院报 ›› 2024, Vol. 41 ›› Issue (8): 38-46.DOI: 10.11988/ckyyb.20230343

• 水土保持与生态修复 • 上一篇    下一篇

山区“铁路工程-水土流失”系统关键要素识别

鲍学英(), 张程皓, 贺振霞, 李亚娟, 沈杜华, 陈慧鑫   

  1. 兰州交通大学 土木工程学院,兰州 730070
  • 收稿日期:2023-04-06 修回日期:2023-07-03 出版日期:2024-08-28 发布日期:2024-08-13
  • 作者简介:

    鲍学英(1974-),女,宁夏中卫人,教授,博士,主要从事绿色铁路及工程管理等方面的研究。E-mail:

  • 基金资助:
    中央引导地方科技发展资金项目(22ZY1QA005); 国家自然科学基金项目(51768034)

Identification of Key Elements of Soil Erosion in Railway Engineering in Mountainous Areas

BAO Xue-ying(), ZHANG Cheng-hao, HE Zhen-xia, LI Ya-juan, SHEN Du-hua, CHEN Hui-xin   

  1. School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
  • Received:2023-04-06 Revised:2023-07-03 Published:2024-08-28 Online:2024-08-13

摘要:

建立了一种识别山区铁路工程水土流失关键要素的模型。首先确定易引发水土流失的铁路重点专业,分析“铁路工程-水土流失”的交互影响关系,识别“铁路工程-水土流失”要素,并构建其指标体系。然后基于复杂网络模型,结合熵权法、层次分析法(IGAHP)法、DWNodeRank算法构建一种多层网络关键要素识别模型。最后以山区某铁路工程为例,该山区铁路工程关键要素有弃渣处置、路基边坡防护、路基截排水沟布设等,水土保持性能关键要素有大型临时土地扰动、渣土弃置等,水土流失关键要素有水文、地表植被、流失物质。在山区铁路工程水土流失控制时需重点针对以上关键要素进行水土保持措施和工程结构的设计,以期有效地控制区域水土流失,改善和恢复破坏的生态环境。

关键词: 铁路工程, 水土流失, 复杂网络, 关键要素, 指标体系

Abstract:

A method to identify key factors contributing to water and soil erosion in mountainous railway projects is proposed. Initially, the disciplines prone to causing erosion are determined. Subsequently, the interactive relationship between railway projects and water and soil erosion is analyzed to identify essential elements and construct an indicator system. Furthermore, a multi-layer network model to identify key elements is developed using a complex network model combined with the entropy weighting method, IGAHP (Improved Group Analytic Hierarchy Process) method, and DWNodeRank algorithm. A specific mountainous railway project is examined as a case study. The key elements for mountainous railway project include residue disposal, embankment slope protection, and drainage ditch layout. Key elements for soil and water conservation performance include large-scale temporary soil disturbance and residue disposal.Factors influencing soil and water loss encompass hydrology, surface vegetation, and sedimentation. Emphasizing these key elements in water conservation measures and engineering design is crucial for effectively controlling soil and water erosion and enhancing the ecological environment in mountainous railway projects.

Key words: railway engineering, soil erosion, complex networks, key elements, indicator system

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