Grid composite for backfill barriers and waste applications
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United States of America Patent
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Jan 11, 1994
Issued Date -
N/A
app pub date -
Mar 23, 1992
filing date -
Dec 6, 1991
priority date (Note) -
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Abstract
A grid composite for protecting men and longwall mining equipment during longwall shield recovery includes a regular polymer geogrid structure formed by biaxially drawing a continuous sheet of select polypropylene material which is heat bonded to a polyester fabric. The grid composite is secured over caving shields of longwall mining equipment during a longwall mining operation. The polymer grid composite is ideal for waste containment structures, backfill barriers, and silt barriers in construction and mining applications. In waste containment and backfill barriers, the grid composite is used to form a containment structure. It principle function is to contain waste material usually consisting of a liquid with some percentage of solids.
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