|
|
|
| Study on the threat degree of water accumulation in overlying goaf of No.15 coal seam mining in Huayang No.2 Mine |
| Liu Hao |
| No.2 mine, Huayang Group Xinneng Co., Ltd., Yangquan 045000, China |
|
|
|
|
Abstract The mining of No.3 coal seam in Huayang No.2 Mine has been completed and a large amount of goaf water has been formed. In order to more accurately grasp its threat to the mining of No.15 coal seam, the floor failure depth of No.3 coal seam and the development height of roof water conduction fracture zone in No.15 coal seam were studied by means of numerical simulation, data collection and field measurement. The regression equation for the floor failure depth of No.3 coal seam and the development height of roof water conduction fracture zone in No.15 coal seam of Huayang No.2 Mine was obtained by linear regression method. The classification standard of goaf water threat degree in No.3 coal seam was given and the zoning map of danger degree was obtained. It was of great significance to predict and prevent the hidden danger of water admage in overlying goaf of No.15 coal seam.
|
|
|
|
|
|
| [ 1 ] 李建龙. 小窑头煤业51304工作面上覆采空区积水估算及治理研究[ J ]. 矿业装备，2022（ 5 ）：164 - 166.
[ 2 ] 张 楠. 慈林山矿上覆采空区积水煤层开采突水危险性评价[ J ]. 煤炭与化工，2022，45（ 7 ）：50 - 53，56.
[ 3 ] 黄 浩. 近距离煤层开采顶板采空区积水防治技术研究[ J ]. 华北科技学院学报，2022，19（ 3 ）：32 - 37. |
|
|
|
