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.