摘要
以南京过江隧道盾构井工程为例,利用ANSYS软件建立工作井有限元模型,分析连续墙水平位移和围檩、支撑的受力。通过有限元法结果与现场监测结果的对比,说明该有限元方法模拟基坑的开挖过程、探讨基坑墙体变形规律的可行性。通过正交试验结果的评定,得到各因子对控制指标影响大小,合理化配置了支护结构的刚度。
ANSYS is used to construct the finite element model of the shield launching of Nanjing sub-river tunnel, realize the step excavation simulation of the foundation pit and obtain horizontal displacement and supporting axial force of the supporting structure. The feasibility of the finite element method, which is used in the excavation and deformation of wall of foundation pit, is proved by comparison with the value of monitoring. By evaluating the results of the experiment, the importance of each factor determining the control index is obtained and the rigid of supporting structure is reasonable allocated.
出处
《建筑技术》
北大核心
2016年第9期832-835,共4页
Architecture Technology
基金
国家自然科学基金青年基金(51508412)
关键词
过江隧道
工作井
支护结构刚度
数值模拟
正交试验
sub-river tunnel
working shaft
supporting structural rigid
numerical simulation
orthogonal design
