Experimental Study on the Lateral Earth Pressure of Translational Retaining Structures Adjacent to Composite Foundation of Long-Short Piles

GUO Yuancheng; GU Shaochuang; WEI Yanqing; LI Mingyu

doi:10.13204/j.gyjzG21042505

Volume 52 Issue 5

Jul. 2022

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2022 > 52(5): 174-178

GUO Yuancheng, GU Shaochuang, WEI Yanqing, LI Mingyu. Experimental Study on the Lateral Earth Pressure of Translational Retaining Structures Adjacent to Composite Foundation of Long-Short Piles[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(5): 174-178. doi: 10.13204/j.gyjzG21042505

Citation:

GUO Yuancheng, GU Shaochuang, WEI Yanqing, LI Mingyu. Experimental Study on the Lateral Earth Pressure of Translational Retaining Structures Adjacent to Composite Foundation of Long-Short Piles[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(5): 174-178. doi: 10.13204/j.gyjzG21042505

Citation:

GUO Yuancheng, GU Shaochuang, WEI Yanqing, LI Mingyu. Experimental Study on the Lateral Earth Pressure of Translational Retaining Structures Adjacent to Composite Foundation of Long-Short Piles[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(5): 174-178. doi: 10.13204/j.gyjzG21042505

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Experimental Study on the Lateral Earth Pressure of Translational Retaining Structures Adjacent to Composite Foundation of Long-Short Piles

doi: 10.13204/j.gyjzG21042505

1. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China;
2. Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471000, China

Received Date: 2021-04-25
Available Online: 2022-07-23
Publish Date: 2022-07-23

Abstract

Abstract

A model test was conducted to analyze the lateral earth pressure behind a translating retaining structure near an existing composite foundation of long-short piles. The results showed that when the retaining structure was translated outward, the lateral earth pressure behind the retaining structure adjacent to composite foundation of long-short piles was less than that in the natural foundation within the depth of reinforced by short piles. However, the earth pressure below the bottom of reinforcing short piles was significantly larger than that in natureal foundation. It was suggestion that the influence of the additional load transferred from the short piles should be taken into account in calculation of lateral earth pressure behind a retaining structure. It was also found that the lateral earth pressure adjacent to composite foundation with long-short piles could approximately be equivalent to the algebraic sum of the earth pressure caused by additional stress in soil between piles and additional stress from the short and long piles respectively. Based on that, a formula for calculating the lateral earth pressure behind a retaining structure adjacent to composite foundation with long and short piles was proposed.
- foundation excavation engineering,
- earth pressure,
- composite foundation with long-short piles,
- experimental study

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References

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