水工圆形隧洞围岩衬砌摩擦滑动接触的新解法 1)
尹崇林,吕爱钟

A NEW SOLUTION FOR FRICTIONAL SLIP CONTACT BETWEEN SURROUNDING ROCK AND LINING IN A HYDRAULIC CIRCULAR TUNNEL 1)
Yin Chonglin,Lü Aizhong
表 6 改变弹模比值$E_2 / E_1 $ 时不同侧压力系数$\lambda $所确定的阈值$f_r^t $
Table 6 Values of $f_r^t $ for various $E_2 / E_1 $ and $\lambda $