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Double-layer composite geogrid

A geogrid and double-layer composite technology, applied in soil protection, infrastructure engineering, construction, etc., can solve problems such as inability to meet various reinforcement projects, inability to fix sand and prevent seepage, single performance specifications, etc., and achieve good chemical stability Enhanced performance, reinforcement effect, and high anti-seepage coefficient effect

Inactive Publication Date: 2016-09-14
SHANDONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, due to the relatively single performance specifications of domestic geogrids and poor compressive performance, they cannot fix sand and prevent seepage, and cannot meet the needs of various reinforcement projects.

Method used

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Embodiment Construction

[0012] According to the attached figure 1 , HDPE geomembrane (1), double-layer longitudinal grid ribs (3), double-layer transverse grid ribs (4), double-layer diagonal grid ribs (5), and bolt heads (6) constitute the invention The basic unit. Before use, place the HDPE geomembrane (1) in the middle of the double-layer geogrid (2), and set a hole at the overlap of each two grid reinforcement strips. Align the holes, pass the screw (8) through the holes, and connect the double-layer geogrid and HDPE geomembrane bolts together. When in use, the double-layer composite geogrid is placed on the dam, which can prevent sand and water from flowing out of the double-layer composite geogrid, which plays a good anti-seepage effect and increases the compression resistance of the double-layer composite geogrid. ability. The laying steps of the double-layer composite geogrid are the same as the laying steps of the ordinary geogrid. The backfill soil layer exceeds 2 to 3 times the height o...

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Abstract

The invention relates to a double-layer composite geogrid. The double-layer composite geogrid is composed of double-layer longitudinal grating reinforced belts, double-layer transversal grating reinforced belts, double-layer slantwise grating reinforced belts and a middle HDPE geomembrane, wherein a hole position is arranged at the lapped part of each two grating reinforced belts, screws penetrate through the hole positions, and the double-layer geogrid is connected together with the middle HDPE geomembrane through bolts.

Description

technical field [0001] The invention relates to a double-layer composite geogrid. The HDPE geomembrane and the double-layer geogrid are combined to enhance the anti-pressure effect and anti-seepage effect, and is especially suitable for embankment reinforcement and retaining wall projects. Background technique [0002] At present, most of the most widely used geogrids are quadrangular network structures formed by stretching longitudinal grid ribs and transverse grid ribs, which can play a certain role in strengthening soil engineering. However, due to the relatively single performance specifications of domestic geogrids and poor compressive performance, they cannot fix sand and prevent seepage, and cannot meet the needs of various reinforcement projects. Contents of the invention [0003] The invention is a double-layer composite geogrid, which is composed of double-layer longitudinal grid ribs, double-layer transverse grid ribs, double-layer oblique grid ribs and HDPE geo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00
CPCE02D3/005E02D2300/0084
Inventor 王清标唐玲玉谢翡白云胡忠经张军杰孔庆礼徐淑一朱庆凯邵唐砂
Owner SHANDONG UNIV OF SCI & TECH
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