地基沉降引发输水盾构隧道复合结构受弯分析

周浙件,范毅雄,方燃,边学成

Foundation settlement-induced bending analysis of composite structures in water-conveying shield tunnels

Zhe-jian ZHOU,Yi-xiong FAN,Ran FANG,Xue-cheng BIAN

表 4 不同弯矩受力状态下复合结构临界状态对应的界限指标值

Tab.4 Boundary index value corresponding to critical state of composite structure under dfferent states of bending moment stress

临界状态 正弯矩受力状态 负弯矩受力状态 ρ/m δj/mm M/(103 kN·m) ρ/m δj/mm M/(103 kN·m) 3) 10 558 0.54 40.05 10 558 0.54 32.84 1) 3 206 2.00 103.49 3 206 2.00 79.75 5) 2 132 3.12 146.79 1 856 3.55 124.92 2) 1 122 6.00 188.24 1 122 6.00 153.99 6) 757 9.00 203.02 757 9.00 166.51 7) 510 — — 465 — — 4) 278 15.20 — 278 15.20 —