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渗流控制是大型水电工程建设面临的关键技术问题之一,渗流分析是实现渗控优化设计的重要途径。解释了渗流控制的过程、状态、参数和边界等4类物理控制机制,论证了基于Signorini型变分不等式的渗流分析方法的有效性和优越性,并阐述了排水孔幕数值模拟的SVA方法、初始渗流场的反馈分析方法以及岩土体渗流的强耦合机理和模拟方法。研究成果对大型水电工程渗流分析及渗控优化设计具有指导意义。
Seepage control is one of the key technical problems faced by large hydropower projects. Percolation analysis is an important way to achieve optimal design of seepage control. Four kinds of physical control mechanisms such as process, state, parameters and boundary of seepage control are explained. The validity and superiority of seepage analysis method based on Signorini variational inequality are demonstrated. The SVA method for numerical simulation of drainage hole curtain is expounded. The feedback analysis of initial seepage field and the strong coupling mechanism and simulation method of seepage flow in rock and soil. The research results are of guiding significance for the seepage analysis and seepage control optimization design of large hydropower projects.