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结合黄万铁路综合A-3标实例,介绍从软土地基上填筑路堤施工的原地面处理、砂砾垫层摊铺、袋装砂井施工、铺设土工格栅、路堤本体填筑施工方法,以及沉降观测及监理,针对渤海湾滨海地区的冲相沉积层和上更新统冲积层的软土力学特性,设计一套完整的复合地基加固技术方案,为今后高填软土路基的加固提供了工程实践经验。
Combined with the Huang-Wan Railway Comprehensive A-3 standard example, this paper introduces the original ground treatment of embankment construction on soft soil foundation, paving gravel cushion, construction of bagged sand wells, laying of geogrids and embankment ontology construction method, As well as the settlement observation and supervision. Aiming at the soft mechanics properties of red-facies sediments and Upper Pleistocene alluvium in the coastal area of Bohai Bay, a complete set of technical schemes for the reinforcement of composite foundation is designed, which provides the foundation for the future consolidation of soft soil subgrade Engineering practice experience.