青干河软硬相间顺向岸坡演化过程研究  

Study of Evolutionary Process of Consequent Bank Slopes with Hard and Soft Lithologies at Qinggan River

作　　者：孟立朋[1,2] 彭轩明[3] 吴吉民[1] 黄波林[1] 陈立德[1] 

机构地区：[1]宜昌地质矿产研究所,湖北宜昌443003 [2]中国地质科学院,北京100037 [3]青岛海洋地质研究所,青岛266071

出　　处：《三峡大学学报（自然科学版）》2010年第3期52-56,共5页Journal of China Three Gorges University：Natural Sciences

基　　金：中国地质调查局灾害预警项目(1212010640601)

摘　　要：青干河岸坡类型多为顺向、斜顺向岩质岸坡,岸坡演化方式主要以滑坡形式进行.岸坡演化过程主要由岸坡结构及软硬相间岩组特征决定.本文通过对岸坡现状及特征的调查研究,认为岸坡演化过程可分为4个阶段:稳定岩质斜坡阶段—不稳定岩质斜坡阶段—斜坡变形失稳阶段—老滑坡残体消亡阶段;岸坡现状为其演化过程中某一阶段的具体特征体现,岸坡演化过程多按4个阶段周期性进行.利用该规律对青干河岸坡进行了演化阶段分区,对指导该区域地质灾害防治具有重要意义.Two bank slope styles,consequent bank slope and inclined consequent bank slope,are mainly existed in the Qinggan River.The landslide is the main evolutionary style of the bank slope,which is determined by its structure and the characteristics for its hard and soft lithologic combination.According to the investigation and research on the actuality and characteristics of the bank slopes,the evolutionary process of the consequent bank slope can be divided into four phases： stable rock slope,unstable rock slope,distorting rock slope,landslide dying-away;and which are embodied by the actuality of the bank slope and staggered periodically.It is more significant to guide its prevention of geo-hazards in the Qinggan River based on the rule and zoning the evolutionary phases.

关 键 词：青干河 顺向岸坡 演化阶段 周期性 

分 类 号：TV698.232[水利工程—水利水电工程]