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《Express Information of Mining Industry》 2005-01
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Research and Present Application State of Caving Difficulty of Domestic Natural Caving Method

Chen Qingyun Cai Sijing Ming Shixiang(Beijing University of Science and Technology) Li Liwu(Jinshandian Iron Mine,Wuhan Iron & Steel Co.)  
The caving difficulty research of the natural caving method has undergone the development process of comprehensive evaluation from single factor to multi-factor and from determinacy to indeterminacy.The evaluation method and evaluation index of ore rock caving difficulty are summarized,and the present application state of the evaluation method and evaluation index in different geological conditions is also summarized in this paper.The research and practice of the caving difficulty of the natural caving method of our country show that the evaluation of the ore rock caving difficulty of hard rock,crushed ore body and powdered ore has formed a perfect system.
【CateGory Index】: TD853.364
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