西藏地区级配碎石柔性基层组成设计与施工

为使高寒、紫外线强烈、路面冻害严重以及筑路材料缺乏的路面结构合理、经济和耐久,在西藏地区采用级配碎石柔性基层。级配碎石柔性基层在具有良好级配和适当的压实工艺下有着较高的承载力、一定的排水功能并可有效地减少反射裂缝的发生。文内介绍了中尼公路日喀则至拉孜段整治改建工程试验路段级配碎石基层的材料选择、组成设计及施工。

Design and Construction of Graded Gravel Flexible Base in Xizang Area

In order to make the pavement structure rational,economical and durable in high cold weather,strong ultraviolet radiation,serious freezing injury and insufficient paving materials,graded gravel flexible base is adopted in Xizang area.Graded gravel flexible base has higher bearing capacity,certain drainage function and can reduce reflective cracks with right grading and proper compacting technology.This paper introduces materials selection,composition design and construction of graded gravel flexible base in...