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金属矿山 ›› 2014, Vol. 43 ›› Issue (01): 29-33.

• 采矿工程 • 上一篇    下一篇

旧采区复采采场围岩应力分布研究

刘畅1,李颂奇1,樊秀志2   

  1. 1.太原理工大学矿业工程学院,山西 太原 030024;2.煤炭工业太原设计研究院,山西 太原 030001
  • 出版日期:2014-02-14 发布日期:2014-02-25
  • 基金资助:

    “十二五”国家科技支撑计划项目(编号:2012BAB13B04),山西省青年科技研究基金项目(编号:2012021022-4)。

Study on Stress Distribution of Surrounding Rock at Repeated Mining Stope of Residual Coal Area

Liu Chang1,Li Songqi1,Fan Xiuzhi2   

  1. 1.College of Mines,Taiyuan University of Technology,Taiyuan 030024,China;2.Taiyuan Design Research Institute for Coal Industry,Taiyuan 030024,China
  • Online:2014-02-14 Published:2014-02-25

摘要: 通过对望田煤业旧采区赋存结构的调研,总结了3种不同的旧采区顶板力学模型,对力学模型进行理论分析,得到顶板最大应力出现在靠近煤柱处。采用PFPA软件对旧采区复采过空巷、过煤柱时复采采场顶板和煤柱进行数值模拟,初步给出了过空巷、过煤柱时应通过注浆、充填、提前支护空巷控制顶板的技术措施。

关键词: 旧采区, 复采采场, 围岩应力, 数值模拟

Abstract: Through the investigation on existence structure of the residual coal area in Wangtian,3 kinds of roof mechanical models for different residual coal area was established.The analysis on the mechanical models shows that the maximum stress of the roof is nearby coal pillars.Numerical simulation on roof and coal pillar of the repeated mining stope across the gob and coal pillar in residual coal area was made with PFPA software.Such technical measures as grouting,filling,and forepoling to support the roof across the gob and coal pillar were initially proposed.

Key words: Residual coal area, Repeated mining stope, Stress of surrounding rock, Numerical simulation