摘要
平原软基地区高等级公路拓宽时,新老路基间微小的差异变形就会导致产生相关病害。而在相关处治措施中,轻质填料法是较为合适的一种。EPS(发泡聚苯乙烯)填料,具有超轻质、耐压、耐水、抗老化等特点。理论分析和工程验证均表明,采用EPS填筑拓宽部分路堤,对下卧土体的影响深度要明显浅于常规填土路堤,可显著减小拓宽路堤下卧地基土层的侧向位移,大幅度降低新路基的总沉降量,从而大大减小新老路基不协调变形,是平原软基地区高等级公路拓宽时非常有效的处治措施之一。
Among high-level road-widening engineerings in plane soft foundation area,the little incoordinate deformation between the existing subgrade and the widening one will lead distresses.Lightweight filler embankment is one of the fit treating methods.EPS(expanded polystyrene)filler has such properties as super lightweight,compression resistance,water resistance and anti-aging.The theoretical analyse and engineering validation show that,when new embankment filling with EPS,the depth of affection on under layer earth is shallower than normal filler,obviously minishing the side displacement,the total settlement and the incoordinate deformation.So filling road-widening embankment by EPS is one of the efficacious methods in such engineerings.
出处
《塑料》
CAS
CSCD
2004年第6期74-78,11,共6页
Plastics
