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加筋土挡土墙是青藏铁路重要的路基支挡类型之一,分布于错那湖、那曲、桑雄、拉萨市区等地段,全线共计11处、4 651 m,其中路堤式581 m,余为路肩式。选用高强土工格栅做拉筋,包裹式,1◇0.2的斜面结构,是青藏铁路乃至拉萨市区一道亮丽的风景,并较详细地叙述了加筋土挡土墙设计构思、考虑因素、设计、施工工序及体会。
Reinforced earth retaining wall is one of the important subgrade retaining types of the Qinghai-Tibet Railway. It is distributed in the areas of Lake Kerna, Nagqu, Sangxiong and Lhasa. There are 11 sections with a total length of 4 651 m, of which the embankment type is 581 m, I shoulder type. The selection of high-strength geogrids for lacing, wrapping, 1 ◇ 0.2 slope structure is a beautiful landscape of the Qinghai-Tibet Railway and Lhasa urban area, and describes in more detail the design concept, considerations and design of reinforced earth retaining walls Construction process and experience.