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为了解管涌现象形成和发展过程中土颗粒的移动规律,采用箱型渗透变形试验仪对不同级配的砂砾石进行了试验研究,并描述了渗透破坏过程。考虑固体介质的性质及特点,使用先进压力传感器记录试验中管涌过程,研究了宽级配砂砾石在渗流过程中的性质和特点。该试验为砂砾石的管涌破坏类型分类(发展型和非发展型)提供了合理的理论支持。
In order to understand the movement rule of soil particles during the formation and development of the piping phenomenon, the sand and gravel with different grading were tested by the box-type infiltration deformation tester and the infiltration and destruction process was described. Taking into account the nature and characteristics of the solid medium, an advanced pressure sensor is used to record the process of piping in the test, and the nature and characteristics of the graded gravel in the seepage process are studied. The test provides a reasonable theoretical support for the classification of the type of piping failure of sand and gravel (developmental and non-developmental).