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山区地形、地质条件一般比较复杂,地质灾害多。山区低等级公路线形设计要积极把握地形、地质特点,综合选用能保证服务水平均衡、连续且适应地形的技术指标。山区公路线形组合设计应遵循一定的原则,追求道路与周围环境的协调统一,在此基础上做出合理的线形设计。
Mountainous terrain, geological conditions are generally more complicated, more geological disasters. Linear design of mountainous low grade highway should actively grasp the terrain and geological features, and comprehensively select the technical indexes that can ensure the service level to be balanced, continuous and adapt to the terrain. The design of linear combination of mountainous roads should follow certain principles and pursue the harmonization of the road and the surrounding environment. Based on this, a reasonable linear design should be made.