厚煤层大采高长工作面地表岩层移动规律分析

doi:10.11799/ce201409028

Abstract

Abstract:

To grasp the influence on the surface after coal mined out. In this paper, using 5310 large cutting height workface in Chengzhuang Coal Mine of the Jincheng Coal Group as an example, surface move observation stations were built and then the surface strata movement data was collected and analyzed. The surface subsidence curve, surface subsidence influence scope and key parameters of surface movement were obtained. Results show that, after large cutting height workface mined out, surface movement and deformation value is greater, surface subsidence influence scope is wider and influence scope at the striking bearing is more than 300m.

Key words: large mining height, surveying station, surface ground displacement, surface subsidence

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URL: http://www.coale.com.cn/EN/10.11799/ce201409028

http://www.coale.com.cn/EN/Y2014/V46/I9/83

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Ground Strata Movement Regularity and Analysis at Large Mining Height and Extended Mining Face in Thick Seam

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