【摘要】 为研究黏土地区地面超载对地下管道的影响,利用Plaxis软件,对比土体硬化模型(HS模型)和小应变土体硬化模型(HSS模型)计算差异,分析小应变刚度在超载问题中的适用性,并进一步基于HSS模型探究管道埋深、超载范围、距离、循环荷载等因素对管道位移的影响规律.研究结果表明小应变刚度的HSS模型能够更好反映地面超载引起的隧道位移.更多还原

【Abstract】 In order to study the impact of ground overload on underground pipelines,Plaxis software is used to compare the calculation difference between the soil hardening model(HS model)and the small strain soil hardening model(HSS model),analyze the applicability of small strain stiffness in overload problem,and further explore the influence of pipeline depth,overload range,distance and cyclic load on pipeline displacement based on HSS model.The research results show that the HSS model with small strain stiffness can better reflect the tunnel displacement caused by ground overload.更多还原