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Mechanical parameters used in the model(Compared with the test results of R. Flamand et al [19] )

Mechanical parameters used in the model(Compared with the test results of R. Flamand et al [19] )

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Fig.5 Full-scale joint shear model
Fig.11 Comparison of experimental results and simulation results
Physico-mechanical parameters of joint specimen
Mechanical parameters used in the model(Compared with the test results...
Mechanical parameters used in the model(compared with the test results...
岩石节理剪切力学特性的非线性理论模型研究
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  • Oct 2022
Goodman 线性剪 切模型进行改进，提出一种更接近实际情况的非线性全量剪切模型，该模型大部分参数均可从试验数据获取，并 能准确描述节理剪切过程中剪切应力与剪切位移之间的非线性关系。借鉴 Saeb 和 Amadei 切向与法向耦合刚度系 数的计算方法，结合提出的非线性全量剪切模型，推导出可以反映节理剪切非线性特性的切向耦合刚度系数表达 式，并建立基于非线性力学行为的节理增量剪切模型，该增量模型可以对节理的切向和法向变形行为同时进行描 述。在常法向应力边界和常法向刚度边界条件下分别对增量剪切模型进行编程求解。将全量模型的计算值与已有 直剪试验结果进行对比分析，两者吻合得很好，验证提出的全量模型的准确性与可靠性。分别考虑常法向刚度和 常法向应力两种边界条件，将增量模型模拟值与已有的试验结果及...
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