Variation of Pore Water Pressure in Tailing Sand under Dynamic Loading
Joint Authors
Jin, Jia-xu
Cui, Hong-zhi
Liang, Li
Li, Shi-wang
Zhang, Ping-yi
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-30
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Intense vibration affects the pore water pressure in a tailing dam, with the tendency to induce dam liquefaction.
In this study, experiments were performed wherein model tailing dams were completely liquefied by sustained horizontal dynamic loading to determine the effects of the vibration frequency, vibration amplitude, and tailing density on the pore water pressure.
The results revealed four stages in the increase of the tailing pore water pressure under dynamic loading, namely, a slow increase, a rapid increase, inducement of structural failure, and inducement of complete liquefaction.
A lower frequency and smaller amplitude of the vibration were found to increase the time required to achieve a given pore water pressure in dense tailings.
Under the effect of these three factors—vibration frequency and amplitude and tailing density—the tailing liquefaction time varied nonlinearly with the height from the base of the tailing dam, with an initial decrease followed by an increase.
The pore pressure that induced structural failure also gradually decreased with increasing height.
The increase in the tailing pore pressure could be described by an S-shaped model.
A complementary multivariate nonlinear equation was also derived for predicting the tailing pore water pressure under dynamic loading.
American Psychological Association (APA)
Jin, Jia-xu& Cui, Hong-zhi& Liang, Li& Li, Shi-wang& Zhang, Ping-yi. 2018. Variation of Pore Water Pressure in Tailing Sand under Dynamic Loading. Shock and Vibration،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215081
Modern Language Association (MLA)
Jin, Jia-xu…[et al.]. Variation of Pore Water Pressure in Tailing Sand under Dynamic Loading. Shock and Vibration No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1215081
American Medical Association (AMA)
Jin, Jia-xu& Cui, Hong-zhi& Liang, Li& Li, Shi-wang& Zhang, Ping-yi. Variation of Pore Water Pressure in Tailing Sand under Dynamic Loading. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215081
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215081