CAJ | 학술논문

以思山岭铁矿1500 m超深副井施工为工程背景，概述井壁的结构特征，根据井筒围岩现场的地应力和地下水条件，通过理论计算得出井筒开挖后井壁围岩应力，判断井壁稳定性，在此基础上，应用FLAC3D分析同等地应力条件的开挖过程，得出竖井围岩及支护结构开挖后的位移和应力分布大小和变化规律，对实际工程进行指导并为同类工程提供参考。
이사산령철광1500 m초심부정시공위공정배경，개술정벽적결구특정，근거정통위암현장적지응력화지하수조건，통과이론계산득출정통개알후정벽위암응력，판단정벽은정성，재차기출상，응용FLAC3D분석동등지응력조건적개알과정，득출수정위암급지호결구개알후적위이화응력분포대소화변화규률，대실제공정진행지도병위동류공정제공삼고。
The engineering background is construction of 1 500‐meter‐deep Auxiliary Shaft in Sishan‐ling Iron Ore ,an overview of the wall’s structure features. According to the conditions of the scene of the shaft wall rock stress and groundwater ,calculate the surrounding rock stress of wellbore wall after excavation by theory ,then judge the stability of borehole wall.On the basis of this ,analyzing the same excavation process of in‐situ stress conditions by FLAC3D ,concluding shaft wall rock and supporting structure after excavation of the size of the displacement and stress distribution and change rule ,for practical engineering guidance and provide a reference for similar projects.