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利用损伤力学的方法,建立岩体在节理损伤情况下的物理方程。与损伤因子对应,引入修复因子的概念,建立岩体修复物理方程。结果表明:节理岩体性质的修复因子与节理岩体的损伤程度D以及注浆充填率λ有关;D和λ越大,节理岩体性质的修复因子也越大。通过理论计算得到了节理岩体损伤和能考虑加固修复效应的单元安全系数Fs,并建立了相应的数值计算程序,将结果与FLAC3D的结果进行对比,验证了其正确性,可进一步为岩体整体稳定情况作出评判,具有一定工程参考价值。
Using the method of damage mechanics, the physical equations of the rock mass under joint damage are established. Corresponding to the damage factor, the concept of restoration factor is introduced to establish the physical equation of rock mass restoration. The results show that the repair factor of the jointed rock mass is related to the degree of damage of the jointed rock mass D and the grouting filling rate λ. The larger the D and λ, the larger the repair factor of the jointed rock mass. The unit safety factor Fs of jointed rock mass damage and reinforcement and restoration can be calculated theoretically and a corresponding numerical calculation program is established. The result is compared with the result of FLAC3D to verify the correctness of the rock mass. The overall stability of the judge, with some engineering reference value.