摘要
利用有限元分析进行数值模拟井下巷道分步开挖,对巷道应力、位移、应变进行了分析,改善了应力分布,有效减少了瓦斯涌出。本文利用数值模拟分步开挖并应用于实践,通过现场试验论证得出合理的分步开挖顺序改变了岩石应力集中,减少了瓦斯涌出量。
By using the method of numerical simulation through the finite element method, it showed that this way could be applied to the digging of under-well laneway and in the same time to analyze the stress, displacement and strain. It can improve the stress distribution and reduce the burst of the gas effectively. This paper present the results that the reasonable digging method can change the stress convergence of rocks and reduce the burst of gas by digging step by step through the method of numerical simulation and practice in the locale.
出处
《中国安全生产科学技术》
CAS
北大核心
2009年第3期158-163,共6页
Journal of Safety Science and Technology
关键词
数值模拟
开挖方案
应力
模型
numerical simulation
digging plan
stress
model
