[1]雷东多,范 瑛,田浩源. 不同围压下硬脆性岩石的强度演化特征研究[J].湖北工业大学学报,2021,(5):104-107.
　LEI Dongduo,FAN Ying,TIAN Haoyuan. Study on the Strength Evolution Characteristics of Hard and Brittle Rocks under Different Confining Pressures[J].,2021,(5):104-107.
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 不同围压下硬脆性岩石的强度演化特征研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2021年第5期
页码:
104-107
栏目:
湖北工业大学学报
出版日期:
2021-10-31

文章信息/Info

Title:
 Study on the Strength Evolution Characteristics of Hard and Brittle Rocks under Different Confining Pressures
文章编号:
1003-4684(2021)05-0104-04
作者:
 雷东多1;  范 瑛1;  田浩源2
1 湖北工业大学土木建筑与环境学院， 湖北 武汉 430068；
2 中冶集团武汉勘察研究院有限公司， 湖北 武汉 430080
Author(s):
LEI Dongduo1;  FAN Ying1;  TIAN Haoyuan2
 School of Civil Engin.,Architecture and Environment, Hubei Univ. of Tech.,Wuhan 430068,China
关键词:
 ; 大理岩;  单轴压缩试验;  三轴压缩试验;  应力-应变特征;  强度参数特征;  损伤演化特征
Keywords:
 ; marble;  uniaxial compression test;  triaxial compression test;  stress-strain characteristics;  strength parameter characteristics;  damage evolution characteristics
分类号:
TU45
文献标志码:
A
摘要:
 选取锦屏水电站大理岩为研究对象，对大理岩进行单轴压缩试验以及常规三轴压缩试验，研究大理岩在不同围压下的应力-应变特征、强度参数特征以及损伤演化特征。试验表明：1) 围压的增大，可以提升岩石的强度，使岩石从脆性破坏转为延性破坏;2) 试件在加载过程中，屈服阶段的粘聚力c小于弹性阶段，内摩擦角φ大于弹性阶段;3) 围压较大的试件，其损伤较小。
Abstract:
 The marble of Jinping Hydropower Station is selected as the research object, and uniaxial compression test and conventional triaxial compression test are performed on the marble to study the stress-strain characteristics, strength parameter characteristics and damage evolution characteristics of the marble under different confining pressures. The test shows that the increase of the confining pressure can increase the strength of the rock and turn the rock from brittle failure to ductile failure. During the loading process of the specimen, the cohesive force in the yield stage is smaller than in the elastic stage, and the internal friction angle is larger than in the elastic stage. The increase in confining pressure has an inhibitory effect on rock damage.

参考文献/References:

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备注/Memo

备注/Memo:
 ［收稿日期］ 2020-12-31
［第一作者］ 雷东多(1996-)， 男， 河南南阳人，湖北工业大学硕士研究生，研究方向为建筑与土木工程
［通信作者］ 范    瑛(1969-)， 女， 湖北黄冈人，湖北工业大学教授，研究方向为道路与桥梁工程
更新日期/Last Update: 2021-11-01