摘要
喀喇昆仑公路沿线地质灾害频发,自建成通车以来,每年都带来大量的经济损失甚至人员伤亡。本文通过资料收集及现场调查,总结了喀喇昆仑公路沿线地质灾害发育规律,并选取地形、地震、地层岩性、断层、降水、温差等作为评价因素并分析各因素属性对地质灾害的影响规律;运用多因素相互作用关系矩阵和AHP相结合的方法确定各因素影响权重,弥补了单一评价手段的不足;运用GIS空间分析原理对地质灾害易发性指数(GHSI)进行计算并对地质灾害易发性进行分区。分析认为:强烈的内外动力地质作用导致了研究区复杂的地形、多变的地质和恶劣的气象环境,频繁的人类工程活动一定程度上改变了原有生态及地质平衡,这是导致中巴公路沿线多类型地质灾害频发的主要原因。
Geohazards occur frequently along the Karakoram Highway.Since the opening to traffic,it has brought a lot of economic losses and even casualties every year.The development law of geohazards along the Karakoram Highwayis summarized on the basis of data collection and field investigation,andterrain,earthquake,stratum lithology,fault,precipitation and temperature difference are selected as evaluation factors,and the influence of each factor attribute on geohazard is analyzed;secondly,the influence weight of each factor is determined by using the method of combination of multi factor interaction matrix and AHP,the evaluating result is more objective and reasonable.Then,the Geological Hazard Susceptibility Index(GHSI)is calculated and the geohazard susceptibility is divided into different regions.Through field investigation and susceptibility evaluation,it is considered that the strong internal and external dynamic geological process leads to the complex terrain,changeable geology and bad meteorological environment in the study area,and frequent human engineering activities change the original ecological and geological balance to a certain extent,which is the main reason for the frequent occurrence of various types of geohazards along the Karakoram Highway.
作者
李坤
尚彦军
魏思宇
杨朋
张峰玮
曹小红
Li Kun;Shang Yanjun;Wei Siyu;Yang Peng;Zhang Fengwei;Cao Xiaohong(General Institute of Water Resources and Hydropower Planning and Design,Ministry of Water Resources Beijing,100120,China;Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,100029,China;Oil and gas resources survey center of China Geological Survey,Beijing,100083,China;Tianjin Geological Survey Center of China Geological Survey,Tianjin,300170,China;Key Laboratory of Geological Hazard Prevention of Xinjiang(Xinjiang Institute of Engineering),Urumqi,Xinjiang,830023,China)
出处
《新疆地质》
CAS
CSCD
北大核心
2020年第4期532-538,共7页
Xinjiang Geology
