|
|
|
| Fault water exploration and water disaster prevention and control technology for roadway excavation in Xin 'an Coal Mine |
| Liu Lin1, Sheng Xingwei2, Niu Ning1 |
1. Shandong Energy Zaozhuang Mining Group Xin 'an Coal Industry Co., Ltd., Jining 277642, China;
2. Linxian Jinyuan Coal Mine Co., Ltd., Lvliang 033299, China |
|
|
|
|
Abstract Fault is one of the main factors of mine roof accident and water outburst disaster, which seriously affects the safe and efficient production of coal mine. In order to solve the problem of fault water disaster, taking No.316 mining area of Xin 'an Coal Industry Co., Ltd. ( referred to as Xin 'an Coal Mine ) of Zaozhuang Mining Group as the engineering background, theoretical analysis, numerical simulation and other methods were used to study the concentrated track roadway and concentrated belt roadway passing through F1 fault in No.316 mining area by means of transient electromagnetic method, in-seam seismic exploration, grouting reinforcement and coring verification. The results showed that the roof and floor strata in front of the centralized track roadway and the centralized belt roadway in No.316 mining area were relatively weak in water abundance, and it was found that the F1 fault did not contain (conduct) water through drilling exploration. The existence of F1 fault had a great influence on the stability of surrounding rock in roadway excavation, which could lead to obvious roof subsidence and floor heave, and the failure depth of surrounding rock in roadway was obviously larger than that in normal stratum. Through grouting reinforcement, the geological property modification of F1 fault was realized, and the problem of roadway excavation conducting fourteen limestone and Ordovician limestone aquifers was solved.
|
|
|
|
|
|
| [ 1 ] 何满潮,武毅艺,高玉兵,等. 深部采矿岩石力学进展[ J ]. 煤炭学报,2024,49( 1 ):75 - 99.
[ 2 ] 黄存捍. 采动断层突水机理研究[ D ]. 长沙:中南大学,2010.
[ 3 ] 常江浩. 煤矿富水区矿井瞬变电磁响应三维数值模拟及应用[ D ]. 徐州:中国矿业大学出版社,2017.
[ 4 ] 赵海陆,田 蕾,陆斌法,等. 双鸭山煤田安泰煤矿DF27断层富(导)水性探测研究[ J ]. 中国煤炭地质,2015,27( 12 ):36 - 40.
[ 5 ] 郭元欣,邓书军. 义安煤矿F_(29)断层富水性研究[ J ]. 煤炭技术,2015,34( 8 ):181 - 183.
[ 6 ] 孟庆彬,韩立军,齐 彪,等. 复杂地质条件下巷道过断层关键技术研究及应用[ J ]. 采矿与安全工程学报,2017,34( 2 ):199 - 207.
[ 7 ] 贾晓亮,崔洪庆,张子敏. 断层端部地应力影响因素数值分析[ J ]. 煤田地质与勘探,2010,38( 4 ):47 - 51.
[ 8 ] 朱文心,胡成果,董 晓. 深部过断层巷道失稳破坏机理及控制技术研究[ J ]. 煤炭技术,2018,37( 3 ):65 - 68.
[ 9 ] 卜万奎,茅献彪. 断层倾角对断层活化及底板突水的影响研究[ J ]. 岩石力学与工程学报,2009,28( 2 ):386 - 394.
[ 10 ] 曹建涛. 复杂煤岩体结构动力失稳预报与控制研究[ D ]. 西安:西安科技大学,2014.
[ 11 ] Yan Shuai, Bai Jianbiao, Li Wenfeng. Deformation mechanism and stability control of roadway along a fault subjected to mining[ J ]. International Journal of Mining Science and Technology, 2012,22( 4 ):547 - 553.
[ 12 ] 高 杰,张自发,梁宁宁. 巷道穿断层破碎带不对称支护技术研究与应用[ J ]. 煤炭工程,2016,48( 9 ):73 - 76,80.
[ 13 ] 蔡美峰,高永涛,李长洪,等. 玲珑金矿主运巷塌陷段锚注加固技术研究[ J ]. 岩土工程学报,1999( 4 ):388 - 391.
[ 14 ] 吕兆海,来兴平,来红祥,等. 大采高工作面穿越断层破碎区预注浆耦合加固实践[ J ]. 西安科技大学学报,2014,34( 6 ):670 - 675.
[ 15 ] 武志龙. 巷道过断层破碎带支护方法实践[ J ]. 江西煤炭科技,2020( 1 ):158 - 159,162. |
|
|
|