Geomechanical investigation for abandoned salt caverns used for solid waste disposal

doi:10.1007/s10064-020-02013-4

	Geomechanical investigation for abandoned salt caverns used for solid waste disposal
	Shi, Xilin 1; Chen, Qinglin 2; Ma, Hongling 1; Li, Yinping 1; Wang, Tongtao 1; Zhang, Chao 1
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2020-10-21
页码	14
关键词	Rock mechanics Abandoned salt cavern Solid waste disposal Discrete-continuous coupling Surface subsidence
ISSN号	1435-9529
DOI	10.1007/s10064-020-02013-4
英文摘要	Using abandoned salt caverns for the disposal of solid wastes is one of the most effective and safest methods to deal with potential hazards caused both by the abandoned caverns and by the solid wastes. To investigate the geomechanical behavior of abandoned salt caverns used for solid waste disposal (alkali wastes), a discrete-continuous coupled method is proposed. In the proposed method, alkali wastes (discrete materials) are simulated using the discrete element method (DEM) while the caverns are simulated using the finite difference method (FDM). This method can overcome the shortcomings of the traditional method of treating the alkali waste as continuous materials with low strength, which cannot accurately depict the interaction between the cavern and alkali waste. Using the proposed method, a 3D geomechanical model is built to investigate the long-term mechanical behaviors of the cavern and alkali waste. The results show that the alkali wastes have significant effects on reducing the cavern convergence while the cavern convergence compacts the alkali wastes. Consequently, the surface subsidence induced by the convergence of the cavern is much smaller than that of a cavern which does not contain alkali wastes. This study provides a prerequisite to evaluate the effect of filling abandoned salt caverns filled with alkali wastes and also can serve as a reference for stability analysis of gas storage salt caverns that contain insolubles.
资助项目	National Natural Science Foundation of China[51774266] ; National Natural Science Foundation of China[51741410] ; National Natural Science Foundation of China Innovative Research Team[51621006] ; Youth Innovation Promotion Association CAS[2019324] ; Natural Science Foundation for Innovation Group of Hubei Province, China[2016CFA014] ; National Key Research and Development Program of China[2017YFC0804601] ; National Key Research and Development Program of China[2018YFC0808403]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000582404300001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24987]
专题	中科院武汉岩土力学所
通讯作者	Chen, Qinglin
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Chongqing Univ, Coll Resources & Environm Sci, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China
推荐引用方式 GB/T 7714	Shi, Xilin,Chen, Qinglin,Ma, Hongling,et al. Geomechanical investigation for abandoned salt caverns used for solid waste disposal[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020:14.
APA	Shi, Xilin,Chen, Qinglin,Ma, Hongling,Li, Yinping,Wang, Tongtao,&Zhang, Chao.(2020).Geomechanical investigation for abandoned salt caverns used for solid waste disposal.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,14.
MLA	Shi, Xilin,et al."Geomechanical investigation for abandoned salt caverns used for solid waste disposal".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020):14.