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介绍了公路拓宽改建应遵循的设计原则及叶信高速公路路基拓宽改建施工技术方案,因地制宜地选择新老路基拼接处理措施,供路基拓宽改建工程参考。
The design principles to be followed in highway widening and reconstruction and the technical scheme for widening and rebuilding subgrade of Yexin Expressway are introduced. The measures for splicing old and new roadbed are selected according to local conditions, which are used as references for widening and rebuilding subgrade.