| 基于地理空间分析和AHP的线路通道滑坡风险性评价 |
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| 引用本文： | 王景致,袁嘉彬,尹海兵,姜文东,周啸宇.基于地理空间分析和AHP的线路通道滑坡风险性评价[J].测绘与空间地理信息,2021,44(4):29-34. |
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| 作者姓名： | 王景致 袁嘉彬 尹海兵 姜文东 周啸宇 |
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| 作者单位： | 国网通用航空有限公司,北京102209;国网浙江省电力有限公司,浙江 杭州310007 |
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| 摘 要： | 输电线路常需要跨越地质灾害易发区域,为了保证电力的正常、安全输送,对输电线路通道所经区域进行滑坡地质灾害的空间分布及潜在风险评价具有重要意义。本文结合GIS和AHP方法进行了某输电线通道滑坡灾害危险性评价,选取地形地貌、气候条件、水文条件、人为活动条件、植被条件、地质岩组条件等影响因子,建立评价指标体系,利用层次分析法(AHP)确定各因子权重,基于GIS地理空间分析评价了输电线路通道地质灾害危险性,划分了5类区域:极高危险区、高危险区、中危险区、低危险区、较低危险区。危险性评价结果可为输电线路电力设施通道滑坡灾害防治、安全设计和施工提供科学依据。
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| 关 键 词： | 地质灾害 GIS 滑坡 层次分析法 危险性评价 |
Risk Assessment of Transmission Line Corridor Landslide Based on Geospatial Analysis and AHP |
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| WANG Jingzhi,YUAN Jiabin,YIN Haibing,JIANG Wendong,ZHOU Xiaoyu.Risk Assessment of Transmission Line Corridor Landslide Based on Geospatial Analysis and AHP[J].Geomatics & Spatial Information Technology,2021,44(4):29-34. |
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| Authors: | WANG Jingzhi YUAN Jiabin YIN Haibing JIANG Wendong ZHOU Xiaoyu |
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| Institution: | (State Grid General Aviation Co.,Ltd.,Beijing 102209,China;State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310007,China) |
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| Abstract: | In order to ensure the normal and safe transmission of power,it is of great significance to evaluate the spatial distribution and potential risk of landslide geological hazards in the area where the transmission line passes.In this paper,RS,GIS and AHP are used to evaluate the risk of landslide disaster in a transmission line channel.The influencing factors such as topography,climate,hydrology,human activities,vegetation and geological rock group are selected to establish the evaluation index system.AHP is used to determine the weight of each factor.The transmission line channel is evaluated based on GIS geospatial analysis.The risk of geological disaster is divided into five grades:extremely high-risk area,high risk area,medium risk area,low risk area and very low risk area.The results of risk assessment can provide scientific basis for the safety design and construction of landslide prevention and control of power transmission lines. |
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| Keywords: | geohazards GIS landslide analytic hierarchy process risk assessment |
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