荆州软土地基固结特性分析与施工建议

Analysis of Consolidation Characteristics and Construction Suggestions for Soft Soil in Jingzhou

文中以荆州某路基为背景,从荆州市地质构造、软土发育和项目实际情况出发,结合太沙基渗流固结理论,对荆州市的长江第一阶地第四系全新统冲积层淤泥质粉质黏土软基不进行处理,进行快速固结沉降的影响因素分析,结果表明:初始堆载、土的渗透系数及排水条件都会影响软土的固结沉降,调整初始荷载大小对前期固结速度影响较大,对改善软土的排水条件具有重大意义。最终对软土路基设计和快速固结施工提出了相关建议,希望为后续类似路基工程提供参考。

This paper takes a roadbed construction project in Jingzhou as the research object, from the geological structure of Jingzhou city,soft soil development and combined with the actual situation of the project, using the theory of K.Terzaghi seepage consolidation, the first terrace of the Yangtze River Quaternary Holocene alluvial layer of silty powdery clay soft foundation in Jingzhou city is not treated, the rapid consolidation settlement influence factors analysis, the results show that the initial loading, soil permeability coefficient and drainage conditions will affect The results show that the initial loading, soil permeability coefficient and drainage conditions can affect the consolidation settlement of soft soil, and it is of great significance to adjust the initial loading size for the pre-consolidation rate and improve the drainage conditions of soft soil. Finally, relevant suggestions are made for the design and rapid consolidation construction of soft soil roadbeds, which are expected to provide references for similar roadbed projects in the future.