Results 71 to 80 of about 7,725 (269)
Abstract The Giant Mine (1948–1999) generated 16 Mt of Au‐bearing mill tailings (2800 mg kg−1) originating from a mixture of flotation tailings (84.8 wt%), calcine residues (14.4 wt.%), and arsenic trioxide roaster waste (0.8 wt.%). A water treatment system for high As mine dewatering effluent has operated since the end of mine operations, with the ...
David M. Hilger +4 more
wiley +1 more source
Breach Progression Observation in Rockfill Dam Models Using Photogrammetry
Dam failures are examples of man-made disasters that have stimulated investigation into the processes related to the failure of different dam types. Embankment dam breaching during an overtopping event is one of the major modes of failure for this dam ...
G. H. Kiplesund +2 more
semanticscholar +1 more source
A characterization model for time‐dependent displacement of concrete dams
Abstract Time‐dependent displacement caused by creep and shrinkage can significantly affect the structural performance and even shorten the service life of a concrete structure, which is designed for decades or longer, resulting in a safety risk. Unlike in long‐spanning structures such as bridges, where the time‐dependent displacement is readily ...
Kefu Yao +4 more
wiley +1 more source
Air entrainment and splash characteristics in jet flows: Effect of downstream water levels
Abstract This study investigates the air–water interaction dynamics in jet streams, with particular emphasis on the transition from the cavity to the far‐field regions. A dual‐tip conductivity phase‐detection probe was employed to analyze four distinct downstream water levels.
Bai Ruidi, Chen Yang, Xu Weilin
wiley +1 more source
Particle breakage of rockfill materials under cyclic loadings
Through lab dynamic tri-axial tests on rockfill materials, the characteristics of particle breakage and its influence factors under cyclic loadings are studied.
HAN Hua-qiang 1,2, CHEN Sheng-shui 1,2, FU Hua 1,2, ZHENG Cheng-feng 1,2
doaj +1 more source
Due to the size effects of rockfill materials, the settlement difference between numerical simulation and in situ monitoring of rockfill dams is a topic of general concern.
Fu-hai Yao +6 more
doaj +1 more source
The strength of rockfills and waste materials is significantly influenced by their particle size distribution (PSD). For large waste rockfills, PSD is fundamental to determine the shear behavior.
Marco Arrieta, Zong-Xian Zhang
semanticscholar +1 more source
Abstract Underpinned by the ultrahigh‐core rockfill dam at the Nuozhadu Hydropower Station, comprehensive studies and engineering practices have been conducted to address several critical challenges: coordination of seepage deformation in dam materials, prevention and control of high‐water‐pressure seepage failure, static and dynamic deformation ...
Biao Liu +6 more
wiley +1 more source
Stability of High Rockfill Embankment Based on Orthogonal Test and Numerical Simulation
The parameters of rockfill materials are important factors that influence the stability of high rockfill embankment. However, the influencing laws of parameter changes on the deformation of high rockfill embankments still remain unknown.
Shunfei Li +9 more
core +1 more source
The investigation of rockfill materials poses challenges due to their large particle size, associated high cost, and long laboratory testing duration.
Reza Asadi +3 more
semanticscholar +1 more source

