涵洞软土地基处理方法

Treatment Methods of Culvert Soft Soil Foundation

在软土地基上修建刚性涵洞,存在地基不均匀沉降的隐患,而软土地基处理不当会对后期施工安全产生不利影响。该文主要介绍采用换填法和预压法,结合现场施工条件以及工期安排对软土地基进行处理的方式。结果表明:2m范围内的软土地基,采用换填法和预压法都可以达到安全使用的效果,但采用预压法还可以降低施工成本。

The construction of rigid culverts on soft soil foundation generates the hazard of uneven foundation settlement,and the improper treatment of soft soil foundation will have adverse effects on the safety of construction in the later stage.This paper mainly described the treatment of soft soil foundation with the earth replacement method and pre-loading method,combined with on-site construction conditions and schedule arrangements.It was concluded that for the soft soil foundation within the range of 2m,both of the two methods can meet the effect of safe use,and the preloading method can reduce construction costs as well.