黑龙江科技大学学报2023，Vol.33Issue(6)：902-908,7.DOI:10.3969/j.issn.2095-7262.2023.06.020
深大基坑的土体试验性能分析及预警体系构建
Analysis of soil test performance of deep and large foundation pit and construction of early warning system
邹波1
作者信息
- 1. 南昌市建设工程综合监督事务中心,南昌 330038
- 折叠
摘要
Abstract
This paper aims to effectively grasp the soil test performance and its warning level.The Study analyzes the soil test performance by shear tests combined with the geological conditions of the foun-dation pit;and analyzes the foundation pit deformation warning according to the limit displacement crite-ria and deformation rate criteria combined with the monitoring data of foundation pit settlement deforma-tion.The results show that along with the increase of pore ratios comes the decreasing characteristic of shear parameters of both structural soil and remolded soil with differences only in reduce amplitude,with the more decrease in cohesion than that in internal friction angle.In the early warning results of founda-tion pit deformation,the early warning levels of different monitoring points are different under different criteria,shown by Level Ⅲ of the early warning levels of DB-07 and DB-23 monitoring points and Level Ⅱ of the early warning levels of DB-09 and DB-21 monitoring points.Based on unfavorable prin-ciple,Level Ⅲ is recommended to be the early warning for the foundation pit.关键词
深基坑/抗剪试验/土体试验性能/极限位移/预警体系Key words
deep foundation pit/shear test/soil test performance/limit displacement/early warn-ing system分类
建筑与水利引用本文复制引用
邹波..深大基坑的土体试验性能分析及预警体系构建[J].黑龙江科技大学学报,2023,33(6):902-908,7.
