三峡库区云阳新县城库岸再造预测

Forecast for the bank reformation at new Yunyang county seat in TGP reservoir area

在三峡库区、丹江口库区等大中型水利枢纽工程中,库岸再造是常见工程问题。水库蓄水后,地质环境的改变必将带来新的环境地质问题。库岸再造是对云阳新县城影响较大的环境地质问题。库岸再造预测是根据库岸工程地质条件,结合现今岸坡的稳定条件,对蓄水后库岸再造类型及再造程度进行预测,为库岸防护提供地质依据。根据三峡库区重庆市云阳新县城库岸防护工程成功实施的事例,对城市库岸再造预测思路进行粗浅分析和经验总结,并提出了防护措施及要点。

For the reservoir area of large-type hydroproject,such as TGP,Danjiangkou hydroproject,reservoir bank reformation is common engineering problem.The reservoir impoundment will change the geologic environment and bring about environment problem.The reservoir bank reformation is an environment geological problem having comparably large influence on new Yunyang county seat.Reservoir bank reformation forecast is to forecast the reformation type and reformation degree after reservoir impoundment according to reservoir bank geologic condition and in the consideration of the bank stable condition at present and provide geologic basis for reservoir control and protection.Taking the successful case of reservoir bank protection of new Yunyang county seat under Chongqing city in TGP reservoir area as example,this paper analyzes forecast thought train and summarizes experience,and put forward protection measures and key points.