Underground water guiding and draining system under impermeable membrane of industrial waste residue storage yard

Abstract

An underground water guiding and draining system under an impermeable membrane of an industrial waste residue storage yard is arranged in a mountain body (20) below a impermeable membrane (10) in a storage yard, and comprises a main guiding-leaking blind ditch (30), a branch guiding-leaking blind ditch (40) and a water guiding blind ditch (50), wherein the main guiding-leaking blind ditch is arranged at the lowest position of a valley, and the length of the main guiding-leaking blind ditch extends to the downstream of the storage yard along the tail end of the storage yard; the branch guiding-leaking blind ditch is arranged by surrounding the storage yard along the hillside surrounding the storage yard, a plurality of leaking water grooves for containing water leaking from the hillside are arranged on a guiding-leaking pipe in the branch guiding-leaking blind ditch, and a water outlet is arranged at one end of the branch guiding-leaking blind ditch positioned at the downstream of the storage yard; and the branch guiding-leaking blind ditch and the main guiding-leaking blind ditch are communicated with each other by a plurality of water guiding blind ditches or solid-wall HDPE (High-Density Polyethylene) water guiding pipes, which are arranged at intervals. The underground water guiding and draining system forms spider net shape under the impermeable membrane of the waste residue storage yard, so that underground water can be drained effectively, the support force on the impermeable membrane caused by underground water can be reduced, the upheaval and cracking of the impermeable membrane can be prevented, so that the completeness of the impermeable membrane can be kept, and the impermeable function of the impermeable membrane can be guaranteed.

Description

technical field [0001] The invention relates to anti-seepage of industrial waste dumps, in particular to an underground water guide and drainage system under the anti-seepage film of industrial waste dumps. Background technique [0002] Build industrial waste dumps in areas with high groundwater levels. If the groundwater level is higher than the bottom of the industrial waste dumps, groundwater will easily seep into the waste dumps through the pores between sand particles, resulting in increased leachate in the site and sewage. The processing capacity is large and the operating cost is high. What is more serious is that the harmful leachate produced by the waste residue flows with the water and causes groundwater pollution. leakage. However, in the construction of anti-seepage industrial waste dumps in areas with high groundwater levels, if the supporting force of groundwater on the membrane is greater than the water pressure on the upper part of the membrane, the anti-see...

AI Technical Summary

Problems solved by technology

[0002] Build industrial waste dumps in areas with high groundwater levels. If the groundwater level is higher than the bottom of the industrial waste dumps, groundwater will easily seep into the waste dumps through the pores between sand particles, resulting in increased leachate in the site and sewage. The processing capacity is large and the operating cost is high. What is more serious is that the harmful leachate produced by the waste residue flows with the water and causes groundwater pollution. leakage

However, in areas with a high groundwater level to build an anti-seepage industrial waste dump, if the groundwater’s supporting force on the membrane is greater than the water pressure on the upper part of the membrane, the anti-seepage membrane will bulge, crack and lose its anti-seepage function.

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