基于虚拟地理环境的山区铁路施工便道设计与方案比选方法  

Method for design and scheme comparison of railway construction access roads in mountainous areas based on virtual geographical environment

作　　者：杨斌 张恒 刘博锦 方伟 李嘉轩 YANG Bin;ZHANG Heng;LIU Bojn;FANC Wei;LI Jiaxuan(Gansu Tianlong Railway Co.,Ltd.,Lanzhou 730030,China;China Railway Design Corporation,Tianjin 300308,China;School of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 610031,China;China Railway Economic and Planning Research Institute,Beijing 100038,China)

机构地区：[1]甘肃天陇铁路有限公司,兰州730030 [2]中国铁路设计集团有限公司,天津300308 [3]西南交通大学地球科学与环境工程学院,成都610031 [4]中国铁路经济规划研究院有限公司,北京100038

出　　处：《铁路工程技术与经济》2024年第3期36-40,共5页Railway Engineering Technology and Economy

基　　金：国家自然科学基金项目(42201445);中国国家铁路集团有限公司科技研究开发计划(L2022G013);中国铁路设计集团有限公司重点课题(2022A02538002,2023A0253818,2022A02538013)。

摘　　要：为了解决山区铁路工程环境险峻处施工便道难以快速设计与直观展现的问题,本文基于虚拟地理环境提出一种山区铁路施工便道设计与方案比选方法。首先,对DEM数据进行规则格网划分,统计各格网的高程差从而给出填挖方量的计算方法;然后,将施工便道分段,设置边坡类型检测点,判断边坡类型;最后,在虚拟地理环境中进行施工便道设计,并计算相关经济效益信息,据此进行设计方案对比和分析。以天陇铁路施工便道设计与方案比选为例开展研究分析,结果表明,本文方法能在虚拟地理环境中一键快速生成施工便道模型,数据统计信息为准确开展便道方案的比选和辅助决策提供技术支撑。In order to solve the problem of difficulty in rapid design and intuitive display of construction access roads in steep mountainous railway engineering environments,this paper proposes a method for design and program comparison of mountainous railway construction access roads based on the virtual geographical environment.First,the DEM data is divided into regular grids,and the elevation difference of each grid is counted to provide a calculation method for the fill and excavation volume;then,the construction access road is segmented,and slope type detection points are set to determine the slope type;finally,Design construction access roads in a virtual geographical environment,and calculate relevant economic benefit information,and compare and analyze design plans based on this.An experiment was carried out using the Tianlong Railway construction access road design and scheme comparison as an example.The results show that the method in this paper can quickly generate a construction access road model with one click in a virtual geographical environment.The data and statistical information provide accurate comparison and selection of access road schemes and auxiliary decision-making.

关 键 词：虚拟地理环境 施工便道 虚拟设计 方案比选 辅助决策 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] U215.9[自动化与计算机技术—计算机科学与技术]