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《Coal Mine Blasting》 2003-01
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Application of the Pile of Extruding Breakstone in the Waster Back-fill Foundation of Coalmine Subsidence Area

Li Jinshan Blasting Technology Research Institute CCRI (Huaibei, 235039)  
In this paper, the design principle and applicable range of the pile of extruding breakstone are introduced. By analyzing a practical project, the application of this technique in waste back-fill foundation of coalmine subsidence area is discussed.
【CateGory Index】: TD82
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