塑料排水板结合堆载预压软基处理沉降监测技术

Monitoring Technology of Plastic Drainage Board Combined with Piled Preloaded Soft Foundation Treatment

塑料排水板结合堆载预压软基处理方式能有效排出土体孔隙的水分以及空气,加快土体沉降、提升其固结力,实现提升软土地基强度的目的。因哥斯达黎加公路建设中还未涉及此类处理软弱土地基的施工工艺,所以,本次需要制定一套较为完整的施工检测验收标准即依据设计的沉降监测技术。本论文将哥斯达黎加32号公路改扩建工程K120+100-K120+200作为实例对塑料排水板结合堆载预压软基处理沉降监测工艺进行了具体论述,并已在当地成功应用。

Plastic drainage board combined with the preloaded soft foundation treatment method can effectively discharge the moisture and air in the pores of the soil,accelerate the settlement of the soil,improve its consolidation force,and achieve the purpose of increasing the strength of the soft ground.Because Costa Rica road construction has not yet involved such construction techniques for dealing with weak soil foundations,this time it is necessary to develop a relatively complete set of construction inspection and acceptance standards and the design-based settlement monitoring technology.In this paper,Costa Rica Highway No.32 reconstruction and expansion project K120+100-K120+200 is taken as an example to discuss the monitoring technology of plastic drainage board combined with preloaded soft foundation treatment,and it has been successfully applied locally.