青藏高原1:25万重大线路工程扰动灾害数据（1960-2019）

对于线路工程（国道、高速、铁路、电网工程）灾害解译范围，以工程两侧第一分水岭为界。线路工程扰动灾害划分为两类：①由工程建设诱发的滑坡、崩塌、泥石流灾害；②可能影响工程的自然灾害，规定上述解译范围内的所有自然灾害均属于第②类工程扰动灾害。其数据包含滑坡的位置、长、宽、高差、分布高程、成因类型、诱发因素、发生时间、岩性等要素及灾害相关工程及工程建设年份等。依据Google earth影像及1:50万地质图解译全区工程扰动灾害，共解译了4863个灾害点；主要利用Google earth进行扰动灾害解译，同时结合野外考察验证解译结果，利用ArcGIS生成灾害分布图件；数据来源于Google earth高分辨率影像，原始数据精度高，在灾害文件生成过程中严格按照解译规范，并有专人审查，数据质量可靠；依据所收集数据可进行研究区灾害风险分析，为已建工程的顺利运行和未建/在建线路工程的建设提供理论指导。

The disaster interpretation scope of linear engineering (including national highways, expressways, railways, and power grid projects) is bounded by the first watershed on both sides of the engineering corridor. The disturbed disasters of linear engineering are divided into two categories: ① Disasters such as "landslides, collapses, and debris flows" induced by engineering construction; ② Natural disasters that may affect the engineering. It is stipulated that all natural disasters within the above-mentioned interpretation scope fall into the second category of engineering disturbed disasters.

The data includes attributes of landslides including location, length, width, height difference, distribution elevation, genetic type, inducing factors, occurrence time, and lithology, as well as information on the engineering related to the disasters and the year of engineering construction.

All engineering disturbed disasters in the study area were interpreted using Google Earth imagery and the 1:500,000 geological map, with a total of 4,863 disaster points identified. Google Earth was primarily utilized for the interpretation of disturbed disasters, while field investigations were conducted to validate the interpretation results. ArcGIS was employed to generate disaster distribution maps.

The data is sourced from high-resolution Google Earth imagery, with high original data accuracy. During the production of disaster datasets, the interpretation specifications were strictly followed, and all data was reviewed by dedicated personnel, ensuring reliable data quality.

Based on the collected dataset, disaster risk analysis for the study area can be performed, providing theoretical guidance for the smooth operation of completed linear engineering projects and the construction of unbuilt or under-construction linear projects.

搜集汇总

背景与挑战

背景概述

该数据集包含了1960-2019年间青藏高原重大线路工程（国道、高速、铁路、电网工程）扰动灾害的详细数据，共解译了4863个灾害点。数据来源于Google earth高分辨率影像和1:50万地质图，经过严格解译规范和野外考察验证，质量可靠，适用于灾害风险分析及工程建设指导。