构造复杂区硐室群围岩失稳机理及控制技术研究  

Instability mechanism and control technology of chamber group surrounding rock in complex structural area

作　　者：王其洲[1] 谢文兵[1] 荆升国[1] 费小保[1] 

机构地区：[1]中国矿业大学矿业工程学院,煤炭资源与安全开采国家重点实验室,江苏徐州221116

出　　处：《采矿与安全工程学报》2014年第2期263-269,共7页Journal of Mining & Safety Engineering

基　　金：煤炭资源与安全开采国家重点实验室自主研究课题基金项目(SKLCRSM08X01)

摘　　要：为了得出构造复杂区硐室群围岩稳定性特征及控制对策,本文以裴沟煤矿42采区泵房硐室群为研究对象,利用地质雷达与钻孔窥视仪探测硐室群围岩松动圈发育情况,运用数值模拟软件FLAC分析了水平构造应力对巷道围岩塑性区分布的影响,以及硐室群结构特点对其自身围岩稳定性影响。在此基础上,针对42采区硐室群围岩岩性特点,提出棚索协同支护与锚网索控底技术,现场工业性试验结果表明,在采用合理支护方案后硐室群维护效果理想。In this paper, to obtain the stability characteristic and control countermeasure of chamber group surrounding rock in complex structural area, taking the chamber group in pump room of No.42 mining district in Peigou Coal Mine as example, the loosen zones of chamber group surrounding rock were detected by geological radar and drilling peep instruments. Additionally, FLAC was used to ana- lyze the influence of horizontal tectonic stress on plastic zone layout of roadway surrounding rock, as well as the influence of chamber group structural characteristic on its own surrounding rock stability. Based on these, the cooperating support of frame and anchor cable, and the bolt-mesh-anchor supporting technology for roadway floor were put forward according to the lithological characteristics of chamber group. The industrial results show that chamber group can be effectively maintained after adopting the rational support scheme.

关 键 词：构造复杂区 硐室群 围岩松动圈 棚索协同支护 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]