Stress Analysis of CFG Pile Composite Foundation in Consolidating Saturated Mine Tailings Dam
Joint Authors
Lai, Jinxing
Qiu, Junling
Fan, Haobo
Liu, Houquan
Zhang, Qian
Hu, Zhinan
Wang, Junbao
Source
Advances in Materials Science and Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-09-08
Country of Publication
Egypt
No. of Pages
12
Abstract EN
Cement fly-ash gravel (CFG) pile is a widely used ground reinforcement technique.
This paper aims to address the mechanical characteristics of CFG composite foundation in consolidating saturated mine tailings (MTs) dam.
The field static load tests were employed to explore the bearing capacity of the CFG composite foundation, and finite element (FE) models in three dimensions validated through comparison with experimental results were used to discuss the pile-soil stress distribution and pile-soil stress ratio of the CFG composite foundation.
The results indicate that the distribution of earth pressure and pile stress is relatively homogeneous and stable over depth and load, while the development of CFG composite foundation bearing capacity is insufficient, in which the developed bearing capacity of CFG piles is less than 50% of its characteristic value.
Additionally, compared with the laboratory model test results, the pile-soil stress ratio decreases with the increasing of the load in FEM results proved to better conform to the actual engineering conditions.
Furthermore, the deformation modulus and thickness of cushion exert significant influence on pile-soil stress ratio and integral bearing capacity of CFG composite foundation.
American Psychological Association (APA)
Lai, Jinxing& Liu, Houquan& Qiu, Junling& Fan, Haobo& Zhang, Qian& Hu, Zhinan…[et al.]. 2016. Stress Analysis of CFG Pile Composite Foundation in Consolidating Saturated Mine Tailings Dam. Advances in Materials Science and Engineering،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1096125
Modern Language Association (MLA)
Lai, Jinxing…[et al.]. Stress Analysis of CFG Pile Composite Foundation in Consolidating Saturated Mine Tailings Dam. Advances in Materials Science and Engineering No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1096125
American Medical Association (AMA)
Lai, Jinxing& Liu, Houquan& Qiu, Junling& Fan, Haobo& Zhang, Qian& Hu, Zhinan…[et al.]. Stress Analysis of CFG Pile Composite Foundation in Consolidating Saturated Mine Tailings Dam. Advances in Materials Science and Engineering. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1096125
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1096125