某地下车库深基坑支护结构变形监测研究  

Deformation monitoring on support structure of the deep foundation pit of an under- ground garage

作　　者：许凯军[1] 宋艳清[1] 刘云鹏[1] 

机构地区：[1]河北工业大学土木工程学院

出　　处：《建筑与设备》2011年第6期73-75,共3页

摘　　要：对某地下车库深基坑支护结构的位移和内力进行监测研究．获得支护结构位移、内力的分布与变化规律。监测数据表明，支护桩深层水平位移沿深度呈抛物线分布，且先快后缓：墙顸水平位移与基坑周边环境有关；帽梁承受的压力较均匀，仅在外部荷载较大处承受的压力较大。通过分析可知，该地下车库深基坑工程所采用的支护结构及变形控制设计方案是合理的安全的。The monitoring of the displacements and inner forces of the support structure for the deep foundation pit of an underground garage is carried out; the distribution and variational law of the support structure are obtained. The monitoring data show that the horizontal displacement of the support structure distributes likely in a way of a parabolic curve, and develops first quickly and afterwards slowly. The value of the horizontal displacement is related to the surrounding environment. The pressure subjected to by the cap beam is rather homogeneous; the value is larger where the external load is stronger. According to the analy- sis it was found that the design for the support structure of the deep foundation pit of the underground garage is reasonable and safe.

关 键 词：深基坑 支护结构 沉降 监测 

分 类 号：TU470[建筑科学—结构工程]