Development Rule of Full-Mechanized Caving Mining Water-Flowing Fracture Zone in Yanzhou Mining Area

Abstract:

The heights of fully-mechanized mining water-flowing fracture zone of Yanzhou mining area were measured by borehole simple hydrology method .In order to confirm the influence degree of the geology and mining factors to the damage height of overburden rock , the paper analyses the measured data by using grey relation analysis theory, and concludes that the face span, mining thickness and mining depth are main influence factors to the height of the water-flowing fracture zone. On this basis, the paper reveals the general rules of fully-mechanized caving mining overburden rock destruction with the on conditions of gentle dip, thick coal seam and hard and medium hard roof by using regression analysis method.

• Periodical: Advanced Materials Research (Volumes 616-618)
• Pages: 475-480
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.616-618.475
• Online since: December 2012
• Authors: Zhen Li Fan, Bing Nan Hu
• Keywords: Damage Rule of Overlying Strata, Fully Mechanized Top-Coal Caving Mining, Grey Relational Analysis (GRA), Water-Flowing Fracture Zone

References

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[4] Zhenli FAN.Coal Engineering,Vol8(2011),pp.93-95.