Tunneling loose filling karst cave grouting water inrush prevention construction method

• Main Authors: CHEN BIN, CHEN YINGZHOU, TAN DUDU, YANG TAO, LIANG CHAOHENG, LI FU, LIU CHEN, WANG SONG
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a tunneling loose filling karst cave grouting water inrush prevention construction method, which comprises the following steps: dividing the karst cave water-rich property according to different water yields of geophysical prospecting and drilling holes through karst cave water-rich zoning and zoning treatment, and further matching and optimizing slurry according to the water pressure, the water yield, the physical property characteristics and the like in different water-rich areas; therefore, pertinence and definition of grouting work of the water-rich filling karst cave in the karst area are achieved, and the defects that materials are not based on, the thought is not clear, and the treatment effect is not ideal in the past are overcome. The problems that existing karst cave grouting reinforcement grout is uneven in diffusion, not thorough in curing effect and large in flowing water scouring damage amount are solved. 本发明公开了一种隧穿松散充填溶洞注浆防突水施工方法，通过溶洞富水分区和分区治理，根据物探及钻探孔不同出水量划分溶洞富水性，进而根据不同