基于法标非洲热带地区红土粒料压实特性研究

基于法标对非洲热带草原、热带雨林两种不同气候条件下形成的典型红土粒料进行压实特性试验，分析其区域分布的差异性和压实破碎机理。结果表明:红土粒料粒径组成、液塑限、CBR等基本特性在区域分布上具有一定差异，热带草原区红土粒料基本性能略优于热带雨林区。同理，0.5～1.0 m深范围内红土粒料基本性能也略优于1.0～1.5 m层。在对红土粒料路用性能的研究中，不仅要关注其在天然状态下粒径组成情况，在压实过程中粒径组成发生的剧烈变化更值得关注。

Research on Compaction Characteristics of Laterite Aggregates in Tropical Africa Based on French Standards

Based on French standard, the compaction characteristics of typical laterite aggregates formed under two different climatic conditions of African savannah and tropical rainforest were tested, and the regional distribution differences and the compaction mechanism were analyzed. The results show that there are some differences in the regional distribution of the basic characteristics such as particle size composition, liquid plastic limit and CBR of laterite aggregates, and the basic properties of laterite aggregates in the tropical grassland area are slightly better than those in the tropical rain forest area. In the same way, the basic performance of laterite aggregates in the depth of 0.5 ~ 1.0 m is slightly better than that in the depth of 1.0 ~ 1.5 m. In the study of the road performance of laterite aggregates, we should not only pay attention to the particle size composition in the natural state, but also pay more attention to the dramatic change of particle size composition in the compaction process.