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首页> 外文期刊>American Journal of Engineering Research >Development of Mechanistic-Empirical Pavement Design for Tropical Climate Using Cement-Treated Base Layer
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Development of Mechanistic-Empirical Pavement Design for Tropical Climate Using Cement-Treated Base Layer

机译：利用水泥处理的基础层开发热带气候的机械-经验路面设计

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A mechanistic-empirical pavement design method is developed characterising cement-treated base layers for pavement design in Nigeria or other similar tropical and subtropical countries. Asphalt Concrete surface, Subbase and Aggregate base were characterised based on back calculation data from Claros et al (1986) while cement-treated base layer was based on modulus tests that had been conducted by past researchers. Failure criteria for the Asphalt Concrete fatigue failure and the subgrade rutting failure were based on those by Claros and Ijeh (1987) for Nigerian pavements. Cracking criterion used for the cement-treated layer was that developed by Otee et al. (1982). The comparison between the Soil-Cement and Aggregate base showed that at a low Equivalent Single Axle Load (ESAL) (0.5 million repetitions was considered), the use of Aggregate base was better than Soil-Cement base. That for Aggregate base and Cement-Treated Gravel Base showed that the Cement-Treated Gravel Base was better than the Aggregate base at high ESAL (2.5 million repetitions was considered)
机译：在尼日利亚或其他类似的热带和亚热带国家，开发了一种机械-经验路面设计方法，以表征水泥处理的基础层，用于路面设计。沥青混凝土的表面，底基层和集料基层是根据Claros等人（1986）的反算数据进行表征的，而水泥处理过的基层则是根据过去研究人员进行的模量测试确定的。沥青混凝土疲劳破坏和路基车辙破坏的破坏标准是基于Claros和Ijeh（1987）对尼日利亚路面的破坏标准。用于水泥处理层的开裂标准是由Otee等人提出的。 （1982）。水泥土和骨料基础的比较表明，在低等效单轴载荷（ESAL）（考虑50万次重复）的情况下，骨料基础的使用要好于水泥土基础。对于骨料基和水泥处理的碎石基料，表明在高ESAL条件下，水泥处理的碎石基比骨料基更好（考虑了250万次重复）

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