摘要
Abstract
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.关键词
岩盐路基/复合土工膜/溶蚀孔洞/重型碾压Key words
halite subgrade/ composite geomembrane/ solution porosity/ heavy compaction分类
交通工程
