岩土力学2011，Vol.32Issue(1)：165-171,7.
黄土地层盾构隧道受力监测与荷载作用模式的反演分析
Mechanical property testing and back analysis of load models of metro shield tunnel lining in loess strata
摘要
Abstract
Based on the Xi'an metro shield tunnel traversing old loess strata, dynamic tracking measurements of water pressure, earth pressure and structure internal force (axial force and bending moment) are carried out to analyze influences of the shield tail serum injection, cylinder thrust force, soil stress relaxation and water pressure on the distributions and varying laws of segment ring.Combining with field test data of internal force, the distribution mode and value of the load pressure on the segment lining in old loess strata are back analyzed by using orthogonal design method and defining target function.Internal force which are calculated by using optimized design parameters are quite close to measured value in magnitude and distribution.The results show that the analysis method proposed is feasible and reasonable; so it can be used for reference of similar projects.关键词
盾构隧道/黄土地层/现场试验/反演分析/正交试验分类
建筑与水利引用本文复制引用
周济民,何川,方勇,谭准..黄土地层盾构隧道受力监测与荷载作用模式的反演分析[J].岩土力学,2011,32(1):165-171,7.基金项目
国家自然科学基金(No.50925830) （No.50925830）
国家973计划(No.2010CB732105) （No.2010CB732105）
中央高校基本科研业务费专项资金资助(No.2010XS03). （No.2010XS03）
