...；炭质板岩；非线性蠕变模型；含水损伤；围岩稳定性 [gap=1569]Key words:tunnels; carbonaceous slate; nonlinear creep model; water damage; stability of surrounding rock ...
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建立了软岩的非线性蠕变模型。
提出了有厚度和无厚度地质缺陷的非线性蠕变模型，推导了模拟上述地质缺陷蠕变的有限元增量表达式。
Nonlinear rheological models of thick and zero-thickness structural planes are presented. And incremental expressions of finite element for simulating creep of the structural planes are derived.
文章用盐岩蠕变的非线性有限元法建立了具有倾斜盐岩夹层的地层有限元模型。
Finite element models for formations with inclined saline rock interbeds were set up by use of nonlinear finite element method for saline rock creep deformation.
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