Results 71 to 80 of about 7,725 (269)

Influence of Mine Dewatering‐Effluent Cycling on Arsenic Loading in a Gold Mine Tailings Containment Area

open access: yesWater Resources Research, Volume 61, Issue 10, October 2025.
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

open access: yesRemote Sensing, 2023
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

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 23, Page 3707-3725, 19 September 2025.
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

open access: yesRiver, Volume 4, Issue 3, Page 287-296, August 2025.
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

open access: yesYantu gongcheng xuebao, 2017
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

Long-term deformation analysis of Shuibuya concrete face rockfill dam based on response surface method and improved genetic algorithm

open access: yesWater Science and Engineering, 2019
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

Particle size distribution (PSD) estimation using unmanned aerial vehicle (UAV) photogrammetry for rockfill shear strength characterization

open access: yesActa Geotechnica
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

Comprehensive review of innovative construction technology of high‐core rockfill dam: Nuozhadu project

open access: yesRiver, Volume 4, Issue 2, Page 135-148, May 2025.
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

open access: yes, 2020
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

Effect of flexible membrane in triaxial test on the mechanical behaviour of rockfill material using Discrete Element Method

open access: yesGranular Matter
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

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