摘要
为了确定包头至鄂尔多斯高速铁路黄河特大桥合理的桥位方案,综合考虑既有桥情况、河道水文、枢纽引入、规划环保等各影响因素,提出南海子桥位方案、画匠营子桥位方案、并行G210公路桥位方案、小白河桥位方案、并行包西铁路桥位方案等5个桥位方案。首先采用定性分析的方法,从线路长度、投资、桥间距、河道、环保影响等不同角度进行对比分析;然后,运用层次分析方法进行定量分析,给各影响因素赋予不同的权重值及分数,并加权计算5个桥位方案总得分(依次为89分、82分、83分、79分、64分)。南海子桥位方案计算结果得分最高,且与定性分析结论基本一致,故予以推荐。研究结果表明,传统的定性分析与定量权重分析方法相结合,避免了定性分析的人为主观性,可较为客观地评价各方案的优劣程度。
In order to determine the reasonable bridge location of the Yellow River of the Baotou-Ordos Highspeed Railway,taking into account the existing bridge situation,river hydrology,railway junction connect,planning and environmental protection and other factors,five bridge location schemes were proposed,including Nanhaizi,Huajiangyingzi,parallel G210 Highway Bridge,Xiaobaihe,and parallel Baotou-Xian Railway Bridge.Firstly,qualitative analysis was used to compare and analyze different perspectives such as line length,investment,bridge spacing,river channels,and environmental impact;Then,using the Analytic Hierarchy Process(AHP)method for quantitative analysis,different weight values and scores were assigned to each influencing factor,and the total scores of the five bridge site schemes were calculated by weighting(89 points,82 points,83 points,79 points,and 64 points).The calculation result of the Nanhai Bridge site scheme has the highest score and is basically consistent with the qualitative analysis conclusion,so it is recommended.The research results indicate that the combination of traditional qualitative analysis and quantitative weight analysis methods avoids the subjective nature of qualitative analysis,and can objectively evaluate the advantages and disadvantages of each plan.
作者
彭建锁
PENG Jiansuo(China Railway Engineering Design and Consulting Group Co.,Ltd.,Beijing 100055,China)
出处
《铁道勘察》
2024年第1期112-116,137,共6页
Railway Investigation and Surveying
基金
中铁工程设计咨询集团有限公司科技开发计划重点课题(研2021-3)。
关键词
包鄂高铁
黄河桥位
河道水文
层次分析法
综合比选
Baotou-Ordos High-speed Railway
bridge location of the Yellow River
river hydrology
analytical hierarchy process
comprehensive comparison and selection
