According to the Mohr-Coulomb failure criterion, Yangadopted an upper-bound finite element method combined with rigid translatory moving elements (UBFEM-RTME) to determine the stability of double circular tunnels under surcharge loading in cohesivefrictional soils.

根据 Mohr-Coulomb 破坏准则，Yang 采用上限有限法结合刚 （UBFEM-RTME） 确定双圆隧道在粘摩擦土中附加载荷下的稳定。