三轴压缩下砂岩裂隙演化规律研究
发布时间：2019-02-16 14:50
【摘要】：基于恒定围压下砂岩的三轴压缩试验,得到不同围压下的应力应变曲线。认为压缩过程中的体积应变是由基体材料的弹性体积应变和裂隙体积应变组成,通过计算得到裂隙体积应变在压缩过程中各阶段随各应力、应变的变化关系,从而得到裂隙演化规律。
[Abstract]:Based on triaxial compression tests of sandstone under constant confining pressure, the stress-strain curves under different confining pressures are obtained. It is considered that the volume strain in the compression process is composed of elastic volume strain and fracture volume strain of the matrix material. The variation of the fracture volume strain with the stress and strain during the compression process is obtained by calculation. Thus, the law of fracture evolution is obtained.
【作者单位】： 中国矿业大学(北京)资源与安全工程学院;
【基金】：国家自然科学基金(50904071;51274207)
【分类号】：TD313
本文编号：2424554
[Abstract]:Based on triaxial compression tests of sandstone under constant confining pressure, the stress-strain curves under different confining pressures are obtained. It is considered that the volume strain in the compression process is composed of elastic volume strain and fracture volume strain of the matrix material. The variation of the fracture volume strain with the stress and strain during the compression process is obtained by calculation. Thus, the law of fracture evolution is obtained.
【作者单位】： 中国矿业大学(北京)资源与安全工程学院;
【基金】：国家自然科学基金(50904071;51274207)
【分类号】：TD313
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