Experiments of Multi-element Composite Foundation with Steel Pipe Pile and Gravel Pile |
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Authors: | WANG Xian-zhi ZHENG Jun-jie |
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Institution: | School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China;Hubei Key Laboratory of Control Structure, Huazhong University of Science and Technology, Wuhan 430074, China |
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Abstract: | A set of self-developed apparatus for foundation physical model were utilized to conduct model tests of the multi-element composite foundation with a steel pipe pile and several gravel piles. Some load-bearing characteristics of the multi-element composite foundation, including the curves of foundation settlement, stresses of piles, pile-soil stress ratio, and load-sharing ratio of piles and soil, were obtained to study its working performances in silty sand soil. The experimental results revealed that the multi-element composite foundation with steel pipe pile and gravel pile contributed more than the gravel pile composite foundation in improving the bearing capacity of the silty fine sand. |
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Keywords: | Steel pipe pile Gravel pile Model test Multi-element composite foundation Pile-soil stress ratio Load-sharing ratio |
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