张大章;

• 1:中铁四院集团新型轨道交通设计研究有限公司

摘要(Abstract)：

神角矿2#煤层北采区大巷受2311和2302两个回采工作面叠加采动影响,巷道发生严重变形破坏,部分区域内大巷顶板下沉量超过500 mm,严重影响矿井正常生产.本文以现场实际情况为依据,研究工作面前方240 m距离范围内应力大小及角度受采动影响产生的变化,模拟大巷位于工作面前方40 m、60 m、80 m、100 m和120 m五种距离位置,分析对应的巷道围岩应力及塑性区分布情况.通过分析巷道应力及塑性区分布规律,最终确定神角矿2#煤层北采区大巷合理停采线位置为80 m.本文研究可为相似条件下采动大巷塑性区分布及合理停采线位置的确定提供借鉴.

关键词(KeyWords)： 数值模拟;塑性区;应力分布;停采线

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51704294)

作者(Authors): 张大章;

DOI: 10.13568/j.cnki.651094.2019.04.018

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