文献类型：期刊文献

中文题名：Application of high-pressure water jet technology and the theory of rock burst control in roadway

英文题名：Application of high-pressure water jet technology and the theory of rock burst control in roadway

作者：Yang Zengqiang Dou Linming Liu Chang Xu Mengtang Lei Zhen Yao Yahu

第一作者：Yang Zengqiang

通信作者：Dou, LM[1]

机构：[1]China Univ Min & Technol, Coll Resource & Safety Engn, Beijing 100083, Peoples R China;[2]China Univ Min & Technol, State Key Lab Coal Resources & Mine Safety, Xuzhou 221116, Peoples R China;[3]Guizhou Inst Technol, Coll Min Engn, Guiyang 550003, Peoples R China;[4]China Coal Technol & Engn Grp, Chongqing Res Inst, Chongqing 400039, Peoples R China

第一机构：China Univ Min & Technol, Coll Resource & Safety Engn, Beijing 100083, Peoples R China

通信机构：corresponding author), China Univ Min & Technol, State Key Lab Coal Resources & Mine Safety, Xuzhou 221116, Peoples R China.

年份：2016

卷号：26

期号：5

起止页码：929-935

中文期刊名：矿业科学技术学报：英文版

外文期刊名：INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY

收录：CSTPCD;;EI(收录号：20162602532115);Scopus(收录号：2-s2.0-84975166694);WOS:【ESCI(收录号:WOS:000383712400024)】；CSCD:【CSCD2015_2016】；PubMed;

基金：The research is supported by the National Natural Science Foundation of China (Nos. 51574243 , 51404269 ), the Fundamental Research Funds for the Central Universities of China (No. 2014XT01 ), Guizhou Science and Technology Foundation of China (No. 20152072 ), and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China (No. SZBF2011-6-B35 ).

语种：英文

中文关键词：High-pressure water jet technology;Rock burst;Weak structure zone;Dynamic and static combined load

外文关键词：High-pressure water jet technology; Rock burst; Weak structure zone; Dynamic and static combined load

摘要：This paper puts forward using high-pressure water jet technology to control rock burst in roadway, and analyzes the theory of controlling rock burst in roadway by the weak structure zone model. The weak structure zone is formed by using high-pressure water jet to cut the coal wall in a continuous and rotational way. In order to study the influence law of weak structure zone in surrounding rock, this paper numerically analyzed the influence law of weak structure zone, and the disturbance law of coal wall and floor under dynamic and static combined load. The results show that when the distance between high-pressure water jet drillings is 3 m and the diameter of drilling is 300 mm, continuous stress superposition zone can be formed. The weak structure zone can transfer and reduce the concentrated static load in surrounding rock, and then form distressed zone. The longer the high-pressure water jet drilling is, the larger the distressed zone is. The stress change and displacement change of non-distressed zone in coal wall and floor are significantly greater than that of distressed zone under dynamic and static combined load. And it shows that the distressed zone can effectively control rock burst in roadway under dynamic and static combined load. High-pressure water jet technology was applied in the haulage gate of 250203 working face in Yanbei Coal Mine, and had gained good effect. The study conclusions provide theoretical foundation and a new guidance for controlling rock burst in roadway.
This paper puts forward using high-pressure water jet technology to control rock burst in roadway, and analyzes the theory of controlling rock burst in roadway by the weak structure zone model. The weak structure zone is formed by using high-pressure water jet to cut the coal wall in a continuous and rotational way. In order to study the influence law of weak structure zone in surrounding rock, this paper numerically analyzed the influence law of weak structure zone, and the disturbance law of coal wall and floor under dynamic and static combined load. The results show that when the distance between high-pressure water jet drillings is 3 m and the diameter of drilling is 300 mm, continuous stress superposition zone can be formed. The weak structure zone can transfer and reduce the concentrated static load in surrounding rock, and then form distressed zone. The longer the high-pressure water jet drilling is, the larger the distressed zone is. The stress change and displacement change of non-distressed zone in coal wall and floor are significantly greater than that of distressed zone under dynamic and static combined load. And it shows that the distressed zone can effectively control rock burst in roadway under dynamic and static combined load. High-pressure water jet technology was applied in the haulage gate of 250203 working face in Yanbei Coal Mine, and had gained good effect. The study conclusions provide theoretical foundation and a new guidance for controlling rock burst in roadway. (C) 2016 Published by Elsevier B.V. on behalf of China University of Mining & Technology.