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沪嘉高速公路在软湿地基上修筑路堤,存在着高路堤对下卧层高压缩性软土的沉降和地表层过湿土的压实等技术问题。为了确保沥青混凝土和水泥混凝土路面的使用效果,对软湿地基的技术措施和表层路堤填筑的施工质量成为高速公路建设的两大课题。本文就在实施过程中采取的技术措施和取得的效果作一扼要的小结。一、水文地质概况沪嘉高速公路地处长江下游地区,沿线地区的地质时代为第四纪河口,广泛存在着
Shanghai-Jia-Jia Expressway embankment construction on soft and wet foundation, there is a high embankment on the sub-level high-compressibility of soft soil settlement and surface over-wet technology such as compaction. In order to ensure the use effect of asphalt concrete and cement concrete pavement, the technical measures of soft wet foundation and the construction quality of surface embankment filling are the two major topics of expressway construction. This article gives a brief summary of the technical measures taken in the implementation process and the results achieved. First, the overview of hydrogeology Shanghai-Jiaxing Expressway is located in the lower reaches of the Yangtze River, along the geological era of the Quaternary estuary, there is widespread