煤炭工程 ›› 2013, Vol. 45 ›› Issue (9): 25-27.doi: 10.11799/ce201309010

• 施工技术 • 上一篇    下一篇

露天煤矿采空区上方作业安全厚度的确定及爆破设计

曹春杰   

  1. 北京天地华泰采矿工程技术有限公司
  • 收稿日期:2013-03-29 修回日期:2013-05-25 出版日期:2013-09-10 发布日期:2013-09-10
  • 通讯作者: 曹春杰 E-mail:chunjiecao@163.com

Determination of security coping thickness and blasting design over goafs in surface mine

  • Received:2013-03-29 Revised:2013-05-25 Online:2013-09-10 Published:2013-09-10

摘要:

为了解决露天煤矿采空区上方作业安全厚度如何确定以及采空区爆破作业安全问题,通过研究指出将采空区上方作业安全厚度为理论计算安全厚度和冒落高度之和。理论计算厚度采用材料力学方法计算,冒落高度采用松散系数法计算。本文结合露天煤矿采空区的特点给出了采空区上方爆破作业设计。

关键词: 露天煤矿, 采空区, 安全厚度, 爆破设计

Abstract:

In order to solve the way how to determine security coping thickness and blasting design. The paper pointed out that the security coping thickness is accumulation of falling height. Theoretical calculation of thickness is calculated by material mechanics method. The paper also give blasting design according to the characteristics of surface mine goaf.

Key words: surface mine, goafs, security coping thickness, blasting design