Impact of mining waste effluents on the shear strength of compacted lateritic soils used in waste containment dikes (DRC)
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 411
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شناسه ملی سند علمی:
LTBD04_032
تاریخ نمایه سازی: 25 آذر 1396
چکیده مقاله:
Hydraulic fracturing is the evoked main cause of dikes failure. Several authors analyzed the soils properties under mechanic and hydraulic solicitation. However, these analyses don’t take into account the chemical influence of liquid percolating the matrix of soil. This article analyzes the impact of liquid effluents emanating Eom ore concentrators on compacted lateritic soils behavior in waste containment dikes. It emphasizes shear strength parameters of compacted laterite and percolated by liquid effluents with different chemical nature. The tests include the shear strength measurements when the specimens were imbibed with different fluids. The results show that acid and basic liquid effluents affect shear strength parameters and the strain modules are modified. The effect of the initial suctions and the density before the imbibition was also investigated, which reveals that structural changes caused by initial saturation and density of specimens seem to be more important for explaining strength behavior than chemical interaction
نویسندگان
gustave mukoko kalenda
Department of Civil Engineering, University of Lubumbashi, Lubumbashi, Democratic Republic of Congo , Department of Civil Engineering, Louvain School of Engineering, Catholic University of Louvain,Louvain-la-Neuve, Belgium
gabriel lile amisi
Department of Civil Engineering, University of Lubumbashi, Lubumbashi, Democratic Republic of Congo
yannick kiyukeno kitwanyoka
Department of Civil Engineering, University of Lubumbashi, Lubumbashi, Democratic Republic of Congo
eile musoya kyulu
Department of Civil Engineering, University of Lubumbashi, Lubumbashi, Democratic Republic of Congo