隧道施工对地层及建筑物影响的模型试验研究  

Model test study on the influence of tunnel construction on stratum deformation and buildings

作　　者：王云平 Wang Yunping(Capital Construction,Dalian University,Dalian Liaoning 116622,China)

机构地区：[1]大连大学基建处,辽宁大连116622

出　　处：《山西建筑》2023年第16期140-142,共3页Shanxi Architecture

基　　金：大连大学大学生创新创业训练计划项目(202211258486);辽宁省“兴辽英才计划”项目(XLYC1807219)。

摘　　要：通过物理模型试验,分析隧道开挖对地层位移及上覆建筑结构的变形规律。建筑物自重对地表沉降存在影响;平行于隧道开挖方向出现“剪切层”,对桩基产生剪切作用,在位移值最大处极其容易出现裂缝;隧道开挖产生不均匀沉降使得建筑结构重心位置改变,造成结构产生一定倾斜,使得地板应力分布不均,进一步增大不均匀沉降,建筑两端向中间偏移。Adopt physical model test to analyze the deformation law of stratum displacement and overlying building structure induced by tunnel excavation.The Self-weight of buildings affects the surface settlement.The“shear layer”appears parallel to the direction of tunnel excavation,which produces shear action on pile foundation,and cracks are extremely easy to occur at the maximum displacement.The uneven settlement caused by tunnel excavation changes the center of the building structure gravity,causes the structure to tilt to a certain extent,which makes the stress distribution of the floor uneven and further enlarges the uneven settlement.The two ends of the building shift to the middle.

关 键 词：模型试验 地层位移 结构变形 地表沉降 

分 类 号：TU941[建筑科学—建筑技术科学]