Geotextile fabric and method for enhancing soil structure

A geotextile, fabric technology, applied in geotextiles, fabrics, perforated fabrics, etc., can solve problems such as labor and time

Inactive Publication Date: 2007-09-05
SAINT GOBAIN TECHN FABRICS CANADA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the end result of the current cumulative placement of fabric segments is acceptable, the process is laborious and time consuming

Method used

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  • Geotextile fabric and method for enhancing soil structure
  • Geotextile fabric and method for enhancing soil structure
  • Geotextile fabric and method for enhancing soil structure

Examples

Experimental program
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Embodiment Construction

[0020] Referring to FIG. 1 , an earthen structure 10 is shown resting on a suitable natural or artificial foundation 12 . Surface 14 of structure 10 may form an angle with foundation 10 of about 60° to about 90° (as shown). The structure 10 may be of any height and includes one or more reinforcing layers 16 positioned substantially horizontally. The width W of reinforcement layer 16 is typically tens of centimeters (feet) and covers substantially the entire length of surface 14 of structure 10 . For example, a typical 3.0 meter (10 ft) high earth retaining wall structure may include about 2-4 layers of 1.5-1.8 m (5-6 ft) wide reinforcing layers 16 located a few centimeters ( inches) to tens of centimeters (feet).

[0021] FIG. 2 shows a conventional configuration of a conventional geotextile fabric 18 suitable for use as a reinforcement layer in the earthen structure 10 of FIG. 1 . Fabric 18 is a unidirectional fabric. Herein, the term "unidirectional" can be interpreted a...

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Abstract

A unidirectional geotextile fabric (24) for use in reinforcement of earthen retaining walls, embankment, slopes and related structures. The fabric is an open grid of high modulus of elasticity strands (26) extending in the weft direction and strands (28) of comparatively lower modulus of elasticity material extending in the warp direction. The fabric is preferably coated with a curable resinous material of sufficient thickness to protect the glass strands from breaking as the fabric is rolled onto cores and unrolled at the job site. When laying the fabric, a roll of the fabric is placed at one end of the face of the earthen structure being constructed and simply unrolled in a direction generally parallel to the structure's face. Because the high modulus strands of the fabric are the weft strands they extend and inhibit soil movement in a direction substantially perpendicular to the face of the structure.

Description

technical field [0001] This invention relates generally to soil reinforcement fabrics, and in particular to geotextile fabrics for use in earthen structures. Background technique [0002] Geotextile fabrics are generally used to stabilize or reinforce earthen structures such as retaining walls, embankments, slopes, and the like. The prior art includes polyolefins (eg, polypropylene and polyethylene) and polyesters, which are made into flexible mesh sheets. The sheets are stored on rolls so that sheets of different lengths are sequentially cut from the rolls and placed on the construction site, and the high-strength warp threads thereon are generally arranged in a direction perpendicular to the surface of the earthen structure . [0003] Although easy to manufacture and install, polyolefin and polyester mesh are low modulus materials, with polyolefin mesh typically having a Young's modulus of about 10,000 to about 75,000 psi and polyester mesh having a Young's modulus of ab...

Claims

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Application Information

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IPC IPC(8): D03D7/00E02D17/20E02D3/12D03D9/00D03D15/00E02D29/02
CPCD10B2505/20E02D2300/0085D10B2401/061D10B2331/02D10B2101/06D03D15/00D10B2505/204D10B2401/062D03D15/02D03D19/00D03D9/00D03D15/08D10B2331/04E02D29/0241D10B2101/12Y10T428/24D03D15/56D04B1/00
Inventor 马克·基特森
Owner SAINT GOBAIN TECHN FABRICS CANADA
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