摘要
以某地铁车站工程为研究对象,通过midas GTS建立大区域三维渗流模型,研究介绍了大区域压力水头、渗流量以及渗流速度随涨潮时的变化规律,并以此提供水位边界条件建立小区域基坑有限元模型,分析了支护结构、土体受力变形机理以及基坑渗流场分布,以便于估算基坑开挖的抽水量,确定基坑排水设备的尺寸以及指导基坑的降水施工。
In this study,by researching the object of a subway station project and establishing a large-area three-dimensional seepage model based on the MIDAS/GTS,the change rules of pressure head,seepage volume and seepage velocity with rising tide in large areas are analyzed,and a finite element model for foundation pits in small areas is formed based on the water-level boundary conditions obtained thereof.In addition,the supporting structure,the mechanism of soil stress and deformation,as well as the distribution of seepage fields in foundation pits are also analyzed to estimate the pump output extracted for the excavation of foundation pits,so as to determine the dimension of pumping equipment used in foundation pits and guide the dewatering construction in foundation pits.
作者
蒋进波
JIANG Jin-bo(China Railway First Group(Guangzhou)Construction Engineering Co.,Ltd.,511455,Guangzhou,China)
出处
《建筑技术》
2023年第12期1472-1474,共3页
Architecture Technology
关键词
midas
GTS
渗流
有限元
涨潮
降水施工
midas GTS
seepage
finite element
rising tide
dewatering construction
