离心模型技术在三峡工程高边坡研究中的应用

Application of the Centrifugal Modeling Technique to the Research of Rock Slopes in the Three Gorges Project

本文论述了利用离心模型研究岩石开挖边坡的相似理论、模型材料及试验技术,列举了对三峡船闸深挖高边坡的应力、变形和稳定性的研究成果以及边坡不连续面构造部位破坏机理的试验成果,展望了近期可能应用离心模型研究岩石力学和边坡工程的一些课题。

In the paper, some considerations with regard to the application of the centrifugal model test ( CMT ) to the structural analysis of deeply excavated rock slopes of the Three Gorges Project areremarked. These involve the theory of similarity, model materials and test techniques. Then the experimental results, including those of stress, deformation and stability of the excavated lock slope of the ship rock of Three Gorges project as well as the failure mechanism of the rock mass in the vicinity of the discontinuous surface obtained by means of CMT are presented. Some topics on rock mechanics and lock slope stability which may be effectively studied by CMT in the near future are put forward here too.