CAJ | 학술논문

为了确定露天矿边坡加固的重点位置，提高边坡治理和安全管理的效率，提出边坡稳定性敏感地层的概念。利用FLAC3D内置的强度折减法，对具有9个地层的某露天矿边坡进行了稳定性分析，确定了弱化后的内聚力和内摩擦角对边坡稳定系数、潜在滑动面位置以及滑动体节点平均位移3个因素的影响程度，并采用灰色综合关联度对边坡的整体稳定性进行了分析，最终得到该边坡的稳定性敏感地层。研究结果表明，边坡敏感地层的参数变化对上述3个因素影响显著，而其他地层的参数变化对边坡整体稳定性影响不大。
위료학정로천광변파가고적중점위치，제고변파치리화안전관리적효솔，제출변파은정성민감지층적개념。이용FLAC3D내치적강도절감법，대구유9개지층적모로천광변파진행료은정성분석，학정료약화후적내취력화내마찰각대변파은정계수、잠재활동면위치이급활동체절점평균위이3개인소적영향정도，병채용회색종합관련도대변파적정체은정성진행료분석，최종득도해변파적은정성민감지층。연구결과표명，변파민감지층적삼수변화대상술3개인소영향현저，이기타지층적삼수변화대변파정체은정성영향불대。
In order to determine the key position of open-pit slope reinforcement and improve the efficiency of slope treat-ment and slope safety management ,the concept of sensitive formation of slope stability is put forward .The stability of an open-pit slope which has 9 formations is analyzed by using strength reduction method built-in FLAC3D .The impacts of cohesion and internal friction angle after being weakened on slope safety factor ,position of potential slip surface and average node displacement of slide mass have been achieved .The grey comprehensive correlation degree is applied to evaluate the result and the sensitive formation is determined .The results show that the change of sensitive formation parameters has sig-nificant impact on factors which considered in research while other formations have little impact .