考虑椭圆度缺陷的盾构管片结构极限承载性能研究

王震,丁智,张霄,周奇辉,张成全

Ultimate bearing capacity of shield segment structures considering ovality imperfection

Zhen WANG,Zhi DING,Xiao ZHANG,Qi-hui ZHOU,Cheng-quan ZHANG

表 1 土体侧压力系数和土体抗力系数[16]

Tab.1 Soil lateral pressure coefficient and soil resistance coefficient[16]

土体 N $ \lambda $ k/(MN·m−3) 极软黏土 [0, 2] [0.65, 0.75] [0, 1.0] 软黏土 [2, 4] [0.55, 0.65] [1.0, 5.0] 中硬黏土 [4, 8] [0.45, 0.55] [5.0, 10.0]