Laboratory Experiment of the Rock Anelastic Strain Recovery Compliances

文献类型： 外文期刊

第一作者： Gao, Lu

作者： Gao, Lu;Wang, Lianjie

作者机构：

关键词： anelastic strain recovery;compliance;uniaxial compressive strength

期刊名称：NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2012), VOLS A AND B

ISSN： 0094-243X

年卷期： 2012 年 1479 卷

页码：

收录情况： SCI

摘要： Anelastic strain recovery (ASR) compliances are the important parameters for the ASR in situ stress measurement method to accurately evaluate the magnitude of the stress. The laboratory experiment of the creep and ASR processes for three types of rocks (sandstone, marble and granite) were performed. The tests were carried out at 50% of the uniaxial compressive strength (UCS). And the ASR compliances of the shear mode Jas(t), the volumetric mode Jav(t) and the ratio of Jas(t) and Jav(t) were obtained, respectively. The experimental result show that both the magnitude and increase rate of the ASR compliance greatly depend on the rock type, and the ratios of Jas(t) and Jav(t) trend to different constant values after enough elapsed time for each type of rock specimen.

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