Next Article in Journal
Building Energy Consumption Prediction: An Extreme Deep Learning Approach
Previous Article in Journal
Modeling of HVDC System to Improve Estimation of Transient DC Current and Voltages for AC Line-to-Ground Fault—An Actual Case Study in Korea
Open AccessArticle

Study of Anti-Sliding Stability of a Dam Foundation Based on the Fracture Flow Method with 3D Discrete Element Code

1
Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China
2
Institute of Geotechnical Research, Hohai University, Nanjing 210098, China
3
HydroChina-ITASCA R&D Center, ITASCA Consulting Group, Hangzhou 311122, China
*
Author to whom correspondence should be addressed.
Energies 2017, 10(10), 1544; https://doi.org/10.3390/en10101544
Received: 25 July 2017 / Revised: 5 September 2017 / Accepted: 2 October 2017 / Published: 6 October 2017
Fractured seepage is an important factor affecting the interface stability of rock mass. It is closely related to fracture properties and hydraulic conditions. In this study, the law of seepage in a single fracture surface based on modified cubic law is described, and the three-dimensional discrete element method is used to simulate the dam foundation structure of the Capulin San Pablo (Costa Rica) hydropower station. The effect of construction joints and developed structure on dam stability is studied, and its permeability law and sliding stability are also evaluated. It is found that the hydraulic-mechanical coupling with strength reduction method in DEM is more appropriate to use to study the seepage-related problems of fractured rock mass, which considers practical conditions, such as the roughness of and the width of fracture. The strength reduction method provides a more accurate safety factor of dam when considering the deformation coordination with bedrocks. It is an important method with which to study the stability of seepage conditions in complex structures. The discrete method also provided an effective and reasonable way of determining seepage control measures. View Full-Text
Keywords: seepage flow; anti-sliding stability; discrete element method; dam foundation seepage flow; anti-sliding stability; discrete element method; dam foundation
Show Figures

Figure 1

MDPI and ACS Style

Shi, C.; Yang, W.; Chu, W.; Shen, J.; Kong, Y. Study of Anti-Sliding Stability of a Dam Foundation Based on the Fracture Flow Method with 3D Discrete Element Code. Energies 2017, 10, 1544.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop