青藏高原地区公路地质风险评估与建模

IF 7.3 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment Pub Date : 2024-11-01 DOI:10.1016/j.trd.2024.104422

Hong Zhang , Xin Xu , Chi Zhang , Hong-Zhi Yang , Yiik Diew Wong

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引用次数: 0

摘要

本研究识别和评估了青藏高原地区公路地质风险的时空分布，并建立了影响因素模型，以提高公路运营的安全性。该研究利用 Latent Dirichlet Allocation 模型识别风险，利用热点分析和归一化频谱熵评估风险的时空分布，并利用广义估计方程分析地质风险易感性与影响因素之间的关系。最后，应用该方法进行了案例研究。研究结果表明，山区地质灾害可能影响到距离公路 2,000 米以内的区域。路基和隧道路段以及低等级公路更容易受到山区地质灾害的影响，而高等级公路路基路段的冻土热稳定性往往较低。这项研究为工程与地质环境之间的耦合效应提供了宝贵的见解，对于做出明智的路线布局决策和有效管理路边地质风险至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Assessment and modeling of roadside geological risks in the Qinghai-Tibetan Plateau region

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Assessment and modeling of roadside geological risks in the Qinghai-Tibetan Plateau region

This study identified and assessed spatiotemporal distribution, and modeled influencing factors, of roadside geological risks for the Qinghai-Tibetan Plateau regions towards enhancing the safety of road operations. It utilized Latent Dirichlet Allocation model to identify risks, hotspot analysis and normalized spectral entropy to assess the spatiotemporal risk distribution, and Generalized Estimation Equations to analyze the relationship between geological risk susceptibility and the influencing factors. Finally, a case study was conducted to apply this methodology. The findings indicated that mountain geological hazards could affect areas up to 2,000 m from the roadway. Roadbed and tunnel sections, and lower-grade highways were more susceptible to mountain geological hazards, while higher-grade highways tended to have lower frozen soil thermal stability in their roadbed sections. This study provides valuable insights into the coupling effects between engineering and geological environments, crucial for informed route layout decisions and effective management of roadside geological risks.

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来源期刊

Transportation Research Part D-transport and Environment 工程技术-运输科技

CiteScore

14.40

自引率

9.20%

发文量

314

审稿时长

39 days

期刊介绍： Transportation Research Part D: Transport and Environment focuses on original research exploring the environmental impacts of transportation, policy responses to these impacts, and their implications for transportation system design, planning, and management. The journal comprehensively covers the interaction between transportation and the environment, ranging from local effects on specific geographical areas to global implications such as natural resource depletion and atmospheric pollution. We welcome research papers across all transportation modes, including maritime, air, and land transportation, assessing their environmental impacts broadly. Papers addressing both mobile aspects and transportation infrastructure are considered. The journal prioritizes empirical findings and policy responses of regulatory, planning, technical, or fiscal nature. Articles are policy-driven, accessible, and applicable to readers from diverse disciplines, emphasizing relevance and practicality. We encourage interdisciplinary submissions and welcome contributions from economically developing and advanced countries alike, reflecting our international orientation.