CN-122013744-A - Geogrid with X-shaped section structure

CN122013744ACN 122013744 ACN122013744 ACN 122013744ACN-122013744-A

Abstract

The invention provides an geogrid with an X-shaped section structure, which comprises a grid main body, wherein the grid main body comprises longitudinal ribs and transverse ribs, the longitudinal ribs and the transverse ribs are intersected in a longitudinal and transverse mode to form a square grid structure, wing plates are arranged on the cross section of the grid main body and symmetrically arranged at four corner points of the cross section of the grid main body to form the X-shaped section structure, the upper surface and the lower surface of the grid main body form first grooves along the length direction, the left side surface and the right side surface of the grid main body form second grooves along the length direction, and node grooves are formed at the node positions of the grid main body. The ends of the two sections of grid main bodies are stacked together by a certain length, then four-foot supporting legs are arranged at the node grooves, square anchoring blocks of the four-foot supporting legs are embedded into the node grooves, the four-foot supporting legs can be fixed on the grids, the four inverted L-shaped supporting legs of the four-foot supporting legs penetrate through soil at the node downwards, the relative positions of the upper and lower layers of stacked geogrids are further fixed, and the grids at the upper side and the lower side are better fixed with the soil.

Inventors

YANG XUDONG
ZHAO RUIJIANG
LI JUN
TANG YI
JIANG DEHONG
XU HUA
WU YINGJIE
ZHAO JIN
ZHAO YANG
DONG WEIYING
ZHANG FAN

Assignees

招商局公路网络科技控股股份有限公司
招商公路京津塘工程建设管理(天津)有限公司

Dates

Publication Date: 20260512
Application Date: 20260227

Claims (6)

1. The geogrid with the X-shaped section structure is characterized by comprising a grid main body, wherein the grid main body comprises longitudinal ribs and transverse ribs, and the longitudinal ribs and the transverse ribs are intersected in a longitudinal-transverse manner to form a square grid structure; The cross section of the grid main body is provided with wing plates which are symmetrically arranged at four corner points of the cross section of the grid main body to form an X-shaped cross section structure, the upper surface and the lower surface of the grid main body form first grooves along the length direction, the left side surface and the right side surface of the grid main body form second grooves along the length direction, and node grooves are formed at the nodes of the grid main body.
2. The geogrid with an X-shaped section structure according to claim 1, wherein the node grooves are square grooves in overlooking mode, and the node grooves are trapezoidal grooves in section.
3. The geogrid with an X-shaped cross-section structure according to claim 1, wherein the deflection angle of the wing plates relative to the horizontal axis of the cross-section of the geogrid is 30 degrees.
4. The geogrid with the X-shaped section structure according to claim 1, wherein the first groove is a trapezoid groove, the grid main body is horizontally paved and embedded in soil body in use, the first groove is respectively filled with the soil body at the upper part and the lower part of the grid, the soil body is compacted in the first groove, the compaction degree of the soil body is improved, and meanwhile, the trapezoid shape of the first groove provides constraint on the soil body in the groove.
5. The geogrid with the X-shaped section structure according to claim 1, wherein the second grooves are trapezoid grooves, when the geogrid is used, the main body of the geogrid is horizontally paved and embedded into soil, the second grooves are respectively filled with the soil on the left side and the right side of the geogrid, so that the soil is compacted and compacted in the second grooves, the compactness of the soil in the second grooves is improved, the friction force between the soil and the geogrid is increased, and meanwhile, the second grooves form lateral constraint on the soil in the grids formed by the longitudinal ribs and the transverse ribs.
6. The geogrid with the X-shaped section structure according to claim 1, wherein when a plurality of grid bodies are connected, the grid bodies are fixed at the positions of node grooves of the adjacent grid bodies through four legs, each four leg comprises an anchoring block and four legs, each anchoring block is a square block, each leg is of an inverted L shape, the four legs are respectively connected to four corners of each anchoring block, each anchoring block is embedded into the node groove of each grid body, the four inverted L-shaped legs are clamped at the positions of surrounding included angles of the grid body nodes, and the legs are inserted into soil bodies around the grid body nodes.

Description

Geogrid with X-shaped section structure Technical Field The invention belongs to the technical field of geogrids, and particularly relates to an X-shaped section structure geogrid. Background The geogrid is a two-dimensional latticed or three-dimensional latticed grid with a certain height formed by thermoplastic and mould pressing of high polymer materials such as polypropylene, polyethylene and the like, is widely applied to roadbed, dykes and dams, retaining walls, side slopes and soft soil foundation reinforcement, and improves the integrity and safety of a reinforced structure through friction force and lateral constraint between a reinforced body and a soil body. The main geogrid reinforcement structure at present comprises a reinforcement retaining wall, a reinforcement slope, a reinforcement soil roadbed, a reinforcement soil abutment, a reinforcement soil cushion layer and the like, and the geogrid is compacted and arranged in a filling layered mode, so that the structural integrity and the filling shear strength are improved. Currently, the primary geogrid forms include unidirectional grids, bi-directional grids, tri-directional grids, warp knit grids, steel plastic grids, and the like. The geogrid forms adopted at present are longitudinal thickened unidirectional grids, longitudinal and transverse uniform-width bidirectional geogrids, grids made of other materials such as steel plastic grids, warp-knitted grids and the like are longitudinal and transverse uniform-width bidirectional geogrids, longitudinal and transverse tensile strength of the materials can be fully exerted, meanwhile, longitudinal ribs and transverse ribs play a role in restraining and anchoring soil in the grids, and the reinforcing effect on the soil is further improved. In addition, new forms of grids such as three-way grids and multi-way grids are developed at present, and the grids mainly play a role in improving the tensile strength of the grids in different directions on a plane by adding ribs in different directions on the plane. But no matter the one-way grille, the two-way grille or the multi-way grille, the reinforcement and the anchoring are mainly carried out by arranging the rib materials on the grille plane, the effect of improving the pulling resistance is achieved by the mutual friction action of the interface between the rib materials and the soil body, and the reinforcement of the grille to the soil body is mainly carried out by the manners of the interface friction between the rib materials and the soil body, the restraint and the anchoring of the longitudinal rib transverse ribs to the soil body and the like. However, the section form of the prior geogrid is mainly in a regular rectangular strip form, the pulling resistance of the reinforcement is mainly realized through the friction action between the upper surface and the lower surface of the geogrid and soil, the exertion degree of the friction force of the reinforcement-soil interface is far lower than the tensile strength of the reinforcement, and the potential of the reinforcement is not fully exerted. Disclosure of Invention The invention provides an X-shaped section structure geogrid for solving the defects in the prior art. The invention is realized by the following technical scheme: The geogrid with the X-shaped section structure comprises a grid main body, wherein the grid main body comprises longitudinal ribs and transverse ribs, and the longitudinal ribs and the transverse ribs are intersected in a longitudinal-transverse manner to form a square grid structure; The cross section of the grid main body is provided with wing plates which are symmetrically arranged at four corner points of the cross section of the grid main body to form an X-shaped cross section structure, the upper surface and the lower surface of the grid main body form first grooves along the length direction, the left side surface and the right side surface of the grid main body form second grooves along the length direction, and node grooves are formed at the nodes of the grid main body. In the technical scheme, the node grooves are square grooves in overlooking mode, and the cross sections of the node grooves are trapezoidal grooves. In the technical scheme, the deflection angle of the wing plate relative to the horizontal axis of the cross section of the grid is 30 degrees. In the technical scheme, the first groove is a trapezoid groove, when the grid is used, the grid main body is horizontally paved and embedded into soil, the first groove is respectively filled with the soil on the upper portion and the lower portion of the grid, the soil is compacted in the first groove, the soil compactness is improved, meanwhile, the trapezoid shape of the first groove provides constraint for the soil in the groove, and the friction between the rib material and the soil is further improved. In the technical scheme, the second grooves are trapezoid grooves, when the grid is used, the grid