54 results about "Geogrid" patented technology

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.

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.

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.

This invention relates to the field of road surface settlement prevention technology and discloses a method for preventing settlement of the road surface at the edge of a basement. This method includes the following steps: First, the excavated surface of the basement is backfilled and compacted in layers until the compaction degree meets the design requirements; after backfilling the excavated surface to a suitable position at the top of the basement, a 20cm thick C30 reinforced concrete anti-settlement slab is constructed; after the anti-settlement slab is poured and cured, a 2m wide geogrid is symmetrically laid along its edges to prevent reflective cracking at the joints. This method for preventing settlement of the road surface at the edge of a basement can effectively solve the problem of uneven settlement of the road surface around the basement in residential areas. In addition, this method can reduce the impact of vehicle impact loads on the basement exterior walls, ensure the strength, rigidity, and stability of the roadbed, improve the bearing capacity of the roadbed and pavement, and fully guarantee the design service life of the road.

The utility model relates to the technical field of building construction, and the utility model provides a concrete panel formwork for geogrid reinforced soil retaining wall, it includes panel, fender and fastening sleeve. A plurality of panels are sequentially spliced to form a panel formwork. The number of fenders is several, which are horizontally arranged on the surface of the panel and correspond to the panel one by one. One end of the fender is provided with a bayonet, and the other end of the fender is a clamping end. After the adjacent two panels are spliced, two fenders located on the adjacent two panels are clamped. The clamping end of one of the two fenders is clamped with the opening of the other fender. The fastening sleeve is slidably arranged on the fender and close to the clamping end of the fender. After the adjacent two fenders are clamped, the fastening sleeve can be slid to the bayonet to limit and fix the clamping part of the two fenders. Through the above technical scheme, the technical problem that the length of the fender on the concrete panel is relatively long and a large amount of labor is required during transportation and assembly in the prior art is solved.

The utility model discloses a kind of applied to the gradual change type geogrid of widening roadbed, including at least one layer geogrid layer, the geogrid layer includes first grid assembly and second grid assembly: first grid assembly includes multiple hexagonal geogrid, multiple The hexagonal geogrid is laid flat, and the first grid assembly is located in new roadbed middle part;Second grid assembly has two groups, two groups The second grid assembly is respectively set in the left and right sides of the first grid assembly along the width direction of road, and the second grid assembly in inside is located at the junction of new and old roadbed, the second grid assembly in outside is located at new roadbed outside, The second grid assembly includes multiple triangular geogrid, multiple The triangular geogrid is laid flat.This gradual change type geogrid can solve the problem of insufficient strength of geogrid, uneven deformation of soft soil roadbed and stress concentration of widening roadbed.

A backfill retaining structure for unstable slopes in collapsible loess foundations is disclosed. This structure mainly comprises weather-resistant vegetation bags filled with silty clay containing grass seeds, ordinary vegetation bags filled with silty clay, and lime-soil compaction piles. The lime-soil compaction piles are arranged within the collapsible loess foundation. Weather-resistant vegetation bags and ordinary vegetation bags are arranged sequentially from the outside to the inside of the upper part of the collapsible loess foundation, and backfilled layer by layer with compaction. A backfill soil layer is placed between the unstable slope and the tail of the ordinary vegetation bags. The ordinary vegetation bags are wrapped and counter-compressed with geogrid every 3-4 layers; the ends are fixed to the geogrid with staggered anchor bars. This invention satisfies the bearing capacity requirements of the collapsible loess foundation and also resists horizontal thrust on the backfill soil of the slope, allowing the structure to fully perform its functions, minimizing environmental disturbance, and the planted grass seeds beautify the surrounding environment.

The utility model discloses a simple and easy device for geogrid manual stretching and fixing belongs to geogrid laying auxiliary tool technical field, including draw solid nail, draw solid nail includes horizontal part and vertical part, the horizontal part is U type pole, the both distal ends of horizontal part respectively extend downward and form vertical part, and the lower extreme of vertical part is the tip. The middle part of horizontal part still is provided with tension estimation part, and tension estimation part includes guide rod, spring and grip lever, and the middle part parallel of horizontal part sets up two guide rods, and the both ends of grip lever are slidably connected with guide rod respectively and do not depart from guide rod, and the spring is sleeved on the guide rod, and the guide rod is provided with the close scale, adopts the simple and easy device for geogrid manual stretching and fixing of the utility model, can be good in solving the problem of geogrid stretching, flat laying and fixed, and the construction is simple, and the forming effect is better.

The application provides a temperature control type pile-bearing embankment structure with tie beams and a construction method thereof, which comprises, from bottom to top, a threaded pile layer, a connecting layer, a cushion layer, a geogrid layer and an embankment layer; the threaded pile layer comprises a plurality of vertical threaded piles, and each threaded pile comprises a pile body, a pile cap, a pile tip and a heat exchange channel arranged in the pile body; the connecting layer comprises a grid structure formed by tie beams connecting adjacent pile caps and has a built-in grouting pipe network; the application further comprises an energy supply module, an active temperature control module and a monitoring and control module. The threaded pile body cavity and the refrigeration assembly form a closed loop circulation system through the heat exchange pipe, and the coolant flows through the heat exchange pipe to absorb the heat of the soil around the pile under the driving of the compressor; in cooperation with the temperature sensor and the threshold control of the microcontroller, the refrigeration assembly can be automatically started and stopped, the frozen soil temperature can be effectively maintained stable, and the frost-heave settlement can be inhibited.

This invention discloses a method for constructing a fractional-order creep damage constitutive model, relating to the field of geotechnical engineering technology. The method includes: conducting creep tests on a geogrid under different types of soil constraint stress to obtain creep curves; calculating the creep strain of the geogrid at different time points based on the creep curves and plotting the curve of the geogrid's creep strain versus time; introducing the Khachanov damage variable according to the creep damage law to determine the damage variables during the geogrid creep process; constructing an initial fractional-order creep damage constitutive model based on the damage variables, and determining the parameters of the initial fractional-order creep damage constitutive model through the curve of the geogrid's creep strain versus time, thus obtaining the fractional-order creep damage constitutive model. The fractional-order creep damage constitutive model constructed by this invention can accurately reflect the variation law of the geogrid at different creep stages.

This utility model belongs to the field of geogrid testing equipment, and in particular, it is a geogrid tensile strength testing device based on a universal testing machine. It includes an operating table, with a first lead screw and a second lead screw mounted on the upper side of the operating table. An upper support seat is mounted on the top of the first and second lead screws, and a top plate is mounted on the top of the upper support seat. A driving lifting device is installed inside the operating table. A third lead screw is mounted on one side of the upper support seat, and a fourth lead screw is mounted on the other side. Through the cooperation of the operating table, lead screws, top plate, support plate, fixing rod, clamping plate, support seat, base, LED explosion-proof light, motor, gears, etc., the geogrid can be effectively clamped, greatly improving its stability. The LED explosion-proof light design allows for clearer observation by the operator, significantly improving the efficiency of geogrid tensile strength testing.

The utility model relates to the technical field of building engineering support structure construction, concretely relates to a prefabricated assembly type reinforced retaining wall structure, including reinforced concrete base layer, be provided with prefabricated concrete panel on the reinforced concrete base layer, the prefabricated concrete panel is mortise and tenon structure, and the prefabricated concrete panel is connected between cooperation, the connecting place of prefabricated concrete panel is provided with multilayer steel plastic geogrid, the top of prefabricated concrete panel is provided with waterproof layer, and the waterproof layer is provided with filter bed, and the filter bed is communicated with the drain hole set up on the prefabricated concrete panel and is provided. The utility model aims at solving the problem that the existing retaining wall is unstable due to the insufficient connection stability of prefabricated panel, the poor stress dispersion of reinforced structure and the imperfect drainage system, and the structure is easy to lose stability.

The utility model discloses a kind of side slope anti-seepage geomembrane and side slope anti-seepage structure, belong to side slope processing technical field.The side slope anti-seepage geomembrane includes geomembrane (1) and the upper and lower sides of its upper layer geogrid (2) and lower layer geogrid (3), and upper layer geogrid (2) and lower layer geogrid (3) are all formed by grid bar that is crossed vertically and horizontally;Upper layer geogrid (2) and lower layer geogrid (3) are same in shape and are set up in correspondence with up and down, and glass fibre mesh (4) that is same in shape with upper layer geogrid (2) is equipped on geomembrane (1), and upper layer geogrid (2) and lower layer geogrid (3) respectively fixed in the upper and lower sides of glass fibre mesh (4) and it is set up in correspondence with glass fibre mesh (4).Installation mode is simple, need not to punch, and good anti-seepage effect.Glass fibre mesh sets up one can do many things;One is to enhance the strength of geomembrane, two is as the fixed framework of upper layer geogrid and lower layer geogrid.

The application provides a marine clay-geogrid interface cyclic shear stress prediction model construction method, and relates to the technical field of marine engineering. The method comprises the following steps: preparing and assembling a marine clay-geogrid interface shear test sample; after the sample is assembled, a multi-working-condition interface cyclic shear test is carried out to obtain effective original test data; based on the effective original test data, an interface cyclic shear test database is constructed; based on the interface cyclic shear test database, a deep learning prediction model is constructed and trained; the accuracy of the prediction model is verified, the optimal prediction model is screened out, and a marine clay-geogrid interface cyclic shear stress prediction formula is built based on the optimal prediction model. The application can obtain reliable test data under multiple working conditions, accurately depict the shear stress evolution law by constructing a CNN-BiLSTM model, build an engineering usable prediction formula, and provide reliable support for the design and safety evaluation of marine engineering reinforced structures.

The utility model discloses a kind of geogrid composite soft drains, including geogrid composite assembly, the top of geogrid composite assembly is equipped with multiple ballast structure, ballast structure is composed of concrete block, connecting assembly and connecting cloth belt, the connecting assembly includes vertical rod, the top of vertical rod is fixedly connected with lifting ring, the bottom of vertical rod is fixedly connected with the connecting tendon of cross shape, the outside of multiple ends of connecting tendon is fixedly connected with inner connecting frame, the top of inner connecting frame is fixedly connected with multiple connecting rods, concrete block is poured between multiple connecting rods, inner connecting frame, connecting tendon, the inside between multiple connecting rods is fixedly connected with outer connecting frame. The utility model is by connecting cloth belt setting at the outside of concrete block, then connecting cloth belt is connected with geogrid composite assembly sewing, to facilitate ballast structure and soft drain connection, improve the installation use effect of soft drain.

This invention discloses a method for forming a slipform for U-shaped canal lining, specifically relating to the field of canal construction technology in collapsible loess areas. The method includes: layered stabilization and compaction based on the loess collapsibility coefficient, followed by backfilling with geogrids and lime-modified soil; spraying an interface curing material onto the soil mold surface to form a cured layer; differentiated reinforcement based on the collapsibility level, employing a segmented skip-casting method, and using alternating high-frequency low-amplitude and low-frequency high-amplitude vibration modes for lining; installing a flexible support device to provide lateral support and simultaneous moisture retention for the lining; covering with composite curing felt for negative pressure gradient curing, and precisely controlling the timing of joint cutting based on the concrete maturity. This invention, through systematic control of soil mold stabilization, lining crack prevention, and intelligent curing, effectively solves the problems of soil mold collapse and deformation and lining cracking in collapsible loess areas, significantly improving the construction quality and durability of canal linings.

This utility model relates to the field of building construction technology, and in particular to a combined loess low slope support structure based on H-beam micropiles. It includes a slope body, geogrid, anchor bolt assembly, and H-beam piles. The geogrid is laid on the inner wall of the slope body. The anchor bolt assembly includes inserts inserted into the inner wall of the slope body, with support plates fixed to the ends of the inserts. The H-beam piles are respectively inserted into the inner bottom of the slope body. Compared with traditional loess low slope support structures, this utility model improves the overall stability of the slope through the combination of geogrid, anchor bolt assembly, H-beam piles, and channel steel. The combination of a buffer assembly and a dense mesh net, with an open top, allows the dense mesh net to catch any soil collapses. The damper and spring work together to reduce the impact force on the dense mesh net, improving the stability of soil collection and thus reducing the amount of soil sliding in the foundation pit, improving the safety of foundation pit construction.

The utility model relates to a kind of geogrid connecting assemblies, including grid main body, further including connecting assembly, connecting assembly includes limit plate and limit piece, the right side surface of grid main body is symmetrically equipped with limit plate, and the limit plate left end is fixedly connected grid main body, and the upper side surface of rear side is equipped with clamping groove;The limit piece includes U-shaped groove and connecting plate, U-shaped groove is opened on the left side surface of grid main body, and the inside of the front and rear of U-shaped groove is symmetrically equipped with connecting plate, and connecting plate is slidably arranged in U-shaped groove, and the opposite end of two connecting plates is connected with clamping plate, and each clamping plate is matched with clamping groove;U-shaped groove is equipped with driving piece for driving two connecting plates to move relatively or oppositely;The two limit plates of left side grid main body are inserted into the front and rear of U-shaped groove of right side adjacent grid main body, and the clamping plate of the front and rear of U-shaped groove is inserted into the clamping groove on two limit plates respectively.The utility model solves the problem of inconvenient connection between adjacent geogrids.

The utility model relates to geogrid tensile technical field discloses a geogrid tensile test device, including base, stretching device, woodworking grid, the base slides and has the stretching device, the woodworking grid sets up on the stretching device, and the stretching device is by drive arrangement drive, the base is equipped with firm component, sliding component, cleaning component, and the firm component establishes on the stretching device, and the sliding component establishes in the base one side end, and the cleaning component sets up in the base bottom end, the utility model discloses through setting firm component, utilize the clamping structure of firm boss and clamping boss, cooperate the support fixed of firm seat, can with geogrid steady clamping on the stretching device, through the cooperation of the lead screw and the sleeve joint ring of sliding component, can drive fixed link stable movement, and the cleaning brush of its top can clean geogrid, the cleaning cotton of cleaning component can sweep into the cleaning hopper with the fixed link movement, avoids the sundries influence sample installation accuracy or wear and tear grid.

The utility model relates to the technical field of geogrid, specifically disclose a fixed subassembly and geogrid, include: install a plurality of fixed plate no.

The utility model discloses a topography landscape structure for terrace garden planting afforestation is applied to, including parapet, floor layer, support column, stainless steel sheet, geogrid, planting soil, ground cover afforestation, the floor layer top is provided with support column, the support column top fixed connection stainless steel sheet, the stainless steel sheet top is provided with geogrid, and the geogrid top fills and lays planting soil, and this structure can solve the load -bearing problem that terrace garden, aerial garden's planting topography landscape faces, reach the natural planting effect of similar ground garden to have undulating slope topography through special structure, through the support column of adjustable height, can according to design demand flexible adjustment slope height, improved the flexibility and adaptability of topography landscape.

This invention discloses an embankment structure and construction method reinforced by geogrid and EICP, belonging to the field of embankment structure technology. It includes: a road base course, an embankment bearing layer, and a natural soil foundation layer. The natural soil foundation layer serves as the structural support for the embankment and is located at the bottom layer. The road base course bears the upper traffic load and evenly transfers it to the lower embankment bearing layer. The embankment bearing layer bears the upper load transferred from the road base course. This invention improves engineering performance through multi-layered synergistic effects. The core reinforcement layer adopts an innovative spatial grid structure, composed of prefabricated geogrids, obliquely arranged geogrid supports, and rigid load-bearing plates, forming a three-dimensional force transmission network. This overcomes the limitations of traditional reinforcement methods, achieving multi-directional load transfer and uniform distribution. Furthermore, the geogrid supports are arranged at a specific angle, ensuring structural rigidity while avoiding stress concentration.

This invention discloses a three-dimensional network slope protection structure that integrates multi-layer geogrids with deep-rooted plant roots. It comprises several layers of geogrids, deep-rooted plants, short anchors, and perforated anchors. The structure includes: laying sparsely spaced geogrids in layers within the slope; vertically connecting and anchoring adjacent geogrid layers via perforated anchors, which serve both mechanical anchoring and nutrient delivery to the plants; and providing a permeable membrane with pre-defined pore sizes at the bottom openings to induce nutrient-rich growth in the deep-rooted plants; the deep-rooted plant roots grow vertically into the slope and integrate tightly with the three-dimensional geogrid reinforcement system; the deep-rooted plant roots and the multi-layered geogrids together form a three-dimensional synergistic multi-network structure. This invention's three-dimensional network structure, integrating multi-layered geogrids with deep-rooted plant roots, significantly improves the overall stability of steep slopes with only sparse geogrid installation, offering advantages such as structural stability, environmental friendliness, and cost-effectiveness.

This invention relates to the technical field of landfill seepage prevention and diversion engineering, and discloses a method for layered protection excavation construction of landfill seepage walls, including: S1, pre-construction pretreatment; S2, layered dewatering operation; S3, layered and segmented excavation; S4, reinforcement cage installation and filter layer filling; S5, drainage system connection; S6, backfilling and sealing treatment; S7, full-process monitoring. This invention achieves safe and efficient construction of seepage walls through an integrated process of pre-treatment, layered and segmented excavation, dynamic protection, and simultaneous molding. It adopts a layered construction mode of upper-layer sloping excavation and lower-layer trenching using a long-arm excavator, combined with reinforcement cage geogrid wall protection, real-time gas monitoring, and dynamic dewatering technology. Furthermore, through modular installation of the reinforcement cage and layered filter material filling process, it ensures the structural integrity and drainage effectiveness of the seepage wall. The construction process is standardized, safe, and controllable, and is suitable for the construction of seepage walls in various types of landfills.

This invention relates to a flexible ecological reinforced retaining wall with heavy-duty galvanized steel mesh and its construction method, comprising the following steps: setting up an L-shaped steel mesh panel and a connecting mesh panel on the foundation and connecting them; using a reinforcement tensioner to tension the connecting mesh panel and the geogrid; installing the geogrid at the tail of the connecting mesh panel; backfilling the backfill layer; assembling prefabricated trough blocks into the main body of the diversion channel in the water catchment area behind the wall on the back side of the L-shaped steel mesh panel; laying a road surface layer and a settlement road surface layer, connecting the road surface layer and the settlement road surface layer and waterproofing them. The beneficial effects of this invention are: through the diagonal tie rod triangular support and layered backfilling with geogrid, rapid assembly of the reinforced retaining structure and improved overall stability are achieved; the use of double hooks combined with rotating threads ensures the uniformity and controllability of the reinforcement pretension force; and the combination of a multi-layer composite waterproof sealing structure and a symmetrical steel frame improves the durability of the subgrade structure.

This utility model discloses a geogrid laying machine, including a machine body with movable wheels fixedly installed at the bottom. Two sets of support rollers are symmetrically rotatably connected to the inner sidewall of the machine body. A geogrid roll is placed above the support rollers, and a limiting component is installed above the geogrid roll. The limiting component includes an electric push rod and two connecting columns. The outer wall of the electric push rod is fixedly installed at the top center of the machine body, and a U-shaped bracket is fixedly connected to the drive end of the electric push rod. By placing the geogrid roll for laying directly on the support rollers, the limiting plate aligns with the geogrid roll and limits its position during the extension of the electric push rod, improving the stability of the geogrid roll during the laying process. At the same time, the pressure roller continuously compresses the geogrid roll without manual adjustment, making it convenient to use. The machine body can automatically lay and compress the geogrid during movement, improving the laying efficiency of the geogrid.

The utility model relates to earthwork grid technical field discloses a kind of earthwork grids with reinforcing structure, including grid main body, reinforcing border, reinforcing border is fixedly arranged in the four side end of grid main body;Grid main body is provided with grid assembly, plug-in assembly, fixed component, grid assembly is set on grid main body, plug-in assembly is set on reinforcing border, fixed component is set in the bottom end of grid main body;The utility model is mounted by the installation of first grid plate and second grid plate in grid assembly, cooperates the connection of first reinforcing frame and second reinforcing frame, and the connection stability between grid plate is enhanced, the precision and firmness of grid and external structure plug-in are improved by the adaptive joint of plug-in male rod and plug-in recess in plug-in assembly, and the cooperation of joint male rod and joint recess;Through the fixed rod in fixed component, and the protruding head of fixed rod bottom end and the oblique protruding head of four sides, the contact area and the grip force with soil are increased.

The application relates to a roadbed reinforcing structure for municipal roads, which comprises a geogrid for laying on the surface of the roadbed, the geogrid is provided with a gap slot arranged in sequence and at intervals; and a blocking seat arranged on one side of the geogrid, the side of the blocking seat away from the geogrid is provided with a lifting plate arranged in the lifting direction of the lifting plate, the blocking seat is screw-connected with an adjusting rod arranged along the lifting direction of the lifting plate, and the adjusting rod is used for driving the lifting plate to lift; the blocking seat is provided with a slot for the geogrid to pass through, the lifting plate is provided with a plurality of plug-in columns arranged in sequence and at intervals, and the plug-in columns are used for respectively penetrating into the corresponding gap slots. The application has the effects of reducing the additional workload during the laying of the geogrid, improving the laying efficiency of the geogrid, and ensuring the stability of the geogrid.

The utility model belongs to road infrastructure auxiliary equipment technical field relates to a steel plastic geogrid with anchor nail can splice, including first geograt through geograt splice part and second geograt link to each other, geograt splice part is fixedly installed with geograt anchoring connecting piece, first geograt is fixedly installed on second geograt through geograt anchoring connecting piece, first geograt and second geograt all array setting have a plurality of steel bar anchoring subassembly. The utility model through steel bar anchoring subassembly and geograt anchor and roadbed close connecting piece, increase the binding force between geograt and roadbed, prevent and treat the uneven settlement road section of roadbed, effectively avoided the relative slip between geograt and roadbed, and geograt anchoring connecting piece makes the splice operation of geograt simple and easy, and the construction personnel can quickly and accurately splice adjacent geograt together, and firmly fixed through geograt anchoring connecting piece, has improved the construction efficiency greatly.