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 则，Yang 采用上限有限元法结合刚性平动元 （UBFEM-RTME） 确定双圆隧道在粘性摩擦土载荷下的稳定性。