Taking a highway widening and reconstruction project as a case study, this paper analyzed the causes of uneven settlement of roadbed in highway roadbed widening and transformation, analyzed the theory and mechanism of geotechnical reinforcement, and then analyzed the specific application of geotechnical reinforcement treatment technology combined with the case, in order to improve the construction quality of widening and transformation of existing highways in the province.%以省内某高速公路拓宽改造项目为研究案例,分析了高速路基拓宽改造中路基不均匀沉降的原因,介绍了土工加筋理论及作用机理,并结合案例对土工加筋处理技术的具体应用进行分析,以提升省内既有高速公路的拓宽改造施工质量.
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