林拉高等级公路沿河线选线典型案例分析

Analysis on Typical Route Selection along River of High-grade Nyingchi-Lhasa Highway

首先介绍了林芝至拉萨公路的路线走向、地形地貌、地质概况及气候水文;然后针对该公路的自身特点阐述了沿河线选线的3个要点,即河岸选择、路线高度、桥位选择;最后,结合项目工程实践,分析了沿河线在实际操作中如何根据不同控制因素权衡路线方案。

This paper first introduces the route alignment, topography, geology, climate and hydrology of Nyingchi-Lhasa Highway, then sets forth three essentials i.e. river bank, route height and bridge location in the route selection along the river aiming at the characteristics of the highway itself, and finally analyzes how to weigh its route scheme along the river in the practical operation according to the different control factors.