Constitutive model for soft rocks considering structural healing and decay
Constitutive model for soft rocks considering structural healing and decay
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DOI：
10.1016/j.compgeo.2017.07.003
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发表时间：
2017-11
影响因子：
5.3
通讯作者：
M. Kikumoto;V. Nguyen;H. Yasuhara;K. Kishida
中科院分区：
文献类型：
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作者：
M. Kikumoto;V. Nguyen;H. Yasuhara;K. Kishida
软岩的行为取决于矿物颗粒之间的接触面积和颗粒间胶结物的拉伸强度，通常称为结构。我们通过在恒定有效围压的排水条件下的单调和滑动-保持-滑动三轴试验研究了结构腐烂和愈合对软岩行为的影响。我们在扩展临界状态理论的背景下开发了一种包含结构修复和腐烂的软岩本构模型。该模型通过实验室测试进行了验证，并捕获了软岩的行为，包括愈合和腐烂现象。
The behavior of soft rock depends on the contact area between mineral particles and the tensile strength of the interparticle cementation, which are usually referred to as structures. We investigated the effects of structural decay and healing on the behavior of soft rock through monotonic and slide-hold-slide triaxial tests under the drained condition with constant effective confining pressure. We developed a constitutive model for soft rocks incorporating structural healing and decay in the context of the extended critical state theory. The model was validated via laboratory tests and captured the behavior of soft rock, including the healing and decay phenomena.