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通过对石方路基填料压实特性的分析,指出填石路基要达到较好的密实状态,必须选用大功率的压实机械。为解决石方路基填筑层厚、粒径、紧密度难以控制的质量通病,克服普通压路机存在的不足,崇左至靖西高速公路(下称崇靖路)在广西区范围内首次引进了中大YZ32K振动羊足碾作为填石路基压实机械。在试点成功的基础上,推广至全线统一使用。结果表明:该型压路机不仅在石块破碎、挤密、压实等方面效果显著,质量符合规范要求且有显著提高,而且与普通羊足碾机械组合压实成本进行了经济对比,成本相差无几,大大提高了路基填筑的速度和质量。
By analyzing the compaction characteristics of rockfill subgrade, it is pointed out that it is necessary to use high-power compaction machinery to achieve a better compacted state of rockfill subgrade. In order to solve the common quality problems of stonefloor embankment, which is difficult to control with grain size and tightness, and overcome the shortcomings of common roller, Chongzuo-Jingxi Expressway (hereinafter referred to as Chongjing Road) was first introduced in Guangxi area Zonda YZ32K vibrating sheep foot grind as a roadbed compaction machinery. On the basis of the success of the pilot, it is promoted to be used uniformly across the board. The results show that this type of roller is not only effective in stone crushing, compaction and compaction, but also has significant effect on quality complying with the requirements of the code and remarkably improving. Comparing with compaction cost of ordinary sheep-foot roller compaction, , Greatly improving the speed and quality of roadbed filling.