| 摘要 |
<p>A hazardous waste containment system for preventing the lateral migration of hazardous fluid substances into the water table, particularly for sites which are located over a fluid impermeable strata (20). The system uses an encircling wall comprising vertical barrier members (3) which sealingly interface (25) with the underlying fluid impermeable strata. The barrier members are slidingly engaged via interlocking male and female appendages (1 & 4), which mate and form a vertically extended chamber (33), in which a fluid impermeable seal (7) is formed. A method for implementing the invention where caving is a problem includes the augured excavation of a series of overlapping, vertical holes (18, 18a) in the soil surrounding the area to be contained, installing the vertical barrier wall in the holes, and sealing the joints formed by each connection and backfilling the holes. Guide boxes (15) are used to position and join adjacent sets of barrier members and prevent caving in of the surrounding soil.</p> |
