摘要
利用ＡＤＩＮＡ程序对顶煤进行了二维有限元应力分析，得到了顶煤破碎发展区域“三带”量的概念，为顶煤的破碎机理分析提供了依据。
This paper carried out two dimentional finite element analysis of the stress distribution of the top coal using the ADINA program. Through analysis,the concept of 'three-zones'which were formed during the failure process of top coal was established.It provides a basis for analyzing the failure mechanism of the top coal.
出处
《山东矿业学院学报》
CAS
1999年第2期28-31,53,共5页
Journal of Shandong University of Science and Technology(Natural Science)
关键词
放顶煤
顶煤应力
有限元
采煤
sublevel caving
stress in the top coal
the finite element
