高风险多因素下高原铁路施工道路模型研究

Research on the Construction Road Model of the Plateau Railway under the Condition of High-risk and Multi-factor

研究目的:高原铁路具有地形复杂多变、高差起伏大、自然灾害分布广、高寒缺氧、生态脆弱等特点,施工道路方案在满足一般原则前提下需要充分考虑多风险因素。本文通过研究用于确定方案和标准的高原铁路施工道路模型,旨在为高原铁路建设施工顺利开展、提高我国高原铁路项目施工道路建设水平提供技术支持。研究结论:(1)给出了施工道路概念并分析了地震灾害等风险因素;(2)将施工道路分级为一级至四级施工道路,明确其通行能力和适用范围;(3)建立包括分级选用、设计速度、车道面宽、建筑限界、抗震防洪、用地范围等因素的道路模型;(4)本文研究可为后续高原铁路施工道路建设提供借鉴。

Research purposes:The plateau railway has the characteristics of complex terrain,large elevation difference fluctuation,wide distribution of natural disasters,alpine hypoxia,and fragile ecology.The construction road scheme needs to fully consider multiple risk factors under the premise of meeting the general principles.This paper studies the plateau railway construction road model used to determine the scheme and standard,aiming to provide technical support for the smooth development of plateau railway construction and improve the construction road construction of plateau railway projects in China.Research conclusions:(1)Define the concept of construction road and seismic disaster risk factors.(2)Classify the construction road into one to four levels,and clarify the capacity and scope of application.(3)Establish a road model including grading selection,design speed,lane width,building boundaries,seismic flood control,land use and other factors.(4)This paper can provide reference for subsequent railway projects.