检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]河海大学岩土工程科学研究所,江苏南京210098 [2]上海瀚联建筑设计咨询公司河南分公司,河南郑州450000
出 处:《河北工程大学学报(自然科学版)》2015年第2期40-43,共4页Journal of Hebei University of Engineering:Natural Science Edition
摘 要:以南京市青奥轴线地下交通工程主隧道基坑非对称开挖水平位移监测数据为依据,对水平位移监测值与ABAQUS数值模拟值进行对比分析。得出结论:墙体水平位移首先是悬臂开挖的墙顶向外发生三角形分布的位移,然后随着支撑的架设,墙体发生转动,数值模拟值与实际监测值基本符合;在开挖面附近的土压力,随着墙体高度的增加而增大;在支撑以上部分,模拟值要小于计算值,而在开挖面以下部分,则模拟值大于计算值;随着悬臂段开挖深度的增加,悬臂段最大土压力值也在逐渐增加,墙底土压力值在逐渐减小。In this paper, the Youth Olympic Games in Nanjing underground traffic engineering tunnel axis of the main exeavation pit asymmetric horizontal displacement monitoring data were taken as the basis for horizontal displacement monitoring. The numerical values of the ABAQUS simulation values were analyzed. It was concluded that Wall horizontal displacement occurs firstly at the top of the wall outward displacement of the cantilever excavation triangular distribution, and with the support of the erection, wall rotation occurs. The numerical simulations meet with actual monitored values ; the pres- sure in the soil near the excavation face increases with increasing height of the wall. Above supporting section, the analog value is less than the calculated value ; and in the following part of the excavation face, the analog value is greater than the calculated value ; with the increasing depth of the excavation boom segment, the largest segment cantilever earth pressure is gradually increased, wall subsoil pres- sure value decreases.
关 键 词:非对称基坑监测 ABAQUS 数值模拟 对比分析
分 类 号:U451[建筑科学—桥梁与隧道工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28