动力固结软土地基处理路基变形测量计算研究

结合动力固结地基处理工程实践,对路基变形进行了测量分析,路基土体各分层沉降开始时增加很快,后来慢慢变缓,并沿深度递减,最大沉降量达到675 mm,在4~6 m深处淤泥土层土体水平位移大。在地基沉降计算时,提出一种动力固结路基沉降计算新方法,总沉降量计算值为651.83 mm,实测值为675 mm,两者比较相近,说明该沉降计算方法可行。

Embankment Deformation Surveying and Calculation Analysis in the Dynamic Drainage Foundation Treatment

According to the dynamic drainage consolidation foundation treatment application in the road embankment engineering,the embankments deformation surveying were executed.The embankment settlement surveyed results showed that the embankment settlement increase quickly at first,then slowed down to 675mm,and the settlement decreased along with the depth.There was lager deformation at the depth 4m~6m where the silty soil stratum existed,which showed the silty soil's low shear resistance.A new total settlement calculation method for dynamic drainage consolidation foundation treatment was presented in this paper and the parameters of this method were identified.The calculated total settlement value was 651.83mm and the surveyed total settlement value was 675mm,there was a good agreement between the calculated value and the surveyed value,which testified this method's feasibility.