摘要
用计算煤体的屈曲模态研究了开滦赵各庄矿的煤体失稳现象。该失稳模型考虑了煤体的几何非线性和弹塑性两个方面。本模型的有限元模拟结果与现场观察相一致。
The instability phenomena of coal body are studied by computing bulging mode of coal body in Zhaogezhuang coal mine in Kailuan. The instability model takes into account both geometric non-linearity and elastic-plastic properties. The simulation results of the finite element method based on the model are in good agreement with the practical observation.
出处
《西部探矿工程》
CAS
2004年第8期62-64,共3页
West-China Exploration Engineering
关键词
数值模拟
煤体失稳
刚度距阵
numerical simulation
coal body instability
stiffness matrix
