深井高应力大断面渗水硐室稳定性控制  

Stability Control of High-stress Large-section and Seepage Chamber in Deep Mine

作　　者：张跃 ZHANG Yue(Zaozhuang Mining(Group)Co.,Ltd.,Zaozhuang 277000,China)

机构地区：[1]枣庄矿业(集团)有限责任公司,山东枣庄277000

出　　处：《煤炭技术》2020年第4期13-16,共4页Coal Technology

基　　金：国家自然科学基金项目资助(51174128);教育部新世纪优秀人才支持计划项目资助(NCET-07-0519)。

摘　　要：考察赵楼矿地下950 m某硐室的破坏及修复情况,得出在地应力大、涌水量大以及断面尺寸大的"三大"不利条件下,对水与围岩内矿物成分的相互作用以及高应力所引发的在时间维度上的软岩流变现象必须有所考量,其支护策略应当首先考虑使用锚杆、金属网以及喷砼等方式对围岩进行稳定;其次应当找出硐室围岩的最危险、最不利位置,最后使用锚注及锚索等手段对这些位置予以加强,这样才会在最大程度上实现硐室的稳定。从数值模拟及后续的现场情况而言,这一处理方法是有可取之处的。Investigate the damage and repair situation of a 950 m underground chamber in Zhaolou mine,then draw the following conclusions: Under the "three large" unfavorable conditions of large ground stress,large amount of water inflow and large section size,the interaction between water and mineral components in the surrounding rock and the soft rock rheology in the time dimension caused by high stress must be considered. The support strategy should first consider the use of bolts,metal mesh and sneezing to stabilize the surrounding rock. Secondly,the most dangerous and unfavorable position of the surrounding rock of the diverticulum should be found. Finally,these positions are strengthened by means of anchors and anchors,so that the stability of the diverticulum is maximized. This approach is desirable in terms of numerical simulations and subsequent field conditions.

关 键 词：深井软岩 大断面 渗水 锚注 数值模拟 

分 类 号：TD354[矿业工程—矿井建设]