Mechanical and Microstructural Properties of Alkali Wastes as Filling Materials for Abandoned Salt Caverns

doi:10.1007/s12649-020-01104-3

	Mechanical and Microstructural Properties of Alkali Wastes as Filling Materials for Abandoned Salt Caverns
	Yang, Jie 1; Liu, Zhengyou 3; Yang, Chunhe 1,2; Li, Huan 2; Lu, Qingfeng 3; Shi, Xilin 2
刊名	WASTE AND BIOMASS VALORIZATION
	2020-05-28
页码	10
关键词	Solid wastes management Underground filling engineering Abandoned salt caverns Mechanical properties Microstructure
ISSN号	1877-2641
DOI	10.1007/s12649-020-01104-3
英文摘要	Alkali solid waste from soda industries has previously been stacked on surface and contaminated soil and groundwater. In China, an engineering method of filling alkali wastes into abandoned salt caverns is adopted. This method can solve the problem of waste disposal and the potential geological disasters associated with salt caverns. In such filling projects, the engineering properties of alkali wastes are important for the safety and stability of salt caverns. In this study, the microstructural and mechanical properties of alkali wastes were investigated. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to analyze the microstructure and mineralogy of such wastes. Direct shear tests were conducted to evaluate the mechanical performance and to obtain the strength parameters of alkali wastes. The basic physical characteristics, microstructure, mineral compositions, and mechanical properties of alkali wastes vary significantly at different burial depths. Moreover, the strength properties of alkali wastes are close to those of the two other common filling materials, sandstone-mudstone mixtures and tailings. The research results can be used as a reference for similar filling projects and can also be beneficial for the cyclic utilization of alkali wastes.
资助项目	National Natural Science Foundation of China[51774266] ; National Natural Science Foundation of China[51621006] ; National Natural Science Foundation of China[51874273] ; National Natural Science Foundation of China[51874274] ; Youth Innovation Promotion Association CAS[2019324]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000559584600001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24671]
专题	中科院武汉岩土力学所
通讯作者	Shi, Xilin
作者单位	1.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.Jiangsu Jingshen Salt & Chem Ind Co Ltd, Huaian 223200, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Jie,Liu, Zhengyou,Yang, Chunhe,et al. Mechanical and Microstructural Properties of Alkali Wastes as Filling Materials for Abandoned Salt Caverns[J]. WASTE AND BIOMASS VALORIZATION,2020:10.
APA	Yang, Jie,Liu, Zhengyou,Yang, Chunhe,Li, Huan,Lu, Qingfeng,&Shi, Xilin.(2020).Mechanical and Microstructural Properties of Alkali Wastes as Filling Materials for Abandoned Salt Caverns.WASTE AND BIOMASS VALORIZATION,10.
MLA	Yang, Jie,et al."Mechanical and Microstructural Properties of Alkali Wastes as Filling Materials for Abandoned Salt Caverns".WASTE AND BIOMASS VALORIZATION (2020):10.