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本文结合某一级公路的平交口施工实例,根据路桥过渡段路基路面的具体施工要求,对项目施工技术的应用进行了详细论述,为该技术的应用分析提供参考。该项目地质环境非常复杂,路桥过渡段的路基路面沿着黄河西岸进行铺设,路段长达68km,车速限制为60km/h以下,路基的宽度为24m。分离式的过渡段路基的宽度为12m,全桥桥涵共计60余座。由该项目的特点可知,针对桥头跳车的问题,可以通过采用CFG桩的地基方式进行解决,采用ADINA软件构建合适的三维立体模型,而后对各参数对CFG沉降的影响进行分析,结合该线某一路桥过渡段软弱地基采用CFG桩地基的处理方案分析。该路经过河谷低洼浅滩区区域,沿河西岸分布,地
According to the construction example of the level crossings of a highway, this paper discusses the application of the project construction technology in detail according to the specific construction requirements of subgrade and pavement in the transitional sections of road and bridge, and provides reference for the application and analysis of the technology. The geological environment of the project is very complex. The roadbed and pavement of the transitional section of the road and bridge are laid along the west bank of the Yellow River, with a length of up to 68km, a speed limit of 60km / h and a width of 24m. The width of the transitional subgrade is 12m and the total number of bridges and culverts is more than 60. According to the characteristics of the project, the problem of bridgehead jumping can be solved by using the foundation of CFG piles. The ADINA software is used to construct a suitable three-dimensional model, and then the influence of each parameter on CFG settlement is analyzed. Combined with this line Analysis on Treatment Scheme of CFG Pile Foundation on Soft Foundation in Transitional Section of a Bridge. The road through the valleys area of low-lying shoals, distribution along the West Bank, to