Mechanism Analysis on Combined Toe-and-side Grouting for Cast-in-situ Piles

DOI

10.2991/icmmse-16.2016.58How to use a DOI?

Keywords

Cast-in-situ Pile, Post-grouting, Bearing mechanism, Combined Toe-and-side Grouting

Abstract

Based on the construction technology of post-grouting, the load transfer mechanism, bearing capacity increasing mechanism and variation of pile-side and pile-toe resistance of combined toe-and-side grouted pile are analyzed. The mechanism of increasing of pile-side resistance and pile-tip resistance by post-grouting are discussed. It is believed that the increase of pile-side resistance by post-grouting relies largely on the improvement of pile-soil interface, improvement of mechanical property of pile-around soil and expanded-base effect of increased pile diameter. The increase of pile-tip resistance by pile-toe post-grouting mainly depends on improved mechanical property of pile-toe soil, change of pile-end destruction form, and expanded-base effect by increased pile-toe diameter.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jianfeng Liang
AU  - Xinquan Wang
AU  - Yunliang Cui
AU  - Wenkai Qiao
PY  - 2016/03
DA  - 2016/03
TI  - Mechanism Analysis on Combined Toe-and-side Grouting for Cast-in-situ Piles
BT  - Proceedings of the 2016 International Conference on Mechanics, Materials and Structural Engineering
PB  - Atlantis Press
SP  - 342
EP  - 345
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmse-16.2016.58
DO  - 10.2991/icmmse-16.2016.58
ID  - Liang2016/03
ER  -