摘要
围绕长沙绕城高速清淤换填路段进行分析,采用强夯法与铺设土工格栅相结合的处治措施,进行了强夯法处治夯击能量选择、单点夯击次数、单层夯击遍数、夯击点布置以及间隔时间等施工参数设计,土工格栅铺设设计。采用承载板试验对综合处治效果进行了评价。试验结果表明,处治后路基沉降曲线有明显放缓趋势;本施工参数设计适用于长沙绕城高速填方路基土质。
This paper study about dredging for fill subgrade in Changsha expressway,the method of dynamic compaction and geotechnical grille been used to punish the drift problem.This paper carry on the design about dynamic compaction Treatment tamping energy,Single-point tamping times,single layer tamping times,tamping point layout and interval time,and the laying design about geotechnical grille. The authors evaluated the effect of punish by lading plate test.The experimental results showed that the trend of subgrade settlement curve has slowed markedly;The construction parameters design is used in Changsha highway.
出处
《公路工程》
北大核心
2014年第1期165-168,共4页
Highway Engineering
关键词
路基
清淤换填
强夯
土工格栅
承载板
subgrade
dredging for fill
dynamic compaction
geotechnical grille
loading plate
