Technology Of Analysis To Dynamic Characteristics In The Dluices Dam Of Three Gorges Project

Flush Dam and Outlet Gate are key components of hydraulic hub. Their dynamic function attract widely attention of engineering field more and more as the increasing of large sized hydraulic hub projects in our country. Due to the construction of most high dam in seismic recurrent and high incense area ,those high dams and outlet gates which build in this area are easy to damage in the effect of accidental earthquake loading. In the other hand ,the complicativeness of the structure of outlet gate and working condition cause the existence of turbulent vibrate problems in the process of project operation. Therefore , the research on high dams and dynamic security of outlet gate has important theory significance and practical value.This article took research into the natural vibrate characteristics of flood dam section and seismic section to Sanxia Dam analysis the background of flood dam section and its deep hole traitor gate project . By the means of combination prototype trail model analysis technique with numerical calculation , the article discuss details into the natural vibrate characteristics of deep hole traitor gate fluctuating pressure and response of water driving gate vibrate.Observed and analyzed the natural vibrate characteristics of flood dam section and deep hole traitor gate by adoption of prototype dynamic trail, and research on the affect elements of natural vibrate characteristics.The article also research into the effect on natural vibrate characteristics of traitor gate from quality and quantity of water addition the boundary condition and the change of its open size and dynamic characteristics of flood dam section in different bases by adoption of dynamic finite element method and draw assistance from analyze software ANSYS , and analyzed other seismic dynamic react regularity in accordance with reactive spectrum theory.The numerical calculation and trail research showed : the flood dam and deep hole traitor fill the bill of dynamic tensely , therefore the dynamic character design is reasonable. The tainted gate is beneath the present water level and show no com-vibrate phenomenon . So the deep hole traitor floodgate that in the situation of below present water level shows softy which judge by the standard of harmful possibility of acceleration.