罗布泊盐湖岩盐路基设计及施工方法研究

哈罗铁路罗布泊段经过盐湖湖积平原区,地层主要以硫酸盐岩盐为主,由于渗水土填料运距太远以及从环境保护的角度,此段需采用岩盐路基通过。阐述硫酸盐岩盐的危害,分析其实施的可行性和必要性,对路基本体设计、地基处理和排水系统设计分别作了论述。工程的成功实施填补了我国硫酸盐岩盐路基设计的空白,为哈罗延伸至若羌铁路修建提供必要的技术积累,对岩盐路基设计和施工具有一定的指导作用。

Research on Design and Construction Method of Halite Subgrade of Lop Nor Salt Lake

Lop Nor Railway is a part of Hami-Lop Nor Railway which goes across salt lake lacustrine plain area,the stratum is mainly composed of sulfate-halite.Because the haul distance for permeable subgrade filler is too far,and considering the concept of environment protection,halite subgrade was used for this part.This article expounds the sulfate-halite hazard,analyzes the feasibility and necessity of constructing sulfate-halite subgrade,discusses subgrade design,ground treatment and drainage design respectively.The success implementation of the project fills up the blank of sulfate-halite subgrade design,provides the necessary technical accumulation for Hami-Lop Nor Railway extending to Ruoqiang,and can play a guiding role in design and construction for halite subgrade.