Waterproof curtain gap plugging device and process based on microbial mineralization

• Main Authors: DU SONG, ZHAO YUE, MOU ZISHEN, LI JINGJI, DING YAN, SONG SITONG
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2022
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a waterproof curtain gap plugging device and process based on microbial mineralization, and belongs to the technical field of mine water control, the waterproof curtain gap plugging device comprises a cementing liquid pool and a bacterial liquid pool, and the cementing liquid pool and the bacterial liquid pool are both communicated with a multi-channel peristaltic pump through pipelines. According to the method, mineral substances are induced to precipitate cementation particles through the microbe induced calcium carbonate precipitation technology and the mineralization effect in the microbe metabolism process, the technology is applied to waterproof curtain crack plugging, the curtain water plugging capacity can be effectively improved, and the slurry is the microbe suspension liquid and the uric acid and calcium chloride solution; compared with cement and chemical pulp, the slurry is low in viscosity, good in fluidity, strong in permeability and large in diffusion radius, the microb