软土基坑施工引起邻近既有地铁隧道位移的预测方法
王沛1翟杰群2
Prediction Method of Metro Tunnel Displacement Caused by Adjacent Foundation Pit Excavation in Soft Soil
WANG PeiZHAI Jiequn
-
作者信息:1.同济大学地下建筑与工程系，200092，上海；
2.同济大学建筑设计研究院(集团)有限公司，200092，上海
-
Affiliation:Department of Geo\|technical Engineering, Tongji University, 20092, Shanghai, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2020.08.033
-
中图分类号/CLCN:U456.3+1
-
栏目/Col:研究报告
摘要:
针对上海市典型的工程地质条件以及当地基坑工程中广泛采用的“大小坑”开挖模式，建立大量三维数值模型，计算分析了既有侧向邻近地铁隧道基坑施工时,引起地铁隧道最大位移受基坑开挖规模及基坑与隧道间相对位置关系影响的规律，提出了一种隧道位移实用预测方法。工程实例验证表明，该方法的预测结果是可靠的，可以为邻近基坑工程的地铁隧道保护提供参考。
Abstracts:
According to the typical engineering geological conditions in Shanghai and the “Big and Small Pit” excavation mode widely adopted in local foundation pit projects, a large number of three\|dimensional numerical model is established. The influencing law of the relative position between the foundation pit and the tunnel on the maximum metro tunnel displacement is calculated and analyzed, which often occurs during the construction of metro tunnel foundation pit from nearby the existing side. On this basis, a practical prediction method of tunnel displacement is proposed. The practical engineering cases show that the prediction result of the method is reliable, it can provide reference for the protection of metro tunnel adjacent to the foundation pit.
过刊浏览
资料下载
友情链接