METHOD FOR CONSTRUCTING ARTIFICIAL WATER-CONDUCTING CHANNEL THROUGH PULSE HYDRAULIC FRACTURING OF DRAINAGE BOREHOLES IN ROOF AQUIFER

Ultra-long tunnel sewage disposal, separation and drainage structure suitable for cold regions

Tunnel adaptive lining structure in complex environment and construction method thereof

Draining mesh module and a method of operating a draining mesh in a construction

SHIELDED DRAINING PIPE MESH

Mine dewatering system and method

Method of collecting hydrocarbons using a barrier tunnel

Structure of intermediate wall of three arch excavated tunnel and method for constructing the same

Device and a method for drainage of water from rock caves

Blockage-proof water diversion and drainage devices for highway tunnel construction