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Geosynthetics: Cleanup Tools

by Gregory Richardson, Corporate Consultant; Soil & Material Engrs., Inc., 1903 Harrison Ave., Cary, NC 27511,
John A. Bove, Manager; Soil & Material Engrs., Inc., Cincinnati, OH,


Serial Information: Civil Engineering—ASCE, 1988, Vol. 58, Issue 8, Pg. 40-42


Document Type: Feature article

Abstract:

In addition to their use in liners and drainage systems for new landfills, geosynthetics can be used in environmental remediation projects. In an early example, contaminated muck was removed from an Ohio pond that had been polluted with diesel fuel. A geotextile spread over the remaining muck was consolidated by surcharging with 2 ft of sand placed over the textile. This cover has remained intact since 1983. For capping a New Jersey landfill, a bonded membrane geotextile prevented a 1 ft layer of soil from sliding off the steep slope, reducing the need for an expensive layer of clay. Along the Ohio River, a geotextile-reinforced earth wall serves as the core of a dike to keep floodwaters away from slag heaps at a major steel mill. The hydraulic barrier is a membrane protected by nonwoven fabric attached to the back wall. This is the first such design approved by both Kentucky and Region 4 EPA offices.

Subject Headings: Geosynthetics | Walls | Pollution | Membranes | Layered soils | Landfills | Fabrics

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