工作面端头区稳定性分析及端头支架选用

摘要

In this paper, taking the Sima mine 1215 working face as the actual engineering background, analyzed the stability of fully mechanized top coal caving face end zone from the surrounding rock structure of the end zone, coal pillar structure and coal pillar reinforcement way . The arc triangle formed after roof collapsed was as large structure in the end zone, the end support was as a small structure. According to the method ensuring the stability of the large and small structures, the end bracket which is suitable for the characteristics of Sima mine is preliminarily selected.%本文以司马矿1215工作面为实际工程背景，分别从端头区围岩结构、煤柱结构及煤柱加固方式对综放工作面的端头区稳定性展开了深入的研究。将工作面顶板塌落之后所形成的弧形三角板看作是端头区的大结构，将端头支架看作是端头区的小结构。并依据保证大、小结构稳定的方法初步选择了适合司马矿特点的端头支架。