路基工程Issue(5)：100-105,6.DOI:10.13379/j.issn.1003-8825.2017.05.22
黏土地层盾构隧道开挖面稳定性的离心模型试验研究
Experimental Study on Centrifuge Model of the Excavation Face Stability of Shield Tunneling in Clay Stratum
摘要
Abstract
Good control of the excavation face stability during shield tunneling could lower the impact on the surrounding environment.The deformation mechanisms and stability analysis of the excavation face in soft clay are still based on experience.Centrifuge model tests are used to study the excavation face stability of shield tunneling in clay stratum in Shanghai.The changes of earth pressures before the excavation face and the relationship between support stress and ground settlements are investigated in the tests.The ultimate support stress value for active and passive deformation and the reference ranges for both situations are suggested.The tests results might hopefully be of great guidance to stabilize the shield excavation face during construction in clay stratum.关键词
开挖面稳定性/离心模型试验/上海黏土/土压力/极限支护应力Key words
excavation face stability/centrifuge model tests/Shanghai clay/earth pressures/ultimate support stress分类
建筑与水利引用本文复制引用
徐佳伟..黏土地层盾构隧道开挖面稳定性的离心模型试验研究[J].路基工程,2017,(5):100-105,6.
