TY - JOUR
TI - Variation law of water level in water injection drill under the influence of mining in Datong mining area
AU - Du Feng
AU - Gao Yang
AU - Li Zhen-Hua
AU - Wang Wen-Qiang
AU - Li Guo-Sheng
JN - Thermal Science
PY - 2021
VL - 25
IS - 6
SP - 4407
EP - 4414
PT - Article
AB - In view of the variation law of water level in water injection drill between  dou­ble-system layers of hard rock strata in Datong mining zone, the failure  process and mechanism of boreholes during propulsion are analyzed by the  numerical sim­ulation and the test measurement in this paper. After the coal  seam is fully mined, it can be divided into the advanced deformation zone,  the bending deformation zone and the compaction stable zone. Borehole damage  intensifies from top to bottom. The junction of siltstone and sandy mudstone  is a high-risk position. The results are verified by the water level  measurement and the borehole peeping.