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以中国台湾高雄市06地铁车站深基坑工程为例,介绍了该工程场区的工程概况,地质条件以及施工顺序。通过有限元软件Plaxis模拟基坑分步开挖,并将计算结果与实测结果进行比较,两者吻合良好。进一步改变挡土墙,抗弯刚度EI,研究其变形规律。增加挡土墙抗弯刚度可以有效减小其最大位移,最大位移发生深度略微增加,但当EI=1.5×10~6N·m~2时再增加挡土墙抗弯刚度对位移的影响变小,施工中不经济。
Taking the deep foundation pit project of 06 metro station in Kaohsiung, Taiwan as an example, the project overview, geological conditions and construction sequence of the project site area are introduced. The finite element software Plaxis was used to simulate the pit excavation step by step, and the calculated results were compared with the measured results, the two agree well. To further change the retaining wall, bending stiffness EI, to study the deformation law. When the EI = 1.5 × 10 ~ 6N · m ~ 2, the effect of increasing the flexural rigidity of the retaining wall on the displacement will be smaller. The flexural rigidity of the retaining wall can effectively reduce the maximum displacement and the maximum displacement increases slightly. , Construction is not economical.