Effect of water chemical corrosion on mechanical properties and failure modes of pre-fissured sandstone under uniaxial compression

被引：61
作者：
Gong, Chuan-Gen [1 ,2 ,3 ]
Wang, Wei [1 ,2 ]
Shao, Jian-Fu [1 ,2 ,3 ]
Wang, Ru-Bin [1 ,2 ]
Feng, Xiao-Wei [1 ,2 ]
机构：
[1] Hohai Univ, Coll Civil & Transportat Engn, Nanjing 210098, Peoples R China
[2] Hohai Univ, Key Lab, Minist Educ Geomech & Embankment Engn, Nanjing 210098, Peoples R China
[3] Univ Lille, CNRS, LaMcube, UMR9013, F-59000 Lille, France
来源：
ACTA GEOTECHNICA | 2021年 / 16卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Elastic modulus; Failure mode; Pre-fissured rock; Sandstone; Uniaxial compression strength; Water chemical corrosion; CRACK COALESCENCE; PRECRACKED MARBLE; RED SANDSTONE; BEHAVIOR; FRACTURE; ROCK; STRENGTH; SINGLE; SPECIMENS; SURFACE;
D O I：
10.1007/s11440-020-01071-y
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
In this study, effects of chemical corrosion on mechanical properties of pre-fissured red sandstone samples are investigated. Cylinder samples containing a single fissure are fabricated and immersed in different chemical solutions. Different lengths and orientations of fissure are considered. All the pre-fissures are filled with gypsum. The apparent changes of samples due to chemical reactions are first examined. Uniaxial compression tests are then performed on chemically treated samples. The variations of elastic properties and uniaxial compression strength of tested samples are analyzed in terms of geometrical configuration of pre-fissure and different chemical solutions. Cracking patterns of samples during uniaxial compression tests are also investigated.
引用
收藏
页码：1083 / 1099
页数：17
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