隧道岩体稳定性的非线性单元安全系数分析 - 中南大学学报（自然科学版、英文版） 关键字: 隧道；岩体；稳定性；单元安全系数；非线性[gap=1508]Key words: tunnel; rock mass; stability; element safety factor; nonlinear
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On the other side, the proposed method can also consider the influence of the change of stress fields and pore pressure field on the minimum factor of safety by the finite element analysis.
同时，本方法利用有限元法分析的应力和孔隙水压力结果，按有效应力法计算边坡安全系数，可分析施工过程中应力和孔隙水压力变化对边坡最小安全系数的影响。
Based on the experience, the calculated thrusts by the two methods are the same under general design safety factor, indicating that the finite element method to calculate the pile thrust is feasible.
依据经验，在一般桩设计安全系数下，两者计算得出推力一致，表明有限元用于计算桩后推力是可行的。
When the pile design safety factor is small, the anti-slide strength of rock and soil is not fully exerted. The finite element method has some discrepancy with the traditional method.
当滑坡设计安全系数较小时，岩土体抗滑强度未得到充分发挥，有限元与极限分析法有一定差距；
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