在渗流作用下．土体细颗粒沿骨架颗粒形成的孔隙，水在土孔隙中的流速增大引起土的细颗粒被冲刷带走的现象。也称翻沙鼓水。涌水口径小者几厘米．大者几米，孔隙周围多形成隆起的沙环。
管涌对水库大坝的危害及处理_建筑设计论文 关键词：水库大坝，管涌，水利工作 [gap=829]Keywords: reservoir dam, piping, water conservancy work
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The mechanism and current status about piping and the numerical method of DEM are presented. At first, the forces between particles are considered, and the deformation and displacement of particles caused by the forces are calculated.
介绍管涌的机理及研究现状以及离散元的数值方法。
参考来源 - 运用离散单元法研究土体管涌机理初探·2,447,543篇论文数据，部分数据来源于NoteExpress
堤坝的渗流会导致渗漏、管涌、滑坡甚至危及整个大坝的安全。
Seepage might cause leakage, piping effect, landslide and even endanger the whole dam.
由于大坝出现了严重渗漏和管涌，1999年永记水库被鉴定为病险水库。
Yongji reservoir was appraised as the defective reservoir in 1999 due to the serious leakage and piping.
由于洪水位还有不断上升的发展趋势，防治管涌还应注意控制洪水位上升的问题。
But when flood level is rising gradually, controlling the flood level's rising is also very important to prevent dike piping.
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