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Testing study on creep properties for gypsum breccias
Author(s): SONG Fei, ZHAO Fa-suo, LI Ya-lan
Pages: 94-
96
Year: 2005
Issue:
3
Journal: HYDROGEOLOGY AND ENGINEERING GEOLOGY
Keyword: 蠕变试验; 非线性; 加速蠕变; 蠕变方程;
Abstract: 对石膏角砾岩进行了单轴、三轴蠕变试验,获得了不同围压下的蠕变曲线.对其蠕变特性进行了综合分析,结果表明,其蠕变具有非线性及加速蠕变特性,而且不同围压对蠕变的影响很大.根据试验结果,按遗传蠕变理论建立了石膏角砾岩的非线性蠕变方程,该方程能描述石膏角砾岩的非线性及加速蠕变特性,通过回归分析,确定了蠕变参数数值.
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