管涌发生后临界水力梯度研究
Research in critical hydraulic gradient after piping started
对管涌发生后的临界水力梯度进行分析，在管涌发展过程中，由于细小颗粒被渗透水流带出，土体的孔隙率和等效粒径都将发生变化。通过对土体中细小土颗粒的受力分析，及孔隙率变化，等效粒径的变化，推出管涌发生后各单元小颗粒发生运动的临界水力梯度。
n analysis was given about critical hydraulic gradient after piping started.The porosity and equivalent diameter of soil will be changed because of the flowing of small grains in the process of piping. We can get the critical hydraulic gradient with the analysis of the force on small grains and the change of porosity and equivalent diameter.
白兰兰、戴双庆、陈建生、陈亮
水利工程基础科学
管涌孔隙率临界水力梯度等效粒径
pipingporositycritical hydraulic gradientequivalent diameter
白兰兰,戴双庆,陈建生,陈亮.管涌发生后临界水力梯度研究[EB/OL].(2007-04-06)[2025-09-03].http://www.paper.edu.cn/releasepaper/content/200704-187.点此复制
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