云南省鲁甸县地质灾害特征与成因研究

鲁甸县地质灾害类型众多,主要有滑坡、泥石流、崩塌、地裂缝等.鲁甸县境内现有地质灾害86处,其中滑坡60处、泥石流13处、崩塌10处、地裂缝3处.地质灾害规模以小型为主,占62.79%,其次为中型和大型,有少量巨型地质灾害.在资料收集与野外调查的基础上,从地形地貌条件、地层岩性条件、地质构造条件、降雨、人类工程活动、地震活动等方面探讨了地质灾害的形成因素,找出成灾规律,并提出了防灾、减灾对策.

STUDY ON CHARACTERISTICS AND FORMATION FACTOR OF GEOLOGICAL HAZARDS IN LUDIAN COUNTY OF YUNNAN PROVINCE

Landslides,debris flows and rockfalls are the main types of geological hazards in Ludian county. 60 Landslides, 13 debris flows,10 rockfals and 3 earth cracks have been found in Ludian county. 62. 79% geological hazards are mini-type dimensions,next are medium-sized and large-scale, and a few gigantic geological hazards. Through collecting data and surveying in the field, the authors discuss the formation factor of geological hazards under the conditions of terrain and physiognomy, stra turn and lithology, geological structure, rainfall, human activity, and earthquake. The pattern of hazards formation is found, and bring forward countermeasure for prevention and reduction of geological hazards.