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黏土水合物沉积物力学特性及应力应变关系
Authors
张旭辉
王淑云
+3 more
石要红
罗大双
鲁晓兵
Publication date
1 January 2017
Publisher
Abstract
以中国近海某天然气水合物(水合物)区的海底粉质黏土制备水合物沉积物样品,并在土工三轴仪上进行实验,分析其应力应变曲线和破坏应力特性。结果表明:力学常数如破坏应力(应变为15%对应的偏应力)随水合物饱和度的增加而增加,在饱和度约25%时破坏应力产生跳跃,即破坏应力随水合物饱和度的变化可分为两部分,饱和度小于25%时水合物的存在对沉积物破坏应力影响较小,大于25%时影响较大。在水合物饱和度小于45%的范围内,水合物沉积物的应力应变曲线可分为弹性段、屈服段和强化段。文中给出了描述其应力应变曲线的分段函数
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Institute Of Mechanics,Chinese Academy of Sciences
See this paper in CORE
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oai:dspace.imech.ac.cn:311007/...
Last time updated on 25/11/2020
Institute Of Mechanics,Chinese Academy of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.imech.ac.cn:311007/...
Last time updated on 12/02/2018