摘要
上软下硬地层造成盾构施工风险增加,引起地表沉降增大。文章以南京软硬不均地层盾构施工为工程背景,通过分析盾构掘进过程中开挖面的稳定性及相关施工参数的规律,提出了复合地层中适宜的盾构掘进模式及辅助措施,地表沉降分析验证了该施工方法的可行性和可靠性。
Considering that upper-soft lower-hard strata may increase construction risks and cause ground settlement during shield tunnelling, and using the unhomogeneous strata in Nanjing as an example, this paper analyzes the stability of the working face and relevant construction parameters during tunnelling, and then proposes suitable tunnelling modes and auxiliary measures.
出处
《现代隧道技术》
EI
CSCD
北大核心
2017年第1期204-208,共5页
Modern Tunnelling Technology
关键词
上软下硬地层
盾构
掘进模式
突变准则
试验法
Upper-soft lower-hard strata
Shield
Tunnelling mode
Abrupt change criterion
Test method