Study of the influence of acidic tailings water with a large number of chemical substances on the granular medium and slope stability in the dump

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	Study of the influence of acidic tailings water with a large number of chemical substances on the granular medium and slope stability in the dump
	Wang, Guangjin 1,2; Kong, Xiangyun 2; Yang, Chunhe 1
	2015
会议日期	MAR 27-30, 2015
会议地点	Beijing, PEOPLES R CHINA
关键词	acidic tailings water copper and iron compounds chemical reaction slope stability
卷号	47
期号	4
页码	1077-1083
英文摘要	The long-term soaking of the granular medium with acidic tailings water which contains a large number of chemical substances is an important factor that affects the structural composition of copper waste ore with copper compounds and the slope stability in the dump. Therefore, based on the project example that part of the granular material of the mine dump at the bottom is soaked by the acidic tailings water for a long time, in the present work indoor direct shear tests of the granular medium under long-term soaking were performed and the influence of long-term soaking on the particle breakage of granular medium and strength parameters was analyzed. The dump slope stability was studied at different water levels of the tailings pond and was compared to the indoor test results. The research results show that the breakage rate of the soaked samples is obviously higher than that of saturated and on-situ samples when the granular medium is soaked by the tailings water for a long time. The change in the value of the safety coefficient is small as the water level of the tailings pond is below 230 m. But the safety coefficient obviously decreases after the water level of the tailings pond is up to 230 m and it increases with the increase of the water level of the tailings pond. Moreover, the slope sliding surface moves down with the increase in the water level of the tailings pond.
会议录	BULGARIAN CHEMICAL COMMUNICATIONS
会议录出版者	BULGARIAN ACAD SCIENCE
会议录出版地	SOFIA
语种	英语
WOS研究方向	Chemistry
WOS记录号	WOS:000367652100017
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4843]
专题	岩土力学所知识全产出_会议论文国家重点实验室知识产出_会议论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Kunming Univ Sci & Technol
推荐引用方式 GB/T 7714	Wang, Guangjin,Kong, Xiangyun,Yang, Chunhe. Study of the influence of acidic tailings water with a large number of chemical substances on the granular medium and slope stability in the dump[C]. 见:. Beijing, PEOPLES R CHINA. MAR 27-30, 2015.