论文部分内容阅读
详细介绍了粒径改良路基的设计思路及现场测试方案。并通过现场测试资料,详细地分析了粒径改良路基在冻融循环下变形随时间的变化规律。结果表明:粒径改良路基变形随冻融循环过程表现出相应的冻胀和融沉变形。从时间上看,同通风路基相比,粒径改良路基在一定程度上缩短了路基的冻结时间,同时减缓了冻胀变形。
The design idea and field test scheme of improved particle size roadbed are introduced in detail. And through the field test data, the deformation of the modified particle embankment with time under the freeze-thaw cycle was analyzed in detail. The results show that the deformation of subgrade with particle size shows corresponding frost heave and thaw settlement along with the freeze-thaw cycle. From the time point of view, compared with the ventilated roadbed, the improved particle size of the roadbed to some extent, shorten the freezing time of the roadbed, while reducing the deformation of frost heave.