摘要
采用 FLAC3 D软件 ,以拟建的广州地铁 3# 线典型车站为例 ,对盾构过站 ,扩挖成站施工引起的地表沉降规律进行了数值模拟 ,研究了不同工况盾构双隧道过站施工对地面带来的影响 ;并在此基础上采取不同加固土体措施情况下 ,模拟了扩挖建站对地面变形的影响程度 .研究结果对盾构直接过站方案是一种技术支持 ,作为盾构过站施工对地表沉降影响预测的方法 ,可为我国盾构法技术的扩大应用提供部分理论依据和参考 .
According to the typical metro\|station of the Guangzhou metro line 3 # to be constructed, the FLAC 3D codes was adopted and the numerical simulation of the ground settlement due to expanding metro\|station on the basis of shield\|constructed tunnels was presented. The influence on ground settlement due to the two\|tunnel shielding construction in different construct methods was also simulated. Finally, the range of the ground settlement as a result of expanding metro\|station was studied when using different reinforcement measures. This investigation is a technique support for constructing the metro\|stations by expanding shielding tunnels directly and provides a method to predict the ground movement. It will also undoubtedly offer theoretical reference for promoting the shielding construction.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2003年第3期236-240,共5页
Journal of China University of Mining & Technology
