POROSITY DEPENDENCY ON MECHANICAL PROPERTIES AND PORE-WATER PRESSURE RESPONSE OF SANDSTONE IN TRIAXIAL COMPRESSION

被引：0
|
作者：
Wasantha, P. L. P. [1 ]
Ranjith, P. G. [1 ]
Viete, D. R. [1 ]
机构：
[1] Monash Univ, Dept Civil Engn, Deep Earth Energy Lab, Melbourne, Vic 3800, Australia
来源：
NEW DEVELOPMENT IN ROCK MECHANICS AND ENGINEERING (NDRM2012) | 2013年
基金：
澳大利亚研究理事会;
关键词：
GRAIN-SIZE; DEFORMATION; FRACTURE; TIME;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Undrained triaxial tests performed on sandstone specimens with two different porosities showed that the observed induced pore-water pressure response is quicker in high porous sandstone and the maximum observed induced pore-water pressure is higher compared to that of low porous sandstone. Volumetric strain results showed that the dilation is a significant mechanism only at low confining pressures for both types of sandstone. Within the tested confining pressure range, a considerable difference in the onset of dilatancy relative to the peak differential axial stress was not observed.
引用
收藏
页码：26 / 31
页数：6
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