|
|
|
| Failure mode and water outburst prevention and control technology of thick aquiclude floor in deep mining |
| Sun Jian |
| Xingdong Mine,Jizhong Energy Corporatin Ltd, Xingtai 054001, China |
|
|
|
|
Abstract High confined water outburst disaster of thick aquiclude floor in deep mining is a major problem restricting the safe and efficient mining of deep coal seam. In this paper, Xingdong Mine was taken as the research object. According to the change of water outburst and the failure characteristics of thick aquiclude floor in deep mining, the stress disturbance mode acting on the floor was divided into two types : the dynamic load of far-field main roof instability and the static load disturbance mode of near-field abutment pressure. The failure mode of thick aquiclude floor in deep mining was divided into two modes : mining-induced fracture and deep concealed structure of floor and the failure mode of directly connecting Ordovician limestone aquifer through fault. Based on this, the prevention and control technology of water outburst from thick aquiclude floor in deep mining based on ' regional grouting reinforcement + roof cutting and pressure relief ' was constructed. It effectively prevented the occurrence of water outburst from thick aquifuge floor in deep area of Xingdong Mine.
|
|
|
|
|
|
| [ 1 ] 张海君，吴奕枢，王 飞，等. 准格尔煤田龙王沟煤矿特厚煤层综放开采地表沉陷规律[ J ]. 西安科技大学学报，2022，42（ 5 ）：874 - 883.
[ 2 ] 张晓岩，路 鑫. S1306工作面开采沉陷“天-地”协同监测方案研究[ J ]. 煤，2022，31（ 9 ）：55 - 57，73.
[ 3 ] 张海洋，李小萌，孙利辉. 大倾角煤层开采地表沉陷规律研究[ J ]. 煤炭工程，2022，54（ 6 ）：108 - 112.
[ 4 ] 孙镜博. 长春市双阳区长岭煤田多采空区地表沉降变形研究[ D ]. 吉林：吉林大学，2022.
[ 5 ] 屈正一. 邢台矿固体密实充填开采覆岩及地表运移规律研究[ D ]. 邯郸：河北工程大学，2022.
[ 6 ] 谢晓深，侯恩科，王双明，等. 风沙滩地区中深埋厚煤层综采地表移动变形规律实测研究[ J ]. 煤矿安全，2021，52（ 12 ）：199 - 206. |
|
|
|
