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Open AccessArticle

Simple Fully Automatic Testing Method of Seepage Indices for Low-Permeability Materials

by 1,2, 1,3,* and 4
1
College of Architectural Engineering, Xinjiang University, Urumqi 830047, China
2
Quality Testing Center for Capital Construction, Yellow River Conservancy Commission, Zhengzhou 450003, China
3
Xinjiang Civil Engineering Technology Research Center, Xinjiang University, Urumqi 830047, China
4
Technique Department, Wuhan Econt Technology Co., Ltd., Wuhan 430080, China
*
Author to whom correspondence should be addressed.
Academic Editor: Fernando António Leal Pacheco
Water 2021, 13(4), 477; https://doi.org/10.3390/w13040477
Received: 9 December 2020 / Revised: 22 January 2021 / Accepted: 9 February 2021 / Published: 12 February 2021
(This article belongs to the Section Hydrology and Hydrogeology)
In anti-seepage engineering, quality control and engineering applications are based on the accurate measurement of seepage indices for low-permeability materials. The test used to determine the seepage indices for low-permeability materials adopts an external source to produce water pressure, and the seepage flux produced during the process requires manual measurement; thus, the apparatus used is complex and difficult to operate, thereby lowering the testing efficiency and restricting its application. In this study, a built-in servo motor was used to produce high water pressure with a pressure transmitter, and it controlled and measured the seepage pressure. According to the rotation number of the electric cylinder motor, the volume change of water in the hydraulic cylinder was calculated and, thus, the seepage flux was deduced. A simple fully automatic seepage apparatus for low-permeability materials was designed with a human–computer interface. The results showed the successful calculation of seepage flux as a function of the rotation number of the servo motor through automatic measurement. Furthermore, the replacement of the external high-pressure source with the built-in servo motor enhanced the safety performance, and the human–computer interface enabled an interactive operation and simplified the measurement structure. This simple testing method can provide technical support for quality inspection and construction control of anti-seepage engineering. View Full-Text
Keywords: seepage coefficient; low-permeability; seepage pressure; flux; automatic; servo; human–computer interaction seepage coefficient; low-permeability; seepage pressure; flux; automatic; servo; human–computer interaction
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MDPI and ACS Style

Shen, X.; Li, L.; Wang, Y. Simple Fully Automatic Testing Method of Seepage Indices for Low-Permeability Materials. Water 2021, 13, 477. https://doi.org/10.3390/w13040477

AMA Style

Shen X, Li L, Wang Y. Simple Fully Automatic Testing Method of Seepage Indices for Low-Permeability Materials. Water. 2021; 13(4):477. https://doi.org/10.3390/w13040477

Chicago/Turabian Style

Shen, Xizhong; Li, Ling; Wang, Yingjun. 2021. "Simple Fully Automatic Testing Method of Seepage Indices for Low-Permeability Materials" Water 13, no. 4: 477. https://doi.org/10.3390/w13040477

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