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道路设计过程中,将软路基土全部挖除换填或者加固设计路段范围内所涉及到的所有软土层无疑是避免软土路基失稳和沉降过大最为理想状态下的处理设计方案,然实际应结合工程特性及地质条件综合比对分析,合理选取处理设计方案。通过某城市次干路软路基处理设计实例,不仅较为详细介绍了换填法处理软路基的设计过程,同时显示了在浅层软路基处理过程中,换填法相对复合地基法来说更为经济,并且也指出了换填路基分层施工质量控制及路基整体强度验收标准,在一定程度上,可以为今后类似工程提供参考。
In the process of road design, all the soft soil layers involved in excavation or replacement of the soft subgrade soil in the range of the designed road sections are undoubtedly the treatment design solutions to avoid the instability and excessive settlement of the soft subgrade. However, The actual should be combined with engineering characteristics and geological conditions comprehensive comparison and analysis, reasonable selection of treatment design. The case of soft subgrade treatment in a secondary trunk road in a city not only introduces the design process of soft subgrade replacement in detail, but also shows that in the process of shallow subgrade treatment, the replacement method is more relative to the composite foundation method Economic, and also pointed out that the quality control of substandard subgrade construction and acceptance of the overall strength of embankment, to a certain extent, can provide reference for similar projects in the future.