Chunan Tang   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Main positions: President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
Other Post: Vice President of the Chinese Society of Rock Mechanics and Engineering CSRME

MORE> Institutional Repository Personal Page
Language:English

Paper Publications

Title of Paper:煤和瓦斯突出过程中地应力作用机理

Hits:

Date of Publication:2009-09-15

Journal:东北大学学报(自然科学版)

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Volume:30

Issue:9

Page Number:1326-1329

ISSN No.:1005-3026

Key Words:气固耦合;RFPA2D-GasFlow;煤与瓦斯突出;地应力;数值试验

Abstract:基于岩石破裂损伤理论和气固耦合方法,利用RFPA2D-GasFlow数值模拟系统,结合煤体中应力分布情况和瓦斯突出破坏过程及结果,分析了煤与瓦斯突出三要素(地应力、瓦斯和煤体物理力学性质)中的地应力在瓦斯突出过程中的作用.研究结果表明,在地应力小于1 MPa时,地应力对瓦斯突出具有阻碍作用;当地应力大于1 MPa时,地应力对瓦斯突出具有双重作用:一方面其产生的水平压应力增强了煤体抵抗破坏的能力;另一方面其产生的剪切应力促进煤体发生破坏.同时应用研究结果对浅埋煤层瓦斯突出问题进行了分析,认为浅埋煤层承受的地应力较小,煤层中存在着水平拉应力和垂直拉应力且是大范围存在的,故导致浅埋煤层发生瓦斯突出且多发生特大型瓦斯突出.

Address: No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, P.R.C., 116024
Click:    MOBILE Version DALIAN UNIVERSITY OF TECHNOLOGY Login

Open time:..

The Last Update Time: ..