Modification of the Constant Coefficient Method for Horizontal Reaction of Foundation of Rigid Rock-Socketed Piles

WANG Hongqing; HUANG Yue; ZHAO Xueliang; HE Runcai; LI Yu; TIAN Weihui

doi:10.3724/j.gyjzG22091912

Volume 54 Issue 5

May 2024

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WANG Hongqing, HUANG Yue, ZHAO Xueliang, HE Runcai, LI Yu, TIAN Weihui. Modification of the Constant Coefficient Method for Horizontal Reaction of Foundation of Rigid Rock-Socketed Piles[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(5): 212-219. doi: 10.3724/j.gyjzG22091912

Citation:

WANG Hongqing, HUANG Yue, ZHAO Xueliang, HE Runcai, LI Yu, TIAN Weihui. Modification of the Constant Coefficient Method for Horizontal Reaction of Foundation of Rigid Rock-Socketed Piles[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(5): 212-219. doi: 10.3724/j.gyjzG22091912

Citation:

WANG Hongqing, HUANG Yue, ZHAO Xueliang, HE Runcai, LI Yu, TIAN Weihui. Modification of the Constant Coefficient Method for Horizontal Reaction of Foundation of Rigid Rock-Socketed Piles[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(5): 212-219. doi: 10.3724/j.gyjzG22091912

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Modification of the Constant Coefficient Method for Horizontal Reaction of Foundation of Rigid Rock-Socketed Piles

doi: 10.3724/j.gyjzG22091912

1. China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, China;
2. Guangzhou Municipal Engineering Design & Research Institute Co., Ltd, Guangzhou 510095, China;
3. Key Laboratory of Concrete and Prestressed Concrete Structure of MOE, Southeast University, Nanjing 211189, China;
4. Northwest Engineering Corporation Limited, Xi'an 710065, China

Received Date: 2022-09-19
Available Online: 2024-06-22

Abstract

Abstract

With the continuous development of construction scale and the offshore engineering, the loads on pile foundations have been becoming more and more complicated and the effect of lateral loads on pile foundations have been becoming more and more notable. The calculation method for the horizontal reaction coefficient of foundation of rock-socketed piles, which is suggested by Specifications for Design of Foundation of Highway Bridges and Culverts JTC 3363—2019, is too simple, and the size effect of large-diameter rock-socketed piles is not well considered. According to the mechanical characteristics of rigid rock-socketed piles, considering the effect of vertical skin friction, a calculation method to determine the response of rigid rock-socketed piles under lateral loads was proposed based on the assumption of a constant coefficient of horizontal reaction of foundation. The calculation results were more accurate compared with the results without considering vertical skin friction. Based on field test data, the numerical models of rigid rock-socketed piles were constructed by a finite difference software, and the parameter analysis on various factors influencing the rock-pile interaction including the mechanical and physical parameters of rock and piles was performed. Eventually, a fitting formula for the horizontal reaction coefficient based on the assumption of a constant coefficient of horizontal reaction of foundation was proposed.
- rock-socketed pile,
- horizontal bearing capacity,
- constant coefficient method for horizontal reaction of foundation

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References(15)

References

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