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

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Language:English

Paper Publications

Title of Paper:煤层上山掘进诱发煤与瓦斯突出数值模拟

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Date of Publication:2006-07-28

Page Number:670-675

Key Words:瓦斯突出;破裂过程;煤层上山;RFPA2D-GasFlow系统;数值模拟;岩石力学

Abstract:本文根据煤岩体介质变形与瓦斯渗流的基本理论,考虑到煤岩介质材料力学性质的非均匀性特点、煤岩介质变形破裂过程中透气性的非线性变化特性以及煤岩体变形破裂过程中瓦斯渗流与煤岩体变形间的耦合作用,在岩石破裂过程分析系统(RFPA2D)的基础上,建立了含瓦斯煤岩破裂过程流固耦合作用的RFPA2D-GasFlow模型.应用该模型对上山掘进诱发煤与瓦斯突出进行了数值模拟,模拟结果再现了含瓦斯煤岩在瓦斯压力、地应力及煤岩力学性质共同作用下煤岩损伤破裂并诱致突出的全过程,模拟结果表明上山突出是地应力、瓦斯压力和煤体物理力学性质三个因素综合作用的结果,这为进一步深入理解煤与瓦斯突出机理及瓦斯抽放防治突出等提供理论基础和科学依据.

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