|
|
|
| Fracture mechanism and response law of high thick and hard strata in Ordos mining area |
| Gao Zhongxiang 1, Qu Zhi 2, Li You 2, Chen Miao 2 |
| 1. Yankuang Energy Group Co., Ltd., Jining 272000, China; 2. Energy and Mining Engineering College of Shandong University of Science and Technology, Qingdao 266590, China |
|
|
|
|
Abstract Grasping the breaking mechanism and breaking response law of high thick hard rock strata plays an important role in the prevention and control of coal mine dynamic disasters. Based on the 2201 and No. 2202 Faces of Yingpanhao Coal Mine, the mechanical model of high-level thick and hard rock breaking is established, and the mechanical formula of high-level thick and hard rock breaking is obtained. The geological data of Yingpanhao Coal Mine are brought into the mechanical model and formula calculation, and the high-level thick and hard rock strata are not broken during the mining of 2201 working face. During the mining of No. 2202 Face, the high thick and hard rock stratum is expected to break within the square range of the double working face, and the whole process of high thick and hard rock stratum breaking is analyzed in detail. By monitoring the large energy events during the mining of No. 2202 Face in Yingpanhao Coal Mine, it is verified that when the No. 2202 Face is mined to the square of the double working face, the high thick and hard rock stratum breaks and releases a lot of energy. The research results of this paper provide scientific guidance for studying the fracture mechanism and regular response of high thick and hard rock strata under similar geological conditions.
|
|
|
|
|
|
| [ 1 ] 蒋金泉，王 普，武泉林，等. 高位硬厚岩层弹性基础边界下破断规律的演化特征[ J ]. 中国矿业大学学报，2016，45（ 3 ）：490 - 499.
[ 2 ] 蒋金泉，张培鹏，聂礼生，等. 高位硬厚岩层破断规律及其动力响应分析[ J ]. 岩石力学与工程学报，2014，33（ 7 ）：1 366 - 1 374.
[ 3 ] 蒋金泉，张培鹏，秦广鹏，等. 高位主关键层破断失稳及微震活动分析[ J ]. 岩土力学，2015，36（ 12 ）：3 567 - 3 575.
[ 4 ] 姜福兴，刘 懿，张益超，等. 采场覆岩的“载荷三带”结构模型及其在防冲领域的应用[ J ]. 岩石力学与工程学报，2016，35（ 12 ）：2 398 - 2 408.
[ 5 ] 张 明，姜福兴，李克庆，等. 基于厚硬关键层破断的地面震动损害边界研究[ J ]. 中国矿业大学学报，2017，46（ 3 ）：514 - 520，536.
[ 6 ] 张 明. 厚硬岩层矿井矿震与冲击复合动力灾害防控研究[ D ]. 北京：北京科技大学，2017.
[ 7 ] 王树立，张开智，蒋金泉，等. 基于矿震活动规律的重复采动高位硬厚岩层冲击机制探讨[ J ]. 岩石力学与工程学报，2016，35（ S2 ）：4 172 - 4 179.
[ 8 ] 王树立，张开智，蒋金泉，等. 超厚高位红层砂岩破断运动与矿震活动规律[ J ]. 采矿与安全工程学报，2016，33（ 6 ）：1 116 - 1 122.
[ 9 ] 何福保，沈亚鹏. 板壳理论[ M ]. 西安：西安交通大学出版社，1993.
[ 10 ] 姜福兴，杨淑华，XUN Luo. 微地震监测揭示的采场围岩空间破裂形态[ J ]. 煤炭学报，2003，28（ 4 ）：357 - 360. |
|
|
|
