堤基管涌破坏特性研究进展

堤基管涌是汛期堤防工程中常见的一种渗透变形现象,严重影响堤防工程和堤防保护区内生命财产安全。堤基管涌因其隐蔽性、危害性、复杂性和难以预测性,其发展机理和破坏特性的研究一直是国内外研究的热点和难点。通过对国内外相关研究进展进行总结,从经验方法、数学模型、物理模型试验和数值模拟这四类主要研究方法分别评述了现有的研究成果。在此基础上,根据管涌研究水平的现状和管涌防治工作的需求,提出未来研究的几个方向。

Overview on the research of the mechanism of backward erosion piping in dike foundations

Backward erosion piping is a common phenomenon due to seepage on the dike foundations during flood seasons. It threats the safety of dikes themselves and lives and property of the landside. Becauseit hides in the dike foundation,could cause dike failure and the progression is difficult to predict,themechanism is still not easy to explore clearly. This paper overviewed and summarized the research on thedike foundations from four kinds of research methods：empirical method,mathematical model,physical mod-el tests and numerical simulation. The prospective of research on backward erosion piping mechanism wasproposed according to the present research achievement and the requirement for the countermeasures ofbackward erosion piping.