Study of acoustic emission characteristics and damage equation of coal containing gas

被引：0
|
作者：
Zhao Hong-bao [1 ,2 ]
Yin Guang-zhi [3 ]
机构：
[1] China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Beijing 100083, Peoples R China
[2] China Univ Min & Techonol Beijing, Sch Resources & Safety Engn, Beijing 100083, Peoples R China
[3] Chongqing Univ, Coll Resources & Environm Sci, Chongqing 400030, Peoples R China
来源：
ROCK AND SOIL MECHANICS | 2011年 / 32卷 / 03期
关键词：
acoustic emission; coal containing gas; damage equation; mechanical properties;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Mechanical properties and acoustic emission characteristics of briquette samples are studied under fixed gas pressure and confining pressure. The results show: mechanical properties discreteness of coal containing gas is decreased because of gas existing; triaxial strength is decreased and Young's modulus is increased compared with coal; acoustic emission events are comparatively well distributed in process of triaxial compression of coal containing gas; the concentrated regions only appear at near damage regions; the distribution of AE events amplitude shows three peaks mode, energy of AE events is increased as deformation increasing; AE events parameters lag behind triaxial compression curve.
引用
收藏
页码：667 / 671
页数：5
相关论文
共 8 条
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