摘要
通过盾构施工的现场监测,分析了盾构掘进对周围土体的影响程度;根据土体应力状态变化分析了土体的扰动程度,并提出了应力扰动度的定义,估算了土体孔隙水压力引起土体不排水强度的降低程度;用室内试验方法研究了土体应力状态变化对其力学性质的影响。
The influence of shield tunneling on surround soils is studied through the monitoring in situ. The soil disturbance is analysed by variation of the stress state due to shield tunneling, and the definition of the stress disturbance degree is presented. The mechanism of the ground surface settlement is also studied. The statistical relationship is proposed between mechanical properties of soils and the stress disturbance degree.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第7期1174-1179,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
中国博士后科学基金
教育部留学回国人员启动基金
关键词
隧道工程
盾构
应力扰动度
强度
土体
力学性质
tunneling engineering, shield, stress disturbance degree, strength
