高速公路改扩建工程路基加宽综合处治方案

Highway Changing Extension Project Roadbed Broaden Synthesis Punishment Plan

旧路加宽改造对提高既有道路等级和改善路网结构具有较高的技术经济价值。高速公路加宽改造工程的方案设计需进行多方案的比选,采取技术可行、确保质量、控制成本的综合处治方案。结合工程实践,从基底清淤、换填与冲击碾压,路基填料的选择,台阶开挖与构筑路基加宽等几个方面进行论述,并提出具体处治方案。

The old road broaden transforms to enhances already has the category of roads and the improvement road network structure has the high technical economy value. When the highway widens the improvement project the project design must carry on the multi-plans compared to elect, to adopt the technology to be feasible, guarantee quality, control cost synthesis punishment plan. The union project practice, from the basis desilting, trades fills in with attacks the roller compaction, the roadbed padding choice, the stair excavates with the construction roadbed broaden and so on several aspects carries on the elaboration, and proposes the concrete punishment plan.