Model Test Research on the End Bearing Behavior of the Large-Diameter Cast-in-Place Concrete Pile for Jointed Rock Mass
Joint Authors
Cai, Jingwei
Tang, Aiping
Yin, Xinsheng
Tao, Xiaxin
Tao, Shibo
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-30
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
For large-diameter, cast-in-place concrete piles, the end bearing capacity of a single pile is affected by discontinuous surfaces that exist in natural rock masses when the bearing layer of the pile end is located in the rock layer.
In order to study the influence of the jointed dip angle on the bearing characteristics of the pile end, the discrete element models are adopted to simulate the mechanical characteristics of the jointed rock masses, and the model tests of the failure mode of the jointed rock masses were also designed.
The results of the numerical calculations and modeling tests show that the joints, which have a filtering effect on the internal stress of the bedrock located at the pile end, change the load transferring paths.
And the failure mode of the jointed rock foundation also changes as jointed dip angle changes.
The rock located at the pile end generally presents a wedge failure mode.
In addition, the Q-S curves obtained by model tests show that the ultimate end bearing capacity of a single pile is influenced by the jointed dip angle.
The above results provide an important theoretical basis for how to correctly calculate end resistance for a cast-in-place concrete pile.
American Psychological Association (APA)
Cai, Jingwei& Tang, Aiping& Yin, Xinsheng& Tao, Xiaxin& Tao, Shibo. 2016. Model Test Research on the End Bearing Behavior of the Large-Diameter Cast-in-Place Concrete Pile for Jointed Rock Mass. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1112236
Modern Language Association (MLA)
Cai, Jingwei…[et al.]. Model Test Research on the End Bearing Behavior of the Large-Diameter Cast-in-Place Concrete Pile for Jointed Rock Mass. Mathematical Problems in Engineering No. 2016 (2016), pp.1-15.
https://search.emarefa.net/detail/BIM-1112236
American Medical Association (AMA)
Cai, Jingwei& Tang, Aiping& Yin, Xinsheng& Tao, Xiaxin& Tao, Shibo. Model Test Research on the End Bearing Behavior of the Large-Diameter Cast-in-Place Concrete Pile for Jointed Rock Mass. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1112236
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112236