摘要
对于盾构隧道的设计和施工,解析方法预测地表沉降,具有使用简便、物理意义明确的特点。在 Sagaseta 提出的基于由地层损失引起的地表沉降理论基础上,结合工程实际情况,提出了模拟盾构推进过程的三维地层损失模式,并推导了相应的地表位移计算解析公式,对实际工程具有参考价值。
Analytical prediction of tunneling-induced ground movements can be used as guidance during design and construction for its simplicity and definite meaning. Based on elastic deformation theory, a closed-form solution for surface movements due to ground loss, which is derived from supposed 3D tunneling approaching procedure according to real-time engineering conditions considering shield machine deviation, is proposed to predict three-dimensional surface movements in undrained soil. The results show good accordance with actual cases.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2004年第9期1427-1431,共5页
Rock and Soil Mechanics
关键词
地表位移
地层损失
盾构开挖
Deformation
Forecasting
Three dimensional
