金川全尾砂–棒磨砂混合充填料胶砂强度与料浆流变特性研究

doi:10.13722/j.cnki.jrme.2014.s2.075

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Abstract The research on mixed filling materials including unclassified tailings and rod milling sand was conducted due to the serious lack of rod mill sand in Jinchuan mine. Based on the experiments of filling body strength and rheological properties for different ratios of mixed filling mortar with unclassified tailings-rod milling sand，revealed the relationship between filling body strength and the ratios，average particle size and uniformity coefficient and determined the reasonable ratio of Unclassified Tailings and Rod Milling sand was 3∶7 which apply to underhand drift cut-and-fill method in Jinchuan mine. The research shows that the compressive strength of 7 d and 28 d bleeding and sedimentation rate were precede rod milling sands. This research achievement provided important technical support to industrialized application of unclassified tailings in Jinchuan mine and laid the foundation of the utilization of waste resources and environmental protection.

Key words： mining engineering unclassified tailings-rod milling sand mixed filling material ration compressive strength

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	Articles by authors
	YANG Zhiqiang1
	2
	GAO Qian1
	WANG Yongqian2
	CHEN Dexin2
	BA Duoheng2

Cite this article:

YANG Zhiqiang1,2,GAO Qian1, et al. RESEARCH ON FILLING BODY STRENGTH AND RHEOLOGICAL PROPERTIES OF MIXED FILLING MORTAR WITH UNCLASSIFIED TAILINGS AND ROD MILLING SAND IN JINCHUAN MINE[J]. , 2014, 33(S2): 3985-3991.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.075 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/3985

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