Research the causes and propose measures to overcome some problems that arise when Day dam gate operation

Abstract

     Work of the dam Day with flood prevention task for Hanoi has worked for 70 years. Presently the project has already degrading should arise many phenomena need to be researched. In the work -The gate is an important part of the work - the operation has many pullulate exist appear as noise, welding crack..., the gate is inclined when open or close. The article will analyze the causes from the survey results and the theoretical calculations on the model. That is the reason to offer solutions to repair