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现代地质 ›› 2021, Vol. 35 ›› Issue (01): 92-102.DOI: 10.19657/j.geoscience.1000-8527.2021.014

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基于虚拟现实技术的川藏铁路地质灾害易发区减灾选线优化:以洛隆车站为例

周杰1, 丁明涛1(), 黄涛1, 陈宁生2   

  1. 1. 西南交通大学 地球科学与环境工程学院, 四川 成都 611756
    2. 中国科学院 水利部成都山地灾害与环境研究所, 四川 成都 610041
  • 收稿日期:2020-10-20 修回日期:2020-12-10 出版日期:2021-02-12 发布日期:2021-03-12
  • 通讯作者: 丁明涛
  • 作者简介:丁明涛,男,博士,教授,博士生导师,1981年出生,地质工程专业,主要从事地质灾害风险防控与聚落减灾研究。Email: mingtaoding@163.com
    周 杰,男,硕士研究生,1994年出生,地质资源与地质工程专业,主要从事地质灾害虚拟仿真与工程减灾方面的学习与研究。Email: zhoujie@my.swjtu.edu.cn
  • 基金资助:
    国家自然科学基金项目(41871174);四川省科技厅项目(2020YFSY0013);教育部国际合作与交流司“春晖计划”项目(CH2019dmt);中央高校基本科研业务费专项项目(2682019CX19)

Optimization of Disaster-reduction Route Selection in Geological Disaster-Prone Region Along the Sichuan-Tibet Railway Based on Virtual Reality: A Case Study of Luolong Station

ZHOU Jie1, DING Mingtao1(), HUANG Tao1, CHEN Ningsheng2   

  1. 1. Faculty of Geosciences and Environment Engineering, Southwest Jiaotong University, Chengdu, Sichuan 611756, China
    2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China
  • Received:2020-10-20 Revised:2020-12-10 Online:2021-02-12 Published:2021-03-12
  • Contact: DING Mingtao

摘要:

铁路沿线频发的滑坡泥石流灾害,对山区铁路建设与安全运营造成重大影响。在山区铁路选线过程中,如何科学规划铁路线位和工程方案,真正把铁路地质灾害问题解决在成灾之前,实现科学防灾减灾,已成为国内外学者关注的焦点问题。提出一种基于虚拟现实技术(VR)的铁路地质灾害易发区减灾选线场景仿真系统,利用CAD、Sketch Up等软件制作三维地形环境模型,进行铁路沿线滑坡泥石流灾变演化仿真分析;基于Unity3D平台,应用3Ds Max、Photoshop等软件完成研究区的虚拟铁路场景模型搭建,通过网页版的UI交互设计,实现虚拟铁路场景的三维可视化体验;以新建川藏铁路洛隆车站为例,采用该方法建立了多种线路方案优化。结果表明:所建立的虚拟现实场景系统具有很好的可视性和较为流畅的交互性,可充分展示研究区铁路建设及运营安全的可行性。

关键词: 川藏铁路, 滑坡, 泥石流, 减灾选线, 虚拟现实

Abstract:

The frequent landslide and debris flow disasters along railway lines have obvious negative impacts on the railway construction and safe operation, and hinder social and economic development. During the railway route design process in mountainous regions, how to scientifically plan the line location and project scheme, and to assess the railway geological risk, has become a common concern to researchers around the world. Therefore, this paper introduces a visual simulation for railway disaster-reduction route selection scenarios in geological disaster-prone areas, on the basis of virtual reality (VR). The system first uses CAD, Sketch Up and other software to establish three-dimensional (3D) terrain environment model. According to the simulation results on landslide and debris flow disaster evolution along the railway line, the virtual railway model of the study area is built based on the Unity3D platform using 3Ds Max, Photoshop, and other software. Finally, the 3D visualization of virtual railway and terrain roaming is performed through the interactive Web interface design. Taking the Luolong station of Sichuan-Tibet Railway as an example, a variety of route schemes are established with this method. The results show that the established VR scenario has good visibility and smooth interactivity, which can fully assess the feasibility of construction and operation safety of the local mountain railway.

Key words: Sichuan-Tibet Railway, landslide, debris flow, disaster-reduction route selection, virtual reality (VR)

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