STUDY ON THE MECHANICS AND MICRO/MACROECONOMICS OF MULTIPLE STRIP-SHAPED PILLAR RECOVERY

doi:10.24425/ams.2020.132703

	STUDY ON THE MECHANICS AND MICRO/MACROECONOMICS OF MULTIPLE STRIP-SHAPED PILLAR RECOVERY
	Chen, Qingfa 1,2; Wu, Shiwei 2; Zhao, Fuyu 2
刊名	ARCHIVES OF MINING SCIENCES
	2020
卷号	65 期号:1 页码:19-33
关键词	multiple strip-shaped pillars recovery mechanics micro/macroeconomic
ISSN号	0860-7001
DOI	10.24425/ams.2020.132703
英文摘要	The structural system of a multiple strip-shaped pillar-roof is common in underground mine exploitation, and research on its mechanics and micro/macroeconomics is meaningful for utilizing strip-shaped pillar resources. A general model of the structural system of a multiple strip-shaped pillar-roof was established, the deformation mechanism of the model was analysed by material mechanics, and the deflection curve equations of the model were obtained. Based on the stress strain constitutive relation of the strip pillar and cusp catastrophe theory, the nonlinear dynamic instability mechanism of the structural system of a multiple strip-shaped pillar-roof was analysed, and the expressions of the pillar width for maintaining the stability of different types of structural systems were derived. The benefits of different structural systems were calculated using micro/macroeconomic theory, the type of the structural system was determined, and different recovery schemes were obtained. Theoretical application research was applied to a large manganese mine, and the results demonstrate that no pillar recovery was needed in 2016, a 9-m wide artificial pillar could be built to replace a pillar in 2017, and the construction of 14-m wide artificial pillars can be conducted in 2018.
资助项目	National Natural Science Foundation of China[41402306] ; Open Research Fund of the State Key Laboratory of Geomechanics and Geo-technical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z016015]
WOS研究方向	Mining & Mineral Processing
语种	英语
出版者	POLSKA AKAD NAUK, POLISH ACAD SCIENCES
WOS记录号	WOS:000523190500002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23796]
专题	中科院武汉岩土力学所
通讯作者	Chen, Qingfa
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Guangxi Univ, Sch Resources Environm & Mat, Nanning 530004, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qingfa,Wu, Shiwei,Zhao, Fuyu. STUDY ON THE MECHANICS AND MICRO/MACROECONOMICS OF MULTIPLE STRIP-SHAPED PILLAR RECOVERY[J]. ARCHIVES OF MINING SCIENCES,2020,65(1):19-33.
APA	Chen, Qingfa,Wu, Shiwei,&Zhao, Fuyu.(2020).STUDY ON THE MECHANICS AND MICRO/MACROECONOMICS OF MULTIPLE STRIP-SHAPED PILLAR RECOVERY.ARCHIVES OF MINING SCIENCES,65(1),19-33.
MLA	Chen, Qingfa,et al."STUDY ON THE MECHANICS AND MICRO/MACROECONOMICS OF MULTIPLE STRIP-SHAPED PILLAR RECOVERY".ARCHIVES OF MINING SCIENCES 65.1(2020):19-33.