【摘要】 依托辽宁丹东的爱民山隧道,研究了既有邻近矿洞对隧道开挖的影响。基于ANSYS分析的结果表明:矿洞的存在对隧洞竖向位移影响较大、略微增大了地表沉降量、隧道开挖后拱顶和拱脚处的应力集中也有所增大。总体来说,矿洞存在与否对隧道开挖影响不大,可以不考虑邻近矿洞的影响。更多还原

【Abstract】 Based on the Aimin-mountain tunnel in Dandong,Liaoning province,this paper studies the influence of existing adja-cent cave on tunnel excavation.The results based on ANSYS analysis show that the existence of the mine tunnel has a great influ-ence on the vertical displacement of the tunnel,slightly increases the surface settlement,and the stress concentration at the archcrown and arch foot increases after the excavation of the tunnel.Generally speaking,the existence of the tunnel has little influenceon the tunnel excavation,and the influence of the adjacent tunnel can be ignored.更多还原