%0 Journal Article %T 施工车辆荷载对低路堤软土地基的影响深度分析 %A 孙吉书 %A 梅林健 %A 杨 %A 辉 %J 河北工业大学学报 %D 2018 %R 10.14081/j.cnki.hgdxb.2018.04.017 %X 为了分析施工车辆荷载在低路堤软土地基中的分布规律与影响深度,本文通过预埋在天津滨海新区西 外环高速公路低路堤及软土地基中的动土压力盒,进行了不同工况下的动土压力测试,系统分析了施工车辆 轴载、行车速度对不同深度处动土压力的影响规律,以及轴载、车速对施工车辆作用深度的影响规律,结果 表明,动土压力峰值随着轴载、行车速度的增大而显著增大,随着埋置深度的增大而减小;施工车辆荷载的 影响深度随着轴载、行车速度的增大而显著增大,考虑超载的情况下,施工车辆荷载的影响深度可达3.0m, 需要在低路堤设计中充分考虑.</br>Inordertoinvestigatethedistributionlawandinfluentialdepthofconstructionvehicleloadinlowembank? mentsoftsubsoil,dynamicsoilpressureunderdifferentconditionsusingdynamicearthpressurecellsembeddedinthe lowembankmentandsoftsubsoilofTianjinBinhaiNewAreawestringexpressway.Theinfluentiallawofconstruction vehicleaxleloadsandspeedonthedynamicsoilpressureofdifferentdepthwerestudied.Constructionvehicleaxle loadsandspeedontheinfluentialdepthwerestudied,too.Theresultsshowthatthemaximumdynamicsoilpressure wouldincreasewiththeincreaseofaxleloadandvehiclespeed,anddecreasewiththeincreaseofthedepth.Theinfluen? tialdepthofconstructionvehicleloadwouldincreasesignificantlywiththeincreaseofaxleloadandvehiclespeed.The influentialdepthofconstructionvehicleloadinlowembankmentsoftsubsoilisabout3.0monconsidersoverloading. Theseneedtobefullyconsideredinthelowembankmentdesign. %K 低路堤 %K 车辆荷载 %K 动土压力 %K 影响深度 %K 软土地基< %K /br> %K lowembankment %K vehicleload %K dynamicsoilpressure %K influentialdepth %K softsubsoil %U http://zrxuebao.hebut.edu.cn//oa/darticle.aspx?type=view&id=201804017