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《Metal Mine》 2009-02
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Theory and Application of the Depressurized Mining for Inclined Medium-thick Ore Bodies

Wang Wenjie(Wuhan University of Science and Technology)  
In the underground metal mines,inclined medium thick ore bodies amount to 23% of the total orebodies being mined.With the mining going deeper,this ratio will further increase.The mining of this type of ore bodies is characterized by poor spatial moving conditions of caved ore.Once the development workings fails due to ground pressure,the ore may be lost permanently.With the increase in mining depth,the development workings for such type of orebody will face a greater risk of ground failure.To radically solve the instability of development workings,when the dip angle and thickness of a deposit are appropriate,the mining dynamic pressure in the development workings area can be timely released.Therefore,a theoretical method of depressurized mining for inclined medium-thick ore bodies was proposed and successfully tested and applied in Chambishi Copper Mine in Zambia,which achieved good technical and economic results.
【Fund】: 国家自然科学基金项目(编号:50804036)
【CateGory Index】: TD862
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