CAJ | 학술논문

针对张小楼煤矿深部大断面切眼围岩变形大、支护体破坏严重问题，通过现场调研和分析，认为在埋深大、高地应力、围岩裂隙发育等条件的影响下，原支护不能适应围岩大变形的特点，巷道关键部位出现破坏，进而削弱支护系统的整体功能。针对这一问题，采用软岩耦合支护思想，对切眼采用锚网-围岩以及锚索-关键部位的耦合支护方式，实现了支护体与围岩在强度、刚度和结构上的耦合，从而达到控制切眼稳定的目的。通过现场实践检测，表明耦合支护对深部高应力大断面巷道能够起到较好的支护效果。
침대장소루매광심부대단면절안위암변형대、지호체파배엄중문제，통과현장조연화분석，인위재매심대、고지응력、위암렬극발육등조건적영향하，원지호불능괄응위암대변형적특점，항도관건부위출현파배，진이삭약지호계통적정체공능。침대저일문제，채용연암우합지호사상，대절안채용묘망-위암이급묘색-관건부위적우합지호방식，실현료지호체여위암재강도、강도화결구상적우합，종이체도공제절안은정적목적。통과현장실천검측，표명우합지호대심부고응력대단면항도능구기도교호적지호효과。
Aiming at the problem of large deformation of surrounding rock and serious deG struction of support body in deep largeGsection openGoff cut in Zhangxiaolou Coal Mine,through field investigation and analysis,it is thought that the original support cant adapt the large deG formation of the surrounding rock under the conditions of deep burial,high ground stress and rock cracks development,for the failure in key position in roadway has weakened the whole funcG tion of the support system.In order to solve the problem,the coupled support method of anchor meshGsurrounding rock and cableGkey position is adopted in the openGoff cut,which realizes the coupling between support body and surrounding rock in strength,stiffness and structure,and the large deformation in openGoff cut is controlled.Field practice results demonstrate that coupled support technology for deep largeGsection roadway with high ground stress is effective.