Principles and technology of surrounding rock control along the roadway of weak narrow coal pillar in Xinyi Mine
Li Xiang 1,3, Wang Chao 2,3, Tao Guangzhe 3
1. Western Shandong Supervision Branch of Shandong Mine Safety Supervision Bureau, Jining 272000, China;
2. Shandong Bureau of Natural Resources and Planning, Tai’an 271600, China; 3. Shandong University of Science and Technology, Qingdao 266590, China
The safe and smooth flow of coal mine roadway is of great significance for the safe mining of coal resources and the high production and high efficiency production of mines. In view of the problems of two weak structures, prominent roof water surge and severe mining impact in the surrounding rock control of the narrow coal pillars along the narrow coal pillar of Xinyi Mine of Shandong Energy Mining Group, the asymmetric support of the roof high-strength anchor cable was proposed. Comprehensive control measures for the reinforcement of two sets of high-strength anchors and effective waterproofing of the roof were given. The engineering practice showed that the deformation of the roadway along the roadway tended to be stable after about 53 days of the support scheme, which provided a reference for the surrounding rock control of similar roadway.
李 祥1,3，王 超2,3，陶广哲3. 新驿煤矿软弱窄煤柱沿空掘巷围岩控制原理与技术[J]. 煤炭与化工, 2019, 42(8): 13-15.
Li Xiang 1,3, Wang Chao 2,3, Tao Guangzhe 3. Principles and technology of surrounding rock control along the roadway of weak narrow coal pillar in Xinyi Mine. CCI, 2019, 42(8): 13-15.
