采动覆岩涌水溃砂灾害模拟试验系统研制与应用

doi:10.13722/j.cnki.jrme.2015.1546

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Abstract In order to study the development of water and sand inrush across the overburden fissures due to coal mining，a simulation test system for water and sand inrush across overburden fissures due to coal mining was developed. The system consists of a load support bracket，a laboratory module，a confined water module，a coal mining simulator，a storage tank，a servo control system of hydraulic pressure and water yield，and a servo control system of displacement and stress. The system has the feature of large space for simulating，good visibility，good sealing，multiple loading methods and good precision. The coal strata in the western region of China were studied. New non-hydrophilic composite materials with the lower intensity were developed to simulate the coal strata. The excavation model reproduced the whole process of water and sand inrush across the overburden fissures due to coal mining. The deformation and failure of overburden，fissure extension of overburden，the formation of water and sand channels，and the parameters of water and sand inrush were obtained. Test results showed that the system was stable and reliable.

Key words： mining engineering mining overburden water and sand inrush deformation and failure fissure extension of overburden simulation test

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	Articles by authors
	GUO Weijia1
	2
	WANG Hailong1
	CHEN Shaojie1
	2
	LI Jinping1

Cite this article:

GUO Weijia1,2,WANG Hailong1, et al. Development and application of simulation test system for water and sand inrush across overburden fissures due to coal mining[J]. , 2016, 35(7): 1415-1422.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2015.1546 OR http://www.rockmech.org/EN/Y2016/V35/I7/1415

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