上河苑二期深基坑降水及支护方案的探讨  

Discussion on Dewatering and Support Scheme for Deep Foundation Pit of Shangheyuan Phase Ⅱ

作　　者：宋明健[1] 吴章伦[1] 郭焱[1] 周丕健[1] 

机构地区：[1]中国十九冶集团有限公司,成都610031

出　　处：《路基工程》2012年第2期101-104,共4页Subgrade Engineering

摘　　要：上河苑二期深基坑,开挖面大,深度深,且开挖后将形成最大高差约6.3 m的两条孤立土柱带。其降水措施以及支护方案的有效性,直接关系着基坑的安全与稳定,也对后续工程的顺利开展具有重要意义。结合工程地质条件,对该基坑降水方案的分析和计算进行了介绍;选择典型剖面,探讨了不同开挖深度和位置处的支护具体方案;实践验证,该方案满足基坑变形控制的要求。The deep foundation pit of Shangheyuan Phase Ⅱ has large excavation face and depth and two isolated soil column area with the maximum height difference about 6. 3m will be formed after excavation. The effectiveness of dewatering measures and support scheme concerns the safety and stability of the foundation pit directly and means a lot to the following engineering activities. Combined with the geological conditions, the analysis and calculation of the dewatering scheme for the foundation pit are introduced ; selected typical profile section, the specific support schemes with different excavation depth and at different places are discussed. It is demonstrated that the requirement of deformation control for foundation pit is satisfied.

关 键 词：深基坑 降水 支护 方案 

分 类 号：TU463[建筑科学—结构工程]