埃塞俄比亚至吉布提铁路 Dire Dawa-Adigala 段路基填料研究

摘要

埃塞俄比亚至吉布提铁路项目 Dire Dawa-Adigala 地段沿线缺乏合格天然填料，结合该段周边填料调查的情况，探讨了在路基缺乏合格填料的情况下，路基本体采用砂类土＋包边土作为填料进行填筑方案的可行性。通过工程环境分析及工程经济性对比，最终确定类似地区气候环境下的包边土厚度方案。%Qualified natural filling is lacking along the line of the section of Dire Dawa-Adigala in Ethiopia-Djibouti Rail-way Project.According to the investigation situation of filling in the periphery,this paper is engaged the studying on the feasibility of using wrapping and sandy soil as filling of the part below the subgrade under the condition of lacking of quali-fied filling in subgrade.Comparing with the environmental impact analysis and engineering economics,it is found that the thickness of wrapping soil is determined in the similar typical climate condition.