Abstract
To study the application effect of the reinforced soil steep slope structure in the subgrade widening project of highways under the condition of limited land occupation, based on the Xinyuan expressway reconstruction and expansion project, this paper conducts field test and research on the structural state of the reinforced soil structure, and selects a natural grading subgrade widening section to compare the widening effect. Through buried sensors to monitor the settlement of the cross-section of the foundation and analyze the change law of the data after the operation. Based on the research on the structural state of reinforced soil steep slope widening subgrade, this paper summarizes the structural deformation law, construction key technology and control method in the construction process and the initial operation stage.
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