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Research on Mining Safely Under Water-body of the Second Mining Areas in Southern Daping Mine

Author: WangMingXing
Tutor: TiZhengYi
School: Liaoning Technical University
Course: Mining engineering
Keywords: Mining under water Security Analysis Caving Height of water flowing fractured zone Numerical Simulation
CLC: TD823.83
Type: Master's thesis
Year: 2009
Downloads: 110
Quote: 0
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Abstract


In this paper, to fully understand and grasp the domestic water body under mining research and exploitation based on the experience from the research mining under waterbodies with the characteristics of the start , through the Daping Mine southern two mining area water bodies, seam burial conditions and overburden characterization, determined to ensure Daping Mine mining area south two seam under water safe exploitation of the key technologies to be solved , and related issues. Through the mining area safety analysis , to develop the appropriate research and research methods. Through the Daping Mine hydrogeological and technical and economic indicators analyzed, from caving and mining Slicing two possible scenarios preferably a mechanized top coal caving mining , namely caving , as in-depth study of the object. In this paper, regression analysis , based on a large number of practical information , derived for caving mining water flowing fractured zone height is expected to experience regression formula , using UDEC numerical simulation method Daping Mine southern two mining area under water in mining in the formation of water flowing fractured zone height were predicted. Height of water flowing fractured zone based on the predicted value and the impermeable layer to define criteria to determine the impermeable layer is implemented under the Daping mine water caving impermeable layer security scheme . Prove Daping Mine Mining District in Southern two reservoirs caving under implementation program is feasible and safe . In order to verify the reliability of conclusions , select S2S2 face safety and technical analysis . Observations by drilling overburden failure to prove the conclusion of the study method is reliable and expected results are accurate , but also explains the research methods and technology roadmap is correct, the research results can guide the production practice .

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CLC: > Industrial Technology > Mining Engineering > Mining > Coal mining > Underground mining methods > Mining method in the special conditions > Buildings , railways , water and pressurized water exploitation
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