Advances in Civil Engineering· 2018Q2
Experimental and Application Study on Underpinning Engineering of Bridge Pile Foundation
- 18citations
- Q2SCImago
- 2018year
Short summary
A new formula for calculating the shear-bearing capacity of pile foundation underpinning structures was developed and validated through physical models, showing good agreement with experimental results.
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Key points
- Developed and validated a new formula for calculating the shear-bearing capacity of pile foundation underpinning structures.
- Physical models and progressive repeated static loading tests were conducted on local node models.
- Planting bars were found to play a major role in shear resistance.
- Hoop reinforcement rate can improve the shear capacity of the interface.
AI-generated from the title and abstract; the full text is not read.
Abstract
In order to study the theory and application of the pile foundation underpinning technology, 3 local node models of underpinning structures with a similarity ratio of 1/1 were made and the progressive repeated static loading tests were conducted. The shear and antislip properties of the joint are studied, and the improved formula for calculating the shear capacity is proposed. The results show that a planting bar plays a major role in shear resistance, and the hoop rate can improve the shear capacity of the interface. The new formula for calculating the shear‐bearing capacity is proposed, and the calculation results of the formula of shear‐bearing capacity are in good agreement with the experiment results. It is completely feasible to use this formula to calculate the shear‐bearing capacity of the pile foundation underpinning structure. During the test, the bearing capacity of the model is good, which proves the reliability of the underpinning technology is good, and it can provide experimental and theoretical basis for the underpinning of similar projects.
The authors' abstract, as published at the source. Advances in Civil Engineering, 2018 · DOI ↗
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Field: General Engineering
General EngineeringEngineering