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

页码：26 / 31

页数：6

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