兴安矿深部泵房吸水井硐室群支护研究与应用

Research and application of group support to water pumping well chamber of pumping room in deep mine of Xing'an Mine

随着矿井开采深度的增加,深部软岩硐室群稳定性控制已成为困扰国内外工程界的难题。为了更好地控制大断面硐室群破坏问题,结合鹤岗矿务局兴安矿四水平泵房吸水井大断面硐室群工程实例,通过现场调查和理论分析,提出了兴安矿四水平泵房吸水井大断面硐室群锚网喷+锚索+底角锚杆耦合支护技术,并在工程中得到了验证。

With the mining depth increased,the stability control of the deep soft rock chamber group became a difficult problem in the engineering industry at home and abroad.In order to well control the failure problem of the large cross section chamber group,in combination with the engineering case of the water pumping well large cross section chamber group for the No.4 level pumping room in Xing＇an Mine of Hegang Coal Mining Administration,with the site investigation and theoretical analysis,a bolt/steel mesh/shotcreting ＋ anchor ＋ floor corner bolt coupling support technology was provided for the water pumping well large cross section chamber group at No.4 level pumping room of Xing＇an Mine and the coupling technology was confirmed in the engineering.