非稳定渗流基坑变形分析

52RAILWYSURVEYANDDESIGN2007(4)112.03.0kmK2+000mK2+890mK2+890mK3+760mK3+760mK4+275mK4+275mK6+336mK6+336mK6+790mV122K8+060mK8+130m3837m61(430063)53RAILWYSURVEYANDDESIGN2007(4)221.4%3(1-1)h=h(xyt)kxkxySsg+n1/l=12Ss=01-1(1-2)(1-1)44JB1132.5m11.6m800mm22.5m60916mm800600mm()11.5m0.2m800600()24.6m3.1m60938m7m60949.1m6095(1300mm)600mm2m25m254RAILWYSURVEYANDDESIGN2007(4)12109123456789106855RAILWYSURVEYANDDESIGN2007(4)11235123410%[1]....20053[2]...19956[3]...19973[4]DesaiCS.Anumericalprocedureforthree-dimensionaltransientfreesurfaceseepage[J].Adv.WaterResources19839(6):175-181[5]...198812[6]...19888[7]....19915[8]..2007-5-14111214mm4.7mm25.1mm28.7mm35.5mm41.1mm50.2mm61.2mm