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A Targeted Grouting and Water Blocking Method Based on Hydrological Tracer Testing and Its Engineering Applications

1
Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China
2
School of Civil Engineering, Shandong University, Jinan 250061, China
3
School of Qilu Transportation, Shandong University, Jinan 250061, China
4
China Resources Cement Company Limited, Nanning 530000, China
*
Authors to whom correspondence should be addressed.
Water 2019, 11(5), 1000; https://doi.org/10.3390/w11051000
Received: 26 March 2019 / Revised: 29 April 2019 / Accepted: 9 May 2019 / Published: 13 May 2019
(This article belongs to the Section Hydrology)
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Abstract

Hydrological tracer testing is an effective way to determine the law of recharge and the transport of groundwater. In karst collapse mine water treatment, the hydrological tracing test can determine information such as the runoff velocity and the pattern of underground runoff, so that targeted grouting becomes possible. In this paper, NaCl was used as a tracer, and the content of the tracer was determined by the chloride ion selective electrode method. The NaCl concentration–time curve was plotted, and we obtained a tracer test method that can determine the runoff of the karst quantificationally. The method can quantificationally obtain the groundwater transport velocity, runoff pattern, and connectivity. This combination of grouting rate, grouting pressure, and setting time realized the localized targeted grouting and achieved a significant water damage control effect. View Full-Text
Keywords: hydrological tracer test; chloride ion selective electrode; type of runoff: runoff velocity; grouting parameter hydrological tracer test; chloride ion selective electrode; type of runoff: runoff velocity; grouting parameter
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zhang, Y.; Wang, S.; Wang, J.; Zhang, B.; Li, H.; Li, L.; Lin, C.; Xu, Z.; Zhao, G.; Han, J. A Targeted Grouting and Water Blocking Method Based on Hydrological Tracer Testing and Its Engineering Applications. Water 2019, 11, 1000.

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