摘要
本文通过对平凉市崆峒区城市地质灾害调查数据的综合分析,采用层次分析法构建崆峒区城区地质灾害易发性评价指标体系,根据城区地质灾害分布发育特征,建立崩塌、滑坡、泥石流地质灾害易发性层次结构模型,确定其影响因素权重,对崆峒区城市范围的地质灾害易发性进行了分区评价,其评价结果与实际条件比较吻合。其区划成果对崆峒区城市发展规划、减灾防灾以及灾害治理提供了可靠的依据,为开展黄土高原河谷阶地型城市地质灾害易发性评价工作具有一定的指导意义。
In this paper,the author analyzes the data of the geological hazard survey in the urban planning area of Kongtong district synthetically.Analytic hierarchy process is used to establish the index evaluation system of geological hazard susceptibility in the urban area of Kongtong district and the hierarchical models of collapse,landslide and mud debris based on the developmental features of geological hazards.Combined with the marks by experts,fuzzy mathematics and judgment matrix are utilized to infer the weights of influential factors.The results reflect the practical conditions generally,which can help guide the urban planning,hazard prevention and reduction and hazard control in Kongtong district.The research is also meaningful for the evaluation of the geological hazard susceptibility in the cities on the loess plateau in China.
作者
王玉琳
WANG Yu-lin(Gansu Institute of Engineering Geology, Lanzhou 730000, Chin)
出处
《甘肃地质》
2018年第1期79-84,共6页
Gansu Geology
基金
甘肃省平凉市崆峒区重要城镇地质灾害调查与风险区划(201562080202)
关键词
地质灾害
易发性
层次分析法
崆峒城区
geological hazard
susceptibility
analytic hierarchy process
Kongtong District
