异震事件诱发浮选后尾矿液化的模拟

Q4 Environmental Science
W. Świdziński
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引用次数: 2

摘要

摘要本文介绍并讨论了“Żelazny Most”尾矿库浮选后饱和尾矿在地震动载作用下孔隙水压力累积的数值模拟结果。数值模拟基于A. Sawicki提出的压实/液化模型。模型参数是在实验室对TSF“Żelazny Most”取样的尾矿进行确定的。通过一系列不同水平加速度幅值的数值试验,验证了该数值模型的灵敏度。在主要计算中,假设在真实的准震事件中记录的加速度图。结果表明:在当前地震活动下,在TSF“Żelazny Most”附近,饱和尾矿层内会产生一定孔隙水压力,但不会引发液化现象。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modelling of Post-flotation Tailings Liquefaction Induced by Paraseismic Events
Abstract This paper presents and discusses the results of numerical modelling of pore water pressure build-up in post-flotation saturated tailings deposited at the Tailings Storage Facility “Żelazny Most”, caused by seismic-induced dynamic loading. Numerical simulations were based on the compaction/liquefaction model proposed by A. Sawicki. The model parameters were determined in the laboratory for tailings sampled at the TSF “Żelazny Most”. The sensitivity of the numerical model was verified in a series of numerical tests for various horizontal acceleration amplitudes. In the main calculations, an accelerogram recorded during a real paraseimic event was assumed. The results obtained show that, with the current seismic activity near the TSF “Żelazny Most”, some pore water pressure is generated within the saturated tailings layer, but it does not trigger the liquefaction phenomenon.
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来源期刊
Archives of Hydroengineering and Environmental Mechanics
Archives of Hydroengineering and Environmental Mechanics Environmental Science-Water Science and Technology
CiteScore
1.30
自引率
0.00%
发文量
4
期刊介绍: Archives of Hydro-Engineering and Environmental Mechanics cover the broad area of disciplines related to hydro-engineering, including: hydrodynamics and hydraulics of inlands and sea waters, hydrology, hydroelasticity, ground-water hydraulics, water contamination, coastal engineering, geotechnical engineering, geomechanics, structural mechanics, etc. The main objective of Archives of Hydro-Engineering and Environmental Mechanics is to provide an up-to-date reference to the engineers and scientists engaged in the applications of mechanics to the analysis of various phenomena appearing in the natural environment.
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