欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
Based on the nonlinear failure criterion and the upper bound theorem, the modified tangential technique method was proposed to derive the expression of supporting pressure acting on shallow tunnel. Instead of the same stress state, different normal stresses on element boundaries were used. In order to investigate the influence of different factors on supporting pressures, the failure mechanism was established. The solution of supporting pressure, with different parameters, was obtained by optimization theory. The corresponding failure mechanism and numerical results were presented. In comparison with the results using the single tangential technique method, it is found that the proposed method is effective, and the good agreement shows that the present solution of supporting pressure is reliable.
英文摘要：
Based on the nonlinear failure criterion and the upper bound theorem, the modified tangential technique method was proposed to derive the expression of supporting pressure acting on shallow tunnel. Instead of the same stress state, different normal stresses on element boundaries were used. In order to investigate the influence of different factors on supporting pressures, the failure mechanism was established. The solution of supporting pressure, with different parameters, was obtained by optimization theory. The corresponding failure mechanism and numerical results were presented. In comparison with the results using the single tangential technique method, it is found that the proposed method is effective, and the good agreement shows that the present solution of supporting pressure is reliable.
同期刊论文项目
同项目期刊论文
Upper bound solutions of stability factor of shallow tunnels in saturated soil based on strength red
Upper bound limit analysis of roof collapse in shallow tunnels with arbitrary cross sections under c
Analytical solution to rock pressure acting on three shallow tunnels subjected to unsymmetrical load
Upper bound solution for supporting pressure acting on shallow tunnel based on modified tangential t
Upper bound solution of supporting pressure for a shallow square tunnel based on the Hoek-Brown fail
Influences of anisotropy and inhomogeneity on supporting pressure of tunnel face with kinematical ap
Energy analysis of stability on shallow tunnels based on non-associated flow rule and non-linear fai
期刊信息
位置：