Results 61 to 70 of about 5,478,875 (172)
The Cemented Material Dam: A New, Environmentally Friendly Type of Dam
The first author proposed the concept of the cemented material dam (CMD) in 2009. This concept was aimed at building an environmentally friendly dam in a safer and more economical way for both the dam and the area downstream.
Jinsheng Jia +3 more
doaj +1 more source
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
Rockfill dams have better stability than homogeneous soil dams. It allows to design the dam more slim with a higher slope. The disadvantage of rockfill dam is in the core zone as an impermeable zone.
Siswanto Siswanto +2 more
doaj +1 more source
In order to solve the problem of large amount of calculation in calibration of microscopic parameters for rockfill materials in discrete element model, taking the laboratory tri-axial tests on the rockfill materials as the object, the methods of ...
WANG Jin-wei 1, 2, CHI Shi-chun 1, 2 , SHAO Xiao-quan 1, 2, ZHAO Fei-xiang 1, 2
doaj +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
Random Forests and Cubist Algorithms for Predicting Shear Strengths of Rockfill Materials
The shear strength of rockfill materials (RFM) is an important engineering parameter in the design and audit of geotechnical structures. In this paper, the predictive reliability and feasibility of random forests and Cubist models were analyzed by ...
Jian Zhou +5 more
doaj +1 more source
Stress-deformation behavior of a blast-fill dam
The stress-deformation behaviour of a blast-fill dam at different stages was examined based on in-situ monitoring data and finite element analysis (FEA).
HUANG Zhihong +4 more
doaj +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
Abstract Degradation within a manmade earth embankment structure is often unobservable from the surface. In order to evaluate the structural integrity of earth embankment levees and dams and identify subsurface zones of weakness that may result in the future failures of such structures, various geophysical methods have been proposed as effective ...
Steven J. Maniscalco, John E. Ebel
wiley +1 more source
The composition of high rockfill dam materials is complex, and the mechanical parameters are uncertain and correlated in unknown ways due to the influences of the environment and construction, leading to complex deformation mechanisms in the dam ...
Qinqin Guo +5 more
doaj +1 more source

