摘要
本文针对软岩工程中围岩流变大变形问题，以有限变形力学理论为依据，采用更新拖带坐标法编制非线性大变形有限元计算程序，对软岩巷道流变大变形问题进行了数值模拟计算。在计算中，选用了适合描述软岩流变大变形的物性方程，并考虑了锚杆和拱两种支护方式。结果表明，本文采用的理论和计算方法合理，计算程序具有精度高、收敛速度快等优点，展示了良好的应用前景。
in this paper, based on a sound finite deformation theory, an updated co-moving coordinate method is given. Using this method, authors have developed a programme for the large deformation analysis of surrounding rocks in soft rock engineering, and analysed the tunnel of large rheological deformation. In finite element numerical calculations, reasonable constitutive equations for soft rock and supports of a tunnel are taken into consideration. The results of the non-linear large deformation FE analysis indicate that the theories and methods in this paper are reasonable and reliable.
出处
《岩土力学》
EI
CSCD
1995年第2期24-34,共11页
Rock and Soil Mechanics
基金
中国博士后科学基金
煤炭科学基金
关键词
软岩巷道
围岩
岩石变形
有限元
计算法
finite deformation
rheological behaviours of soft rock
finite element
updated co-moving coordinate method
