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金属矿山 ›› 2013, Vol. 42 ›› Issue (02): 44-46.

• 采矿工程 • 上一篇    下一篇

基于相似模拟试验的综放工作面矿压显现规律

郑金平1,冯彦军2,3   

  1. 1.山西三元煤业股份有限公司;2.天地科技股份有限公司;3.煤炭科学研究总院开采设计研究分院
  • 出版日期:2013-02-15 发布日期:2013-03-13

Ground Pressure Behavior of Fully Mechanized Top-coal Caving Face based on Simulation Test

Zheng Jinping1,Feng Yanjun2,3   

  1. 1.Shanxi Sanyuan Mining Co., Ltd.;2.Tiandi Science & Technology Co., Ltd.;3.Coal Mining & Design Department, China Coal Research Institute
  • Online:2013-02-15 Published:2013-03-13

摘要: 基于综放开采技术的研究现状,建立了综放开采相似模拟试验模型,对综放开采过程进行了模拟。随着工作面推进,测量顶煤下沉量及超前支承压力的变化,进而分析综放开采工作面顶板矿压显现规律。试验结果表明:顶煤下沉量经历缓慢增加、趋于加剧、缓和、急剧加大等变化过程;支承压力在达到峰值后开始衰减,基本顶周期来压显现趋于缓和;由于支架上方“垫层”的作用,矿压显现较为缓和。

关键词: 综放工作面, 矿压, 相似模拟试验, 支承压力

Abstract: In view of research situation of the fully mechanized top-coal caving, the simulation test model for fully mechanized top-coal caving was presented.With the top-coal caving process promoted, the variation of top-coal subsidence and abutment pressure was measured and the ground pressure behavior of fully mechanized top-coal caving was analyzed consequently.The test results showed that the top-coal subsidence improved slowly, nearly sharply, moderately and sharply.The peak abutment pressure initiated to decay and the periodic weighting of basic roof appears relatively moderate.Due to the action of “cushion” at the upper support, the ground pressure appears moderately.

Key words: Fully mechanized top-coal caving face, Ground pressure, Simulation test, Abutment pressure