CAJ | 학술논문

首先分析了单一露天开采逆倾边坡的变形破坏模式、地下开采覆岩变形破坏机理和露井联采逆倾边坡的变形机理,在此基础上,对露井联采逆倾边坡的破坏模式及稳定性定量评价方法进行了研究。研究表明,露井联采逆倾边坡的破坏模式可分为3种类型：滑移型破坏、塌陷型破坏和滑移-塌陷复合型破坏,地下开采的空间位置对边坡的破坏模式及稳定性影响显著,其影响程度受进入塌陷范围内的边坡潜在滑面长度和岩体强度参数弱化程度的控制,据此提出了露井联采逆倾边坡稳定性的极限平衡法,并结合工程实例进行了数值模拟验证。
수선분석료단일로천개채역경변파적변형파배모식、지하개채복암변형파배궤리화로정련채역경변파적변형궤리,재차기출상,대로정련채역경변파적파배모식급은정성정량평개방법진행료연구。연구표명,로정련채역경변파적파배모식가분위3충류형：활이형파배、탑함형파배화활이-탑함복합형파배,지하개채적공간위치대변파적파배모식급은정성영향현저,기영향정도수진입탑함범위내적변파잠재활면장도화암체강도삼수약화정도적공제,거차제출료로정련채역경변파은정성적겁한평형법,병결합공정실례진행료수치모의험증。
How to demonstrate the deformation and failure mode of the slope under combine surface and underground mining and evaluate its stability scientifically is one of the problems that need urgent solutions in mining engineering.First,the deformation and failure mode of the slope under simple surface mining,the deformation and failure mechanism of the overlying strata affected by underground mining and deformation mechanism of the slope under combined surface and underground mining were analyzed,then the failure mode and the stability calculation method of the slope under combined surface and underground mining was studied.It can be shown that the failure modes of the slope under combined surface and underground mining involve three patterns： slipping failure,subsiding failure and slipping-subsiding combined failure,that the failure modes and the stability of the slope under combined surface and underground mining be significantly affected by the underground mining positions and the influence be mainly controlled by the length of the latent slide plane of the slope and the weakening degree of the rock masses in the subsidence range.Finally,a limit equilibrium method to calculate the slope stability under combined surface and underground mining was put forward.Finally,it was proved by the numerical simulation of a project case.