深厚淤泥地层现浇箱梁支架基础施工过程中的支护方案分析

Supporting Structure Foundation Construction of Cast-in-Place Box Girders Over Thick Soft Mucky Soils

深厚淤泥地层大型工程的修建中最大难题之一就是对软土地基的处理,这不仅严重影响工程建设过程中的稳定和安全,并且也对工程建成以后长期的安全性有着重要作用。能够进行深厚淤泥地层地基处理的方法多种多样,但是同一地质条件下不同处理方式各有其优缺点,从深厚淤泥地层现浇箱梁处治全过程出发并根据重点观测断面现场监测结果,评价了不同地基处治工程区软基的加固效果,对地基处理后的沉降观测与控制进行分析,为类似地质条件下工程提供评价依据。

One of the biggest challenges of large projects over soft mucky soils is the soil improvement to meet the post construction performance and safety requirements.Many soil improvement methods are available to strengthen the soft mucky soil strata with various advantages and disadvantages.This paper presents a case history of the soil improvements of the supporting structure foundations for the cast-in-place box girders using different methods.Throughout the settlement monitoring at different soil depths after the treatment,different soil improvement methods are evaluated.