黄河下游堤防地质险段研究

由地质作用影响形成的易出险堤段称为地质险段 ,主要包括活断层作用影响形成的堤基易渗漏段、强地震高发区段和地基稳定性差段等。构造节点是识别地质险段的重要的河流地貌标志之一。根据成因 ,本文将黄河下游的地质险段分为三类 ,即新构造险段、沉降险段、断裂复活险段。针对黄河下游堤防地质特征 ,圈定出东坝头、大刘屯—董口黄河南岸和路那里—十里堡黄河南岸地质险段 ,提出了治理的有关措施

STUDY ON GEOLOGICALLY DANGEROUS SECTIONS OF ENBANKMENT OF LOWER YELLOW RIVER

The geologically dangerous sections formed by geologic agent can be distinguished into three kinds, such as neotectonically dangerous section, subsidence - dangerous section, and reactivation-dangerous section. Percolation sections of embankment foundation, earthquake damage sections, and weak stability sections of embankment foundation are of a part of geologically dangerous sections. According to the geological features of the lower Yellow River, three Geologically dangerous sections can be identified, such as Dongbatou, Daliutun-Dongkou, and Lunali-Shilipu sections. Some countermeasures are suggested in this paper.