Analysis on the Design of Subgrade Treatment at High Abutment
In order to ensure the construction quality of high bridgehead subgrade,this paper analyzes its design points from three aspects:material selection,structural design,and construction technology.Subsequently,tak-ing Longlan Avenue north extension(including Zhangx-in Road)engineering as the research object,the filling scheme and supporting scheme of high abutment subgrade are designed,and the foamed light soil is used for back-filling between the back of abutment and reinforced soil subgrade,and between the back of retaining wall and abutment.Finally,the calculation method of subgrade set-tlement of high abutment is expounded,and the research results can be used for reference in similar projects.
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