CN218779461U

CN218779461U - Multilayer composite geogrid

Info

Publication number: CN218779461U
Application number: CN202223130071.2U
Authority: CN
Inventors: 张晓鹏; 冯绍伟; 任俊明; 郑耀华; 李秀艳
Original assignee: Tianjin Zhengfan Technology Development Co ltd; CCCC Infrastructure Maintenance Group Co Ltd
Current assignee: Tianjin Zhengfan Technology Development Co ltd; CCCC Infrastructure Maintenance Group Co Ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-03-31
Anticipated expiration: 2032-11-24

Abstract

The utility model discloses a compound geogrid of multilayer, including the grid main part, the grid main part is the spider-web structure that many grid strips crisscross weave the hot melt and form each other, the grid strip comprises first composite bed, second composite bed and third composite bed, first composite bed is located the top of second composite bed, the second composite bed is located the top of third composite bed, first composite bed with the third composite bed is the polypropylene material and makes, the second composite bed is made for modified polypropylene material, modified polypropylene is glass fiber reinforced polypropylene combined material. The utility model provides a current geogrid weave the heat fusion by horizontal grid strip and vertical grid strip crisscross each other and form a plurality of nets, holistic thickness is limited relatively poor with the interconnect nature on earth stone layer, leads to the cross node of geogrid to appear the condition that breaks apart from, the problem that bearing capacity is weak between horizontal grid strip and the vertical grid strip.

Description

Multilayer composite geogrid

Technical Field

The utility model relates to a geogrid technical field specifically is a compound geogrid of multilayer.

Background

Geogrid is a main geosynthetic material, and is a two-dimensional grid-shaped or three-dimensional grid screen grid with a certain height, which is formed by thermoplastic molding or die pressing of high polymer such as polypropylene, polyvinyl chloride and the like, and the geogrid is often used as a rib material of a reinforced earth structure or a rib material of a composite material and the like. Common geogrids are generally formed by connecting fibers together in a weaving mode, are buried in a soil body during the soil body compaction construction process, and improve the friction coefficient inside the soil body through interaction with sand and soil particles contained in the soil body, so that the stability and the structural strength of the soil body are maintained;

the conventional geogrid is formed by mutually interlacing, weaving and thermally welding transverse grid bars and longitudinal grid bars to form a plurality of grids, the integral thickness is limited, the interconnectivity with a soil-rock layer is poor, a thick soil layer cannot be stabilized for a long time, the condition that cross nodes of the geogrid are broken or the transverse grid bars and the longitudinal grid bars are separated is caused, and the pressure bearing capacity is weak.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a compound geogrid of multilayer has solved current geogrid and has woven the heat fusion by horizontal grid strip and vertical grid strip crisscross each other and form a plurality of nets, and holistic thickness is limited relatively poor with the interconnect nature on soil stone layer, can not stabilize thick soil layer for a long time, and the condition that breaks away from appears appearing in the cross node that leads to geogrid fracture or between horizontal grid strip and the vertical grid strip, problem that bearing capacity is weak.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the multi-layer composite geogrid comprises a grid main body, wherein the grid main body is of a cobweb-shaped structure formed by a plurality of grid strips in a mutually staggered weaving mode and a hot melting mode, each grid strip is composed of a first composite layer, a second composite layer and a third composite layer, the first composite layer is located at the top of the second composite layer, and the second composite layer is located at the top of the third composite layer.

Preferably, the first composite layer and the third composite layer are both made of polypropylene materials.

Preferably, the second composite layer is made of a modified polypropylene material, and the modified polypropylene is a glass fiber reinforced polypropylene composite material.

Preferably, the thickness of the grid bars is 5-15mm.

(III) advantageous effects

The utility model provides a compound geogrid of multilayer. The method has the following beneficial effects:

this compound geogrid of multilayer, the grid main part is the spider web structure that many grid strips woven the hot melt each other and form, and then can effectual reinforcing native geogrid's bearing capacity, when a certain position atress, can drive many grid strips pressure-bearing around it simultaneously, and then disperse the power, improve the ability of bearing pressure, to traditional geogrid by horizontal grid strip and vertical grid strip crisscross the weaving each other, its bearing capacity can great reinforcing, and the grid strip comprises first composite bed, second composite bed and third composite bed, first composite bed and third composite bed are polypropylene material and make, the second composite bed is made for modified polypropylene material, modified polypropylene is glass fiber reinforced polypropylene combined material, adopt multilayer composite structure, can further improve native geogrid's intensity, prolong its life.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall side structure of the present invention.

In the figure: 1. a grill main body; 10. grid bars; 101. a first composite layer; 102. a second composite layer; 103. and a third composite layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the first embodiment is as follows: the utility model provides a multilayer composite geogrid, including grid main part 1, grid main part 1 is the spider-web structure that many grid bars 10 woven the hot melt each other and form, can effectual reinforcing this geogrid's bearing capacity, when a certain position atress, can drive many grid bars 10 pressure-bearing around it simultaneously, and then disperse the power, improve the ability of bearing, relative to the traditional geogrid by horizontal grid bar and vertical grid bar woven each other, its bearing capacity can great reinforcing, grid bar 10 comprises first composite bed 101, second composite bed 102 and third composite bed 103, first composite bed 101 is located the top of second composite bed 102, second composite bed 102 is located the top of third composite bed 103, first composite bed 101 and third composite bed 103 are made for the polypropylene material, second composite bed 102 is made for the modified polypropylene material, the modified polypropylene is glass fiber reinforced polypropylene composite, the thickness of grid bar 10 is 5-15mm, adopt multilayer composite structure, can further improve native geogrid's intensity, prolong its life.

The working principle is as follows: grid main part 1 is the spider web structure that many grid bars 10 crisscross weaving hot melt formed, and then can effectual reinforcing native worker grid's bearing capacity, when certain position atress, can drive many grid bars pressure-bearing around it simultaneously, and then disperse the power, improve the ability of bearing pressure, relative traditional geogrid by crisscross weaving each other of horizontal grid bar and vertical grid bar, its bearing capacity can great reinforcing, and grid bar 10 comprises first composite bed 101, second composite bed 102 and third composite bed 103, first composite bed 101 and third composite bed 103 are polypropylene material and make, second composite bed 102 is made for modified polypropylene material, modified polypropylene is glass fiber reinforced polypropylene composite, adopt multilayer composite structure, can further improve native worker grid's intensity, prolong its life.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Claims

1. A multi-layer composite geogrid, comprising a grid body (1), characterized in that: the grid main body (1) is of a cobweb-shaped structure formed by mutually interlacing and weaving and hot melting a plurality of grid strips (10), each grid strip (10) is composed of a first composite layer (101), a second composite layer (102) and a third composite layer (103), the first composite layer (101) is located at the top of the second composite layer (102), and the second composite layer (102) is located at the top of the third composite layer (103).

2. The multi-layer composite geogrid according to claim 1, wherein: the first composite layer (101) and the third composite layer (103) are both made of polypropylene materials.

3. The multi-layer composite geogrid according to claim 1, wherein: the second composite layer (102) is made of a modified polypropylene material, and the modified polypropylene is a glass fiber reinforced polypropylene composite material.

4. A multi-layer composite geogrid according to claim 1, wherein: the thickness of the grid bars (10) is 5-15mm.