基于熵值法和信息量模型的公路路域地质灾害敏感性研究  

Study on Sensitivity of Road Geological Hazards Based on Entropy Method and Information Model

作　　者：王林[1] 贾兴利[2] 周吴啸 WANG Lin;JIA Xingli;ZHOU Wuxiao(CCCC First Highway Consultants Co.,Ltd.,Xi’an,Shaanxi 710068,China;School of Highway,Chang an University,Xi’an,Shaanxi 710064,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,陕西西安710068 [2]长安大学公路学院,陕西西安710064

出　　处：《公路工程》2024年第2期152-157,共6页Highway Engineering

基　　金：国家重点研发计划项目(2020YFC1512003);陕西省重点研发项目(2021SF-514)。

摘　　要：为探讨浙江省高速公路路域范围内地质灾害分布规律,应用熵值理论和信息量法,基于地理信息系统技术平台,选取地面高程、降雨量、植被覆盖度等指标进行分析,并对高速路域进行敏感性评价。结果表明,浙江省高速公路路域灾害主要分布在西南部山区,并以滑坡为主;灾害面积比基本随地面高程、地表坡度、地表起伏度、降雨量、植被覆盖度的增加呈增长趋势,随与河流距离的增加呈减小趋势;对高速公路路域2 km内灾害敏感性进行分级后,极高敏感区、高敏感区、中敏感区、低敏感区、极低敏感区分别占比3.56%、31.09%、45.35%、19.72%、0.28%,路域高敏感区主要分布于浙江省西南部。In order to explore the distribution law of geological disasters in the expressway area of Zhejiang Province,based on the GIS technology platform,the entropy theory and information model were applied to analyze the ground elevation,rainfall,vegetation coverage and other indicators,and the sensitivity of expressway area was evaluated.The results show that the disasters of expressway in Zhejiang Province are mainly distributed in the southwest mountainous areas,and mainly landslides;the disaster area ratio increases with the increase of ground elevation,ground slope,ground undulation,rainfall and vegetation coverage,and decreases with the increase of distance from rivers;after classifying the disaster sensitivity within 2 km of the expressway,the extremely high sensitive area,the high sensitive area,the medium sensitive area,the low sensitive area and the extremely low sensitive area account for 3.56%,31.09%,45.35%,19.72%and 0.28%respectively.The high sensitive area is mainly distributed in the southwest of Zhejiang Province.

关 键 词：公路工程 敏感性 熵值法 信息量 地质灾害 路域 

分 类 号：P694[天文地球—地质学]