煤炭工程 ›› 2018, Vol. 50 ›› Issue (8): 89-92.doi: 10.11799/ce201808024

• 研究探讨 • 上一篇    下一篇

基于覆岩结构的沿空留巷充填体载荷估算方法

吴志刚,褚晓威,石蒙   

  1. 1. 天地科技股份有限公司
    2. 中国煤炭科工集团天地科技股份有限公司开采设计事业部
  • 收稿日期:2016-12-25 修回日期:2017-03-20 出版日期:2018-08-20 发布日期:2018-12-17
  • 通讯作者: 褚晓威 E-mail:chuxiaowei2003@163.com

Load estimating method of packing body for gob-side entry retaining based on overlying strata structure

  • Received:2016-12-25 Revised:2017-03-20 Online:2018-08-20 Published:2018-12-17

摘要: 针对部分充填体载荷设计公式复杂、参数选取随意等造成的留巷失败或浪费等问题,通过分析沿空留巷上覆岩层移动规律,提出了基于采动覆岩结构和ALPS的充填体承载特性,并给出了不同顶板条件下沿空留巷后期充填体载荷的简化估算公式。该估算方法在坚硬及中硬顶板条件下沿空留巷实践中得到成功验证,为沿空留巷充填体的设计提供一定借鉴。

关键词: 覆岩结构, 沿空留巷, 充填体, 载荷估算

Abstract: Some formulas of packing body load design were complicated and parameters were hardly determined, which could make gob-side entry retaining failure or materials waste. By analyzing overlying strata structure in gob-side entry, packing body loading characteristics based on overlying strata structure and ALPS were proposed and simplified estimating formula of packing body’s stable load in later stage of gob-side entry retaining under different strata was put forward. The method was successfully verified in gob-side entry retaining under medium hard and hard roof, providing experience for design of packing body in gob-side entry retaining.

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