摘要
本文依据现场实测资料,采用相似模拟,有限元电算模拟和理论分析方法,对缓倾斜放顶煤工作面顶煤冒落的运动及破坏发展过程进行了系统的分析,提出了顶煤破坏发展过程的“假塑性结构”,初步揭示了顶煤破碎的机理。最后,在对破煤效果分析的基础上,指出了放顶煤开采法的适应性。图6,参3。
Based on in—situ observations, the finite element method, analoque material modelling and theoretical analysis was used to study the process of movement and de stroying of the top—coal mass in the gently inclined working faces with top—coal drawing, and advanced 'The false plastic structural' of the breaking process of the top-coal, thus, the mechanism of the top-coal fissure is primarily announced. Last, based on the analysis of breaking result of the top—coal, the suitability of caving top—coal mothod is pointed out. 6figs, 3refs.
出处
《湘潭矿业学院学报》
1992年第2期119-127,共9页
Journal of Xiangtan Mining Institute
关键词
缓倾斜煤层
顶煤
破碎规律
gently inclined seams
finite clements
/false plastic structural
/top-coal