundles can be remarkably enhanced, and the problems that the fiber bundles fall off and deviate under construction impact are effectively reduced. The machining equipment can be matched with the structural characteristics of the telescopic geogrid in a targeted mode, and the machining process is efficiently completed.
Owner:DE SHENG SYNTHETIC MATERIALS CO LTD

Roadbed widening reinforced soil supporting structure and construction method thereof

PendingCN122629768AConfined spaceGeogrid
The present application relates to the roadbed construction technical field, more specifically, it relates to a kind of roadbed widening reinforced soil supporting structure and its construction method.It includes modular wall, horizontal geogrid, inclined geogrid around pipe turning tensioning structure, short anchor rod, round pipe type grid turning component, EPS light load reduction structure, top joint tensioning structure, adjustable shrinkage connecting piece and composite drainage system.Modular wall is assembled by prefabricated module;Horizontal geogrid is laid in layers to enhance filling body;Inclined geogrid is arranged in the middle module layer, which is led out by connecting groove, turns back to connect to adjacent module after passing through round pipe turning component of exposed end of short anchor rod, forming turning tensioning system;Short anchor rod is anchored into stable soil body;EPS is arranged on wall back to reduce load;Top geogrid is tensioned through adjustable connecting piece.The present application is suitable for narrow and steep road section, can utilize loess locally, effectively anchors in limited space, and can long-term regulate deformation.The present application is mainly applied to roadbed widening reinforced soil supporting.
Owner:山西省智慧交通实验室有限公司 +2

Method for embankment construction on soft ground

The application discloses a kind of embankment construction methods of soft ground, it is related to the technical field of road construction, comprising the following steps:S1.in the construction filter pile and extruded pile in foundation;S2.construction drainage pipeline;S3.in the construction drainage ditch on the both sides of embankment;S4.construction drainage pipe gallery on foundation;S5.lay filter layer above drainage pipe gallery;S6.lay embankment earthwork, and set up geogrid in embankment earthwork;S7.construction pavement.The application has the effect of reducing the influence of groundwater on embankment structure.
Owner:BEIJING ZONGJIAN TECH CO LTD

Deep tailing pit one-time filling vacuum preloading collaborative consolidation system and construction method

The invention discloses a deep tailing pit one-time filling vacuum preloading collaborative consolidation system and a construction method. The system is composed of a multi-layer rigid horizontal drainage network, a vacuum preloading sealing treatment device and a drainage network dynamic intelligent adjusting device in a cooperative mode. The drainage network is composed of geogrids and drainage plates fixed to the geogrids, and an anti-deformation horizontal drainage framework is formed. The dynamic adjusting device can monitor and actively adjust the elevation and form of each layer of drainage network in real time in the whole process of one-time filling of tailing mud and subsequent vacuum preloading through a vertical rod, a pull rope motor, a tension sensor and a lifting rope, and it is ensured that a drainage channel is always unblocked. The problems that after the deep pit is filled at a time, a drainage system is prone to failure, and consolidation is slow are solved, rapid, uniform and controllable efficient consolidation is achieved, the period is remarkably shortened, and the stability of a backfill body is improved.
Owner:FUZHOU UNIV +2

Waterproof construction method for cave dwelling building roof

The invention discloses a waterproof construction method for a cave dwelling building roof. The waterproof construction method comprises the following steps that firstly, part of original covering soil is dug; 2, mixing the excavated original covering soil with a curing agent, an additive and water to obtain flow-state solidified soil; and thirdly, a first layer of flow state solidified soil is poured on the compacted covering soil, then an adhesion agent is brushed, geogrids are laid, and then a second layer of flow state solidified soil is poured. According to the method, part of original covering soil of the cave dwelling building roof is excavated and prepared into the flow-state solidified soil, finally the flow-state solidified soil is poured back to the cave dwelling building roof, site spoil is utilized, resource utilization of building waste is achieved, and the method is economical and environmentally friendly; meanwhile, narrow gaps, pores and cracks which are difficult to treat by a traditional material are filled by utilizing the fluidity and the self-compaction characteristic of the fluid-state solidified soil; and furthermore, a solidified body formed after hardening has excellent anti-permeability performance, so that permeation of kiln crown covering soil water is effectively blocked, the stubborn disease of kiln crown covering soil water seepage is radically treated, and the material cost is reduced by more than 30% compared with that of a traditional method.
Owner:SHAANXI ACAD OF ARCHITECTONICS +1

Branch pile embankment reinforcing structure suitable for deep soft soil foundation

The utility model discloses a branch pile embankment reinforcing structure suitable for a deep soft soil foundation, which comprises a road surface, embankment filling soil, a geogrid, a broken stone hardcore, a solidification layer and a squeezing branch pile which are sequentially arranged from top to bottom, the squeezing branch pile downwards extends into the soft soil foundation, the top end of the squeezing branch pile is embedded into the solidification layer, and the bottom end of the squeezing branch pile is embedded into the solidification layer. And a force bearing disc is extruded and expanded in the curing layer at the top end of the extruded and expanded branch pile. The bearing disc is extruded and expanded in the curing layer to play the role of the pile cap, the load of the embankment is conducted to the branch disc pile, the low embankment is prevented from having a mushroom pavement by coordinating deformation, in addition, the tedious steps of pile cap construction are avoided, and the bearing capacity of the curing layer is fully mobilized.
Owner:GUANGDONG PROVINCE COMM PLANNING & DESIGN INST

Capillary drainage geogrid

ActiveCN224451579USoil scienceSuction drain
This utility model discloses a capillary drainage geogrid, comprising a geogrid body composed of longitudinal and transverse grid strips arranged at uniform intervals; each longitudinal grid strip contains a drainage pipe arranged along its length, the cross-sectional area of ​​the drainage pipe being ≥10mm². 2 Each transverse grid band contains capillary tubes along its length, maintaining communication with the upper part of the drainage pipe wall. The capillary tubes have a diameter of 0.5~1.0mm and are arranged in multiple evenly spaced rows along the width of each transverse grid band. At the bottom of the capillary tubes located between adjacent longitudinal grid bands, a strip-shaped capillary suction port with a width of 0.3~0.5mm is formed along its length. The advantages of this invention are that it significantly improves water absorption and drainage speed, accelerates soil drainage and consolidation, reduces seepage pressure within the soil, improves soil stability, and extends the service life of the geogrid.
Owner:YELLOW RIVER ENG CONSULTING CO LTD

Site verification field test kit for geogrid stabilized roadways and other infrastructure

A system for testing a constructed roadway is provided. An example system may include a first test sensing device. The first test sensing device includes at least one sensor and a surface plate. The surface plate is positioned adjacent a top surface of a constructed roadway and the at least one sensor captures at least one sensor reading during application of a load on the surface plate. The example system may also include at least one processing device configured to determine a displacement of the constructed roadway based on the at least one sensor reading and compare the displacement of the constructed roadway to an expected displacement based on a composition of the roadway. The expected displacement corresponds to a desired permanent displacement of the constructed roadway.
Owner:TENSAR INTERNATIONAL CORP

Bridge end transition slab device for preventing collapse

The utility model discloses a bridge end transition slab device for preventing collapse. The bridge end transition slab device comprises a soil filling layer; the geogrid net is arranged in the soil filling layer, and the top surface of the geogrid net is flush with the top surface of the soil filling layer; the lean concrete layer is arranged on the soil filling layer; the lower buffer layer is arranged on the lean concrete, the abutment cap and the sleeper beam layer and is formed by grouting polyurea grouting liquid; the butt strap body is arranged on the upper surface of the lower buffer layer; and the upper buffer layer is solidified on the top surface of the butt strap body and is formed by grouting polyurea grouting liquid. Polyurea grouting liquid is added to the upper layer and the lower layer of the butt strap body to form the upper buffer layer and the lower buffer layer, vibration generated when a vehicle passes through is relieved through the elastic effect of the polyurea grouting liquid, and the possibility of cracks is reduced; the concrete is protected by utilizing the waterproof and damp-proof characteristics of the polyurea grouting liquid, so that the butt strap is prevented from being corroded and the strength is prevented from being reduced, and steel bars are protected; the polyurea grouting liquid has high strength and binding power, the structure is reinforced, the overall stability and bearing capacity are improved, and the service life is prolonged.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Multi-stage reinforcing construction method for granite stratum high-filling roadbed

The invention discloses a multi-stage reinforcing construction method for a granite stratum high-filling roadbed, and belongs to the technical field of roadbed construction in road engineering. The method aims at solving the problems that the granite stratum and roadbed filler interface bonding is weak, water drainage in the high-fill body is not smooth, and stability control in the construction process is difficult. The method comprises the following steps: scabbling the surface of the granite foundation, and laying a cement bentonite slurry transition layer to enhance interface bonding; a vertical drainage system is arranged after the first layer of filler is laid; then layered filling and reinforcing are conducted, geogrids are laid on each layer, door-shaped anchor rods are used for anchoring, then a water-permeable gravel layer is covered, and circulation is conducted till the designed elevation is reached; meanwhile, monitoring points are arranged on the center line and the slope toe of the roadbed, and construction parameters such as filling pause, reinforcement layer addition or compaction process adjustment are dynamically adjusted according to horizontal displacement data. The method is mainly used for building the high-fill roadbed on the granite stratum, and the overall stability and construction safety controllability of the roadbed can be effectively improved.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD +3

Water conservancy and hydropower dike slope protection structure

The utility model relates to the technical field of dike slope protection structures, in particular to a water conservancy and hydropower dike slope protection structure. Comprising a foundation reinforcing layer arranged on a slope surface, a buffer drainage layer is arranged at the top of the foundation reinforcing layer, a soil layer is arranged at the top of the buffer drainage layer, a concrete grid is arranged at the top of the soil layer, plants are arranged in the concrete grid, and the foundation reinforcing layer comprises geogrids. Every two adjacent geogrids are connected through a connecting piece, the connecting pieces are fixed to the slope surface, and criss-cross drainage blind pipes are arranged in the buffering drainage layer. According to the dike slope protection structure, the anti-scouring capacity of the slope can be enhanced, and meanwhile the ecological environment protection function is achieved.
Owner:衡水市水资源保护与水利工程建设抢修中心

Pine pile cofferdam structure

The utility model relates to a pine pile cofferdam structure which comprises a plurality of pine pile rows, a reinforcement cage is installed on the lower portion of one pine pile row, a concrete fixing table is poured on the outer sides of the pine pile rows and the reinforcement cage, the pine pile rows are driven into a river bottom to form a double-layer wall body, and the bottom of the concrete fixing table makes contact with the river bottom. A U-shaped first geogrid layer is arranged on the inner side of the wall body, a first waterproof membrane cloth layer is arranged on the inner side of the first geogrid layer, a second waterproof membrane cloth layer is arranged on the inner side of the first waterproof membrane cloth layer, the second waterproof membrane cloth layer is filled with filler, and a plurality of second geogrid layers are laid in the filler from bottom to top. Fixing assemblies are arranged on the upper portions, located on the water surface, of the pine pile rows, fixing sleeves are arranged on the tops of the pine pile rows, and every two adjacent pine pile rows are fixedly connected through the fixing assemblies and the fixing sleeves. The waterproof box is good in strength and stability, good in waterproof effect and convenient to use.
Owner:TIANJIN ZHENJIN ENG GRP

Composite prevention structure for preventing soft soil and miscellaneous fill from interpenetration and construction method

PendingCN122446682AMicroorganismSoil science
The application discloses a composite prevention and treatment structure for preventing soft soil and miscellaneous fill from interpenetrating and a construction method, and belongs to the technical field of foundation treatment. The structure is arranged between a soft soil layer and a miscellaneous fill layer and sequentially comprises, from bottom to top, a lower layer isolation unit composed of a geocell filled with granular materials and forming a flexible raft support, a microbial cementation unit including a three-dimensional microbial carrier layer and microbial mineralization products planted in the three-dimensional microbial carrier layer, and an upper layer constraint unit adopting a geogrid and a mechanical interlocking with the miscellaneous fill. Through the synergistic effect of physical isolation and biological cementation, the calcium carbonate crystals generated by MICP are used to block the interface micro-pores, and the macro-reinforcing function of the geosynthetic material is combined, so that the interface fine particle loss and interpenetration deformation problems are effectively solved. The application has the advantages of high shear strength, good reinforcement uniformity, green environmental protection, strong puncture resistance and the like, and can significantly improve the long-term stability of a complex foundation.
Owner:CHINA RAILWAY CONSTR GROUP CO LTD +2

A method and device for intelligent grouting of aeolian sand composite roadbed resources

The application belongs to the technical field of road engineering and foundation treatment, and provides a wind-sand composite roadbed resource intelligent grouting construction method and equipment, which comprises the following steps: after the foundation is leveled, wind-sand is used as the main filler to carry out layered paving and compaction of embankment and lower roadbed; grouting point positions are laid out on the lower roadbed layer; high-performance slurry is used to carry out pressure grouting, and based on the real-time collection results of the compaction degree, the penetration pressure-depth curve, the grouting flow, the lifting speed and the grouting amount per unit depth, the opening and closing of the grouting valve, the grouting pressure and the lifting speed are interlocked controlled or adaptively adjusted to form a continuous and uniform cement column reinforced body; the column top is controlled to be higher than the top surface of the lower roadbed to form a protruding section and is maintained until the preset strength is reached; then, geogrid is laid to make the column top protruding section penetrate and embed in the grid mesh, and the upper roadbed and the pavement structure are continuously constructed; the application takes into account the resource utilization of wind-sand, the collaborative utilization of industrial solid waste and the intelligent control in the construction process.
Owner:HEBEI CHENGKE EXPRESSWAY CO LTD

Anti-settlement highway subgrade structure in cold region

The utility model belongs to the technical field of highway subgrades, and particularly relates to a cold region anti-sedimentation highway subgrade structure which comprises a lower base layer, baffles, a soil filling layer, a base plate, a drainage groove, a hole plate, a geogrid, a reinforcing net, concrete, an upper base layer and a surface layer, the baffles are arranged on the two sides of the lower base layer, the soil filling layer is laid on the top of the lower base layer, and the base plate is arranged on the top of the soil filling layer. The drainage groove is formed in the top of the base plate and horizontally penetrates through the baffle, the hole plate is arranged on the top of the base plate, the geocell is laid on the top of the hole plate, and the concrete is laid on the top of the reinforcing net and backfilled in the geocell. According to the anti-settling highway subgrade structure in the cold region, the drainage channel is arranged in the foundation, water permeating into the foundation is discharged outwards through the drainage channel, loss of soil texture of the foundation is reduced, the foundation is reinforced, and the service life of the foundation is prolonged.
Owner:王烨

Cooling ecological side slope pile net structure roadbed

The utility model relates to the technical field of road engineering, and particularly discloses a cooling ecological side slope pile net structure roadbed which comprises a heat reflection road surface, a cooling vegetation side slope, a roadbed filling layer, a mattress layer, a pile net structure and a U-shaped drainage structure. The heat reflection road surface is laid on a subgrade filling layer, cooling vegetation side slopes are arranged on the two sides of the subgrade filling layer, geogrids are additionally arranged in the subgrade filling layer to enhance the stability of the subgrade filling layer and prevent cracking, a mattress layer is arranged below the subgrade filling layer, and a pile net structure is arranged below the mattress layer. A threaded structure is arranged at the lower end of the pile net structure pile foundation, so that the pile net can be inserted below the frozen soil upper limit of a frozen soil layer, and U-shaped drainage structures are arranged outside the two sides of the cooling vegetation slope corner. The heat reflection road surface can improve the proportion of reflected solar radiation and prevent heat from being transmitted to the frozen soil layer, vegetation is planted on the two sides of the roadbed, and ecological cooling is achieved. Meanwhile, U-shaped drainage structures are arranged on the two sides of the roadbed, and hydrothermal erosion is prevented.
Owner:CHONGQING JIAOTONG UNIV