基于矿压显现监测的深部高应力煤巷支护参数优化
Supporting Parameter Optimization for Deep Coal Roadway with High Stress Based on Mine Pressure Monitoring
-
摘要: 基于高家堡煤矿201措施巷围岩变形量大、巷道破坏严重的情况,通过锚杆工作阻力监测、围岩变形监测、围岩松动圈测试等手段,结合巷道围岩现场变形破坏情况,分析了深部高应力煤巷围岩矿压显现特点及支护结构的支护效果。在此基础上,提出了相应的围岩控制对策,并进行了巷道支护参数优化,通过数值模拟方法分析了优化方案的有效性及合理性。Abstract: Based on the situations of serious deformation and damage of 201 coal roadway in Gaojiabao Coal Mine, the characteristics of strata behaviors for surrounding rock in deep high stress coal roadway and the supporting effect of supporting structure are analyzed by means of anchor bolts working resistance monitoring, rock deformation and surrounding rock loose zone as well as combining with the damage of surrounding rock. The control measures of surrounding rock were proposed, and the optimization design of the supporting parameters was established on the basis of monitoring and analysis results, then the validity and rationality of optimization scheme was analyzed through numerical simulation method.
-
-
[1] 何满潮,谢和平,彭苏萍,等. 深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803. [2] 康红普.软岩巷道底鼓的机理及防治[M].北京:煤炭工业出版社,1993. [3] 曹建军,焦金宝,何清,等. 深井沿空巷道围岩失稳机理与稳定性控制[J].煤矿安全,2010,41(2):97. [4] 乔卫国,宋伟杰,林登阁,等. 深部高应力巷道围岩力学特征及稳定性控制技术[J].中国矿业,2015,24(8):92-95. [5] 任志成,杨胜利,孔德中. 深部巷道围岩变形与破坏特征[J].煤矿安全,2014,45(8):224-227. [6] 柏建彪,侯朝炯. 深部巷道围岩控制原理与应用研究[J].中国矿业大学学报,2006,35(2):145-148. [7] 杜献杰,苏学贵,原鸿鹄,等. 基于巷道肩部破坏特征分析的围岩稳定性控制[J].煤矿安全,2015,46(11):62-65. [8] 赵希栋,贾后省,刘洪涛,等. 深井高应力巷道围岩变形特征及控制对策研究[J].煤矿开采,2013,18(5):48-51. [9] 张科学,刘向增,郭坤,等. 采动影响下回采巷道底鼓控制技术[J].煤矿安全,2011,42(7):65-68. [10] 于学馥. 现代工程岩土力学基础[M].北京: 科学出版社,1995.
计量
- 文章访问数: 281
- HTML全文浏览量: 0
- PDF下载量: 0