冰水堆积土路用压实特性研究

Study on the characteristics of the compaction used on ice water accumulation soil road

目的研究冰水堆积土的路用压实性能,为同类工程提供参考。方法进行了路基填筑现场试验,采用压实质量检测法检测压实效果,并使用沉降差法验证检测效果。结果研究结果表明:冰水堆积土宜选用光滑振动压实机械碾压,适当降低碾压速度,可提高压实效果,冰水堆积土上铺设砂卵石粗粒料后碾压,可以提高冰水堆积土的压实性能。结论可以通过选用合适的压实机械与碾压速度来优化冰水堆积土填料路基设计及施工参数。

Aim To investigate the characteristics of the compaction used on ice water accumula tion soil road and provide references for similar projects. Methods The subgrade filling field test was carried out. In addition, the compaction quality inspection is adopted to check the degree of compac- tion and the differential settlement is used to validate the check results. Results The research results shows that it is best to use smooth vibrating compaction machinery to compact ice water accumulation soil, and proper reduction of the rolling speed can improve the compaction effect. The compaction property of the ice water accumulation soil can be improved when the ice water accumulation soil is compacted after spreading coarse sand and cobble. Conclusion Suitable compaction machinery and rolling speed can be selected to optimize the design and construction parameters of the ice water accu- mulation soil subgrade.