SMW桩+内支护对软土地区深基坑开挖地表沉降及水平位移的影响研究
Study on the Influence of SMW Pile and Internal Support on Surface Settlement and Horizontal Displacement of Deep Excavation in Soft Soil Areas
钱志勇1
作者信息
- 1. 漳州圆山发展有限公司,福建 漳州 363000
- 折叠
摘要
文中以漳州高新区某基坑工程为例,基于软土地区深基坑开挖中SMW桩+内支护结构对地表沉降及基坑水平位移的影响进行分析.结果表明,不同监测点的SMW桩+内支护在2023 年6 月的地表沉降最大,最大沉降分别为20、21、21、22、22 mm,较2023 年5 月地表沉降分别增加 11.11%、31.25%、10.52%、10.0%、15.78%.水泥搅拌桩支护基坑的水平位移较 SMW桩+内支护增加7.91%.数值模拟与现场试验的变化规律一致,两者数值相差较小.
Abstract
Taking a foundation pit project in Zhangzhou High-tech Zone as an example,this paper analyzes the influence of SMW pile+inter-nal support on the surface settlement and horizontal displacement of deep foundation pit excavation in soft soil area.The results show that the surface settlement of SMW pile+internal support at different monitoring points is the largest in June 2023,and the maximum settlement is 20、21、21、22、22 mm,respectively.Compared with May 2023,the land surface settlement increased by 11.11%、31.25%、10.52%、10.0%and 15.78%,respectively.The horizontal displacement of cement mixing pile supporting foundation pit is increased by 7.91%compared with SMW pile+inner support.The variation rules of numerical simulation and field test are consistent,and the difference between the two values is small.
关键词
软土地区/SMW桩/内支护/深基坑/地表沉降Key words
Soft soil area/SMW pile/Internal support/Deep foundation pit/Surface settlement引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据