兰州市某深基坑锚杆支护开挖过程数值分析  

作　　者：韩贵 赵磊 马宏图 

机构地区：[1]兰州交大设计研究院有限公司,兰州730030

出　　处：《科技创新与应用》2023年第11期64-67,71,共5页Technology Innovation and Application

摘　　要：利用ADINA有限元软件,以兰州市某深基坑开挖及支护工程为案例,对施工全过程进行模拟,分析锚固、未支护和坑顶超载基坑在开挖过程中基坑的位移场、应力场及锚杆拉力的变化规律,结果表明,锚杆能有效限制基坑水平位移,开挖深度和超载增加,锚杆拉力、基坑水平位移增大,其规律可为今后该地区深基坑设计和施工提供经验和依据。Taking the excavation and support engineering of a deep foundation pit in Lanzhou as an example,the whole construction process is simulated using ADINA finite element software,and the variation rules of displacement field,stress field and anchor tension of foundation pit during excavation are analyzed.The results show that anchor can effectively limit the horizontal displacement of foundation pit,increase the excavation depth and overload,and increase the tension of anchor rod and the horizontal displacement of foundation pit.This law can provide experience and basis for the design and construction of deep foundation pit in this area in the future.

关 键 词：ADINA有限元软件 深基坑工程 分步开挖法 锚杆支护 数值分析 

分 类 号：TU753[建筑科学—建筑技术科学]