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中文摘要：
运用ANSYS有限元应用软件为平台,针对基坑工程的复杂性,用APDL二次开发适合黄土地区的基坑开挖与支护变形分析程序,然后对深基坑开挖与支护变形进行分析及稳定性验算,得到深基坑坑壁侧向位移、坑周围地面的变形、基底的回弹变形.用有限元强度折减技术验算基坑边坡的稳定性.计算结果表明,ANSYS有限元方法在深基坑工程的设计、施工中是有效的评价工具,把有限元强度折减技术引入到深基坑工程中是一种有效的新方法.
英文摘要：
Taking finite element software ANSYS as a platform and aimed at engineering complexity of foundation pit,a deformation analysis program was developed as its secondary development by using APDL,that would be fit to foundation excavation and supporting structure in loess areas.Then the excavation and support deformation were analyzed for deep foundation pit and its stability was checked,so that the lateral displacement of pit wall,ground deformation around the pit,and basement swell were obtained for the deep foundation pit.The stability of pit slope was checked with the technique of finite element strength reduction.It was shown by computation result that the finite element method of ANSYS would be an effective assessment tool for designing and constructing the deep foundation pit and the introduction of finite element strength reduction technique into engineering of deep foundation pit would be an effective and new way.
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