深厚覆盖层灌浆帷幕体与坝基变形协调数值计算分析研究

Coordination Numerical Calculation and Analysis Study of Deep Overburden Grouting Curtain and Dam Foundation Deformation

本文重点研究不同压缩特性、不同渗流特性覆盖层形成灌浆帷幕后的工作状态,通过数值分析覆盖层、帷幕、坝体结构的应力分布状况和变形特点,提炼帷幕体应力、变形与坝基覆盖层力学参数的变化关系,总结覆盖层参数对帷幕强度、帷幕体厚度、幕体深度的影响,以便指导帷幕工程设计。

This paper focuses on the working conditions of different compressive properties and different seepage characteristics to form the grouting curtain. By numerically analyzing the stress distribution and deformation characteristics of the overburden, curtain and dam structure, the stress and deformation of the curtain body and the mechanics of the dam foundation are refined. The relationship between the parameters and the influence of the overlay parameters on the curtain strength, the thickness of the curtain, and the depth of the curtain to guide the curtain engineering design.