E3S Web Conf.
Volume 198, 20202020 10th Chinese Geosynthetics Conference & International Symposium on Civil Engineering and Geosynthetics (ISCEG 2020)
|Number of page(s)||4|
|Section||Geosynthetics Applied Design Theory and Method|
|Published online||26 October 2020|
Experimental investigation on the filtration of a novel composite plastic blind drainage on expansive soil slope
1 College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, China
2 Hydraulic Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210029, China
3 Anhui R & D Hi-Tech Engineering Co., Ltd., Nanjing 210024, China
4 Materials & Structural Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210029, China
* Corresponding author: email@example.com
Extensive clogging occurs to the blind drainage due to the high clay content of the expansive soil slope and the distinctly different grain composition between the matrix and the sand cushion. Thus, a novel composite plastic blind drainage was designed and its seepage performance was explored by laboratory filter test. Compared to the conventional system, adopting the new plastic blind drainage significantly reduced the demand of sand and gravel for field application. The results from the laboratory tests revealed that, the seepage of the drainage system with this novel composite plastic blind drainage functioned steadily in the long-term.
© The Authors, published by EDP Sciences 2020
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