US20080101875A1

US20080101875A1 - Geogrid provided with filtration mesh layer for geodetic engineering

Info

Publication number: US20080101875A1
Application number: US11/650,558
Authority: US
Inventors: Tsu-Ming Huang
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-27
Filing date: 2007-01-08
Publication date: 2008-05-01
Also published as: TWM316276U

Abstract

A construction of a geogrid integrated with a mesh used in geodetic engineering includes a reinforcement grid and a web; multiple longitudinal and lateral ribs of the geogrid being synchronously knitted with the web to become an integral part; the appearance of the integral part showing meshes of the geogrid and internally containing geodetic compound materials comprised of the web knitted with the ribs surrounding the web; the solid construction increasing friction resistance of the geodetic compound materials; the grids and multiple openings in different sizes of the web achieving good mutual containing behavior with gravels and sandy soil in different grains to improve mutual agreeable and separation functions between geodetic compound materials and the soil while improving the reinforcement function of the geogrid.

Description

BACKGROUND OF THE INVENTION

(a) Field of the Invention
The present invention is related to a geogrid construction, and more particularly, to one comprised of multiple longitudinal and lateral ribs of the geogrid knitted with a web into an integrated part for the construction of the geogrid to contain solid strength in the form of the web so to increase the strength of the geogrid and improve the sheath strength between the geogrid and earth and stone by preventing earth and stone from penetrating through the mesh.
(b) Description of the Prior Art
The primary function of a geogrid is for reinforcement and can be applied in reinforced retaining wall, slope, embankment, or the area featuring weak and soft geology. However, when the separation of the earth and stone on both sides due to difference in grain size is required at where geogrid is applied, the site will be paved with a geodetic woven fabric or non-fabric before paving the geogrid to achieve the purpose of separation. This work method is not economic nor providing easy work since it consumes too much time and labor and the geodetic woven/non-woven fabric prevents easy meshing with the geogrid thus to compromise the functions of reinforcement and separation otherwise expected from the geogrid.

SUMMARY OF THE INVENTION

The primary purpose of the present invention is to provide an integrated structure of geogrid and web. To achieve the purpose, in the network of the geogrid, ribs are knitted with the web to become an integral part for the mesh of the geogrid to provide reinforcement and separation functions and offer multiple benefits included upgraded work quality and cost saving.
The rough and uneven structure of solid web surface provided by the ribs of the geogrid and the web in the mesh of the geogrid effectively improve a mutually contained yet agreeable mechanism with the earth and stone surrounding the geogrid to further increase the reinforcement results.
The web in the mesh of the geogrid prevents soil containing finer grains from penetrating into the geogrid thus to achieve the purpose of separation those finer grains from the geogrid. Furthermore, the present invention provides better structure since the geogrid and the web are knitted into an integral part to increase its benefits particularly when applied in separation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of a geogrid of the prior art.

FIG. 2 is another schematic view of the geogrid of the prior art.

FIG. 3 is a perspective view of the present invention.

FIG. 3-A is a layout of the present invention taken from FIG. 3.

FIG. 3-B is a magnified view of a local part taken from FIG. 3.

FIG. 4 is a schematic view of a preferred embodiment of the present invention.

FIG. 5 is a layout showing another preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIGS. 3 and 3-A, the present invention is essentially comprised of a structure of geogrid having its longitudinal and lateral ribs knitted with a web. Wherein, in the knitting process, each mesh 5A of a geogrid rib 5 is synchronously knitted with a thin filterable web 51 for the web 51 to define a closed distribution within each mesh 5A. The water permeable web 51 allow water containment W in soil S (or stones) to downwardly permeate and filter through as illustrated in FIG. 4 while preventing soil of smaller grains to downwardly penetrate. Accordingly, the process of pavement of woven or non-woven fabric can be omitted, thus to provide further handling and construction cost reduction.
Now referring to FIG. 4, the roughened geogrid 5 allows a thickness fall H between the web 51 and its abutted rib 5 to significantly form on both sides of the web a distribution of multiple concaves SB one after another. The concave SB receives the soil S (or stones) due to the agreeable structure of the solid grid. Furthermore, concaves may locally compress the web 51 to improve the mechanism of mutual agreement between the web 51 and its rib 5 for further reinforcement while achieving the purpose of mutual containing between the web 51 and its surrounding soil S (or stones).
As illustrated in FIGS. 4 and 5, without affecting the synchronous knitting for the web 51, the pattern and diameter of each of those meshes 5A in different sizes formed among the ribs 51 may vary depending on the work conditions (e.g., a hexagonal mesh 5A as illustrate din FIGS. 3 and 4 or a square mesh 5AA as illustrated in FIG. 5) to achieve the same purposes of mutual agreeable and mutual containing functions between the web and the soil S (or stones).
A geogrid knitted with web of the present invention facilitates the work and allows cost reduction; therefore, an application for a utility patent is duly filed accordingly.

Claims

1. A construction of a reinforcement grid for geodetic engineering knitted with a web into an integral part; the web being related to a water filterable thin film; longitudinal and lateral ribs of the geogrid being synchronously knitted with the web; the web forming a closed distribution among each mesh; and multiple concaves alternatively distributed on both sides of the roughened solid web one by one being defined by thickness fall between the web and its abutted ribs of the geogrid to allow water filtration and improved mutual containing and agreeable compound functions between the web and soil/stones.