Analysis and application in controlling
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Yuehua DENG; Jianxin TANG; Xiangke ZHU; Yong FU; Zhangyin DAI
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Article
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2010
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Elsevier
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English
โ 668 KB
In order to optimize gob-side entry in fully-mechanized working face in moderate-thick-coal seams, we adopt a new attempt to pack roadside by pumping ordinary concrete, which is very important for the development of gob-side entry technology. The concrete has a long initial setting time and a low in