CAJ | 학술논문

通过Abaqus有限元数值模拟软件建立基坑模型，模拟基坑开挖、支护、回填以及型钢拔除过程，重点研究型钢拔除阶段三种回填材料对水泥土墙变形和周边地面沉降的影响。通过模拟分析，得出结果：回填材料不同，水泥土墙变形和地面沉降曲线不同；全部回填混凝土时，拔桩引起墙体的变形和地面沉降几乎为零；局部回填混凝土时，效果次之，可以较好地起到回填支顶作用；回填材料全部是土时，回填土的弹性模量越大，回填效果越好。
통과Abaqus유한원수치모의연건건립기갱모형，모의기갱개알、지호、회전이급형강발제과정，중점연구형강발제계단삼충회전재료대수니토장변형화주변지면침강적영향。통과모의분석，득출결과：회전재료불동，수니토장변형화지면침강곡선불동；전부회전혼응토시，발장인기장체적변형화지면침강궤호위령；국부회전혼응토시，효과차지，가이교호지기도회전지정작용；회전재료전부시토시，회전토적탄성모량월대，회전효과월호。
In this paper,a pit model is established by Abaqus finite element numerical simulation software to simulate the process of excavation,support,backfill and steel extraction. The paper focuses on the analysis of the effect of three backfill materials on the deformation of cement soil retaining wall and the settlement of surrounding ground surface in the stage of extraction of H type steel. Through the simulation analysis,the following results are obtained. With different backfill mate-rials,deformation curve of cement wall and the settlement curve of ground surface are different. When concrete is the only backfill material,the best effect can be obtained,with deformation of cement soil retaining wall and the settlement of sur-rounding ground surface close to zero. When concrete is partial backfill material,the second best effect can be obtained,with medium backfill roof propping effect. When all the backfill material is soil,the greater the elastic modulus of backfill soil, the better the backfill effect will be.