Study on Shear Strength Characteristics of Gravel Pile Composite Foundation
The vibro-compacted gravel pile method,as an eco-friendly foundation reinforcement technol-ogy,is widely used in underwater soft soil foundations.This method not only improves the bearing capac-ity of soft soil foundations but also enhances the shear strength of the soil.This paper mainly analyzes the control factors of the construction quality of using the vibro gravel pile method to reinforce soft soil founda-tion,establishes the relationship between the dynamic probing number-density-shear strength indicators of the pile body,and studies the shear strength characteristics of the pile body.The research shows that the compaction current and construction sequence are key factors affecting the compactness and uniformity of gravel pile construction.The relationship between the number of dynamic probing blows and the shear strength of pile body type is established through experimental data analysis,and the shear strength is ob-tained through on-site tests,which facilitates the quantitative analysis of the overall stability of the bank slope and provides reference for the design,construction,and research of similar projects.
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