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Processes 2019, 7(2), 71; https://doi.org/10.3390/pr7020071

Seepage Characteristics and Its Control Mechanism of Rock Mass in High-Steep Slopes

1
,
2
and
1,*
1
School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
2
College of Food Science and Engineering, Northwest Agriculture and Forestry University, Yangling 712100, China
*
Author to whom correspondence should be addressed.
Received: 30 December 2018 / Revised: 24 January 2019 / Accepted: 24 January 2019 / Published: 1 February 2019
(This article belongs to the Special Issue Fluid Flow in Fractured Porous Media)
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Abstract

In Southwest China large-scale hydropower projects, the hydraulic conductivity and fracture aperture within the rock mass of a reservoir bank slope has dramatically undergone a time series of evolution during dam abutment excavation, reservoir impounding and fluctuation operation, and discharge atomization. Accordingly, seepage control measures by hydro-structures such as drainage or water insulation curtains should be guided by scientific foundation with a dynamic process covering life-cycle performance. In this paper, the up-to-date status of studying the evolution mechanism of seepage characteristics relating to fractured rock hydraulics from experimental samples to the engineering scale of the rock mass is reviewed for the first time. Then, the experimental findings and improved practice method on nonlinear seepage flow under intensive pressure drives are introduced. Finally, the scientific progress made in fractured rock seepage control theory and optimization of the design technology of high-steep slope engineering is outlined. The undertaken studies summarized herewith are expected to contribute to laying a foundation to guide the further development of effective geophysical means and integrated monitoring systems in hydropower station construction fields. View Full-Text
Keywords: hydro-power; high-steep slope; fractured rock; permeability; seepage control hydro-power; high-steep slope; fractured rock; permeability; seepage control
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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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Li, H.; Tian, H.; Ma, K. Seepage Characteristics and Its Control Mechanism of Rock Mass in High-Steep Slopes. Processes 2019, 7, 71.

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