摘要
根据节理受剪破坏和受拉破坏的特点，结合断裂力学，推出了节理岩体的损伤张量，编制了节理损伤有限元程序ＴＷＯＤ，进行了开采沉陷的计算机模拟计算，表明岩体中节理的存在使地表移动量增大，且下沉、水平移动曲线不对称。基于模拟数据，给出了下沉系数及水平移动系数与节理迹长、倾角、密度之间的关系式，为实际应用中考虑节理的影响提供了实用程序和方法。
Based on the characteristics of joints failure under the effect of shear stress and tension stress and combining fracture mechanics, the damage tensors of jointed rockmass are discussed and the joint damage finite element program TEOD is developed. The computation shows that the joints in rockmass make ground subsidence increased, and subsidence and horizontal movement unsymmmetric. The formula showing the relation of the subsidence coeffient, horizontal movement coefficient and the trace, angle and density of joints are given. The useful program and method considering joints effect in practical application are provided.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
1996年第4期345-352,共8页
Chinese Journal of Rock Mechanics and Engineering
