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Article

Understanding the Influence of Rock Content on Streaming Potential Phenomenon of Soil–Rock Mixture: An Experimental Study

by 1, 1 and 2,*
1
Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education, Chongqing Jiaotong University, Chongqing 400074, China
2
Engineering Research Center of Diagnosis Technology and Instruments of Hydro-Construction, Chongqing Jiaotong University, Chongqing 400074, China
*
Author to whom correspondence should be addressed.
Academic Editors: Marian Drusa, Andrea Segalini and Jaroslaw Rybak
Sensors 2022, 22(2), 585; https://doi.org/10.3390/s22020585
Received: 14 December 2021 / Revised: 7 January 2022 / Accepted: 10 January 2022 / Published: 13 January 2022
(This article belongs to the Special Issue Sensors and Measurements in Geotechnical Engineering)
To applicate streaming potential phenomenon to study the seepage feature in the soil–rock mixture (SRM), research on the variation in the streaming potential phenomenon of SRM is the precondition. This paper deals, in assistance with the streaming potential test apparatus, with the streaming potential effect response of SRM subjected to different rock contents. The test results show that when the rock content increases from 10% to 30%, the streaming potential coupling coefficient increases with the increases in rock content at 85% compactness and 0.01 mol L−1 salinity. When the rock content is more than 30%, the streaming potential coupling coefficient decreases with the increases in rock content. As the rock content increases, the permeability coefficient has a negative correlation with the streaming potential coupling coefficient. The streaming potential increases first and then goes down with the increases in rock content, and the streaming potential decreases significantly when the rock content exceeds 50%. The findings indicate that the rock content is the key structural factor that restricts the streaming potential phenomenon of the SRM. View Full-Text
Keywords: soil–rock mixture; streaming potential coupling coefficient; streaming potential; rock content soil–rock mixture; streaming potential coupling coefficient; streaming potential; rock content
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MDPI and ACS Style

Zhang, X.; Zhao, M.; Wang, K. Understanding the Influence of Rock Content on Streaming Potential Phenomenon of Soil–Rock Mixture: An Experimental Study. Sensors 2022, 22, 585. https://doi.org/10.3390/s22020585

AMA Style

Zhang X, Zhao M, Wang K. Understanding the Influence of Rock Content on Streaming Potential Phenomenon of Soil–Rock Mixture: An Experimental Study. Sensors. 2022; 22(2):585. https://doi.org/10.3390/s22020585

Chicago/Turabian Style

Zhang, Xin, Mingjie Zhao, and Kui Wang. 2022. "Understanding the Influence of Rock Content on Streaming Potential Phenomenon of Soil–Rock Mixture: An Experimental Study" Sensors 22, no. 2: 585. https://doi.org/10.3390/s22020585

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