Study on the Time Dependent Bihavior of Rocks in a Post Failure Region
破坏后区域岩石随时间变化的行为研究
基本信息
- 批准号:02650452
- 负责人:
- 金额:$ 1.02万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1990
- 资助国家:日本
- 起止时间:1990 至 1991
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Main results obtained in this project are following.1. The testing method for rocks in the post failure region has beer! established as follows. Using the displacement controlled triaxial compression testing system, the rock specimen is kept stable just after the failure. Tests for rocks in the post failure region can be applied to the specimens in this condition.2. Time dependent behaviors in the 3 dimensional stress state are represented by the tradisional models developed in the uniaxial stress state, using the normalized differential stress and strain.3. The behavior of rocks in the post failure region can be represent as a continum media to some extent, neglecting the difference of failure mode.4. The behavior of rocks in the post failure region can be represent by the Burger's Model with the slider.5. The residual strength of rocks in the post failure region depends on the strain rate also.6. The creep behavior of rocks in the post failure region can be estimated by Burger's Model with the slider.
本课题取得的主要成果如下:1。破坏后区域岩石的测试方法有啤酒!建立如下。利用位移控制三轴压缩试验系统,岩石试件在破坏后立即保持稳定。在这种情况下,可以对破坏后区域的岩石进行试验。三维应力状态下的时间相关行为用传统的单轴应力状态下的模型来表示,使用归一化的差应力和应变。破坏后区域岩石的性态在一定程度上可以表示为连续介质,忽略了破坏模式的差异。破坏后区域岩石的性态可以用带滑块的Burger模型来表示。破坏后区域岩石的残余强度也与应变率有关。岩石在破坏后区域的蠕变行为可以用带滑块的Burger模型来估算。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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SAITO Toshiaki其他文献
SAITO Toshiaki的其他文献
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