闸墙变位对三峡人字门安全运行影响研究

Effect of Lock-wall Deformation on the Performance of the Miter Gates of the Three Gorges Project

基于接触面单元 ,导出一组能反映两扇闸门斜接柱接触变化的本构方程式 .详细研究了闸室水位升降过程中两扇闸门接触区域的变化情况以及对门体应力的影响 ,并提出了通过调整背拉杆预应力克服闸墙变位引起的不良影响的一种简单有效的方法 .

Based on the contact Element Method,nonlinear equations for the analysis of the miter gates of the Three Gorges Project are established.The variations of the contact area and stress and displacement of the miter gates during water level rise and fall are studied.A simple and valid method to overcome the effect of the displacement of the lock wall through adjusting the prestress of the back drag rod is presented.