摘要
针对广东某水资源配置工程盾构始发井深基坑围护结构地下连续墙成槽工效低的情况,结合施工现场水文地质条件、周边环境条件和施工现状条件,对其进行了优化,提出了长短组合的吊脚墙(短墙深度30 m,长墙深度39 m)方案,并采用有限元分析软件MIDAS/GTS进行数值模拟,对基坑开挖工况下吊脚墙和运行工况下内衬墙的受力进行计算分析,经实践检验,验证了吊脚墙方案的可行性,可为后续深基坑围护结构设计施工提供经验。
Aiming at the low efficiency of underground diaphragm wall formation in the deep foundation pit enclosure structure of a water resource allocation project in Guangdong,combined with the hydrogeological conditions of the construction site,the surrounding environmental conditions and the current conditions of the construction,it was optimized,and a combination of long and short footing wall(depth of the short wall is 30m,and depth of the long wall is 39m)was proposed,and numerical simulation was carried out by using the finite element analysis software MIDAS/GTS,and the feasibility of the footing wall program was verified by practical testing.From the calculation and analysis of the footing wall under the excavation condition of the pit,the calculation and analysis related to the lining wall under the operation condition,and the practical test,the feasibility of the footing wall program is verified,and experience is provided for the subsequent design and construction of the deep foundation pit enclosure structure.
作者
郑伟
吴枫琪
ZHENG Wei;WU Fengqi(Guangdong Yuehai Yuexi Water Supply Co.,Ltd.,Zhanjiang 524043,China;Guangdong Construction Engineering Group Co.,Ltd.,Guangzhou 511340,China)
出处
《广东水利水电》
2025年第9期90-94,共5页
Guangdong Water Resources and Hydropower
关键词
深基坑
地下连续墙
结构优化
吊脚墙
deep foundation pit
diaphragm wall
structural optimization
end-suspender wall
