Results 21 to 30 of about 7,725 (269)

The Wetting Deformation Model of Rockfill and Its Two Methods for Simulating Rockfill Dam Collapse Settlement. [PDF]

open access: yesScientificWorldJournal, 2023
The wetting deformation of the upstream dam shell material during the impoundment of the core wall rockfill dam seriously affects the safety of the dam.
Pan L, Fan Z, Wang D, Zhou X.
europepmc   +2 more sources

Research Hotspot and Trend Analysis of Earth-Rockfill Dam Stability Based on Knowledge Map

open access: yesRenmin Zhujiang
Since the 20th century, earth-rockfill dam instability accidents have occurred frequently all over the world. In order to systematically summarize the current status and hotspots of research on earth-rockfill dam stability and analyze the future ...
WANG Luoxi   +4 more
doaj   +4 more sources

Research on Permeability Characteristics and Gradation of Rockfill Material Based on Machine Learning

open access: yesWater
The density of rockfill material is an important index to evaluate the quality of rockfill dams. It is of great significance to accurately obtain the densities and permeability coefficients of rockfill material dams quickly and accurately by scientific ...
Qigui Yang   +5 more
semanticscholar   +2 more sources

Effects of toe configuration on throughflow properties of rockfill dams [PDF]

open access: yes, 2021
Rockfill dams must be equipped with defence mechanisms to counteract the destabilizing effects of throughflow forces under accidental leakage scenarios. A key component of the rockfill dam overtopping system is the rockfill dam toe, constructed in tandem
Rokstad, Marius Møller   +3 more
core   +2 more sources

Dilatancy behaviors of rockfill materials considering particle breakage

open access: yesYantu gongcheng xuebao, 2021
In order to study the relationship between particle breakage and dilatancy characteristics of rockfill materials under different porosity and stress conditions, the large-scale triaxial tests are carried out on the rockfill materials of a high rockfill ...
SHI Bei-xiao 1, 2, LIU Sai-chao 3, WU Xin-lei 3, CHANG Wei-kun 3
doaj   +1 more source

Damage evolution mechanism and safety evaluation criterion of ultra-high rockfill dam system under strong earthquakes

open access: yesYantu gongcheng xuebao, 2022
Several ultra-high earth and rockfill dams up to 250 to 300 m in height are to be built in the intensive earthquake regions of West China. The strong outburst and high uncertainty of strong earthquakes pose a great threat to the safety of ultra-high ...
ZOU De-gao 1, 2, LIU Jing-mao 1, 2, KONG Xian-jing 1, 2, CHEN Kai 1, 2, QU Yong-qian 1, 2, NING Fan-wei 1, 2, GONG Jin 1, 2
doaj   +1 more source

Hydraulic and structural evaluation of rockfill dam behavior when exposed to throughflow and overtopping scenarios [PDF]

open access: yes, 2020
Dams are vulnerable to extreme flood events in turn leading to accidental overtopping. This inparticular applies to rockfill dams comprised of pervious and erodible material.
Ravindra, Ganesh Hiriyanna Rao
core   +1 more source

Study and application of control indices for filling quality of high concrete face rockfill dams

open access: yesYantu gongcheng xuebao, 2020
Based on the filling gradation of rockfill of Aertashi high concrete face dam under construction, field large-scale relative density tests are carried out. The three-factor map is used to study the design method of the double-control filling standards of
ZHU Sheng 1, 2
doaj   +1 more source

Rockfill material uncertainty inversion analysis of concrete-faced rockfill dams using stacking ensemble strategy and Jaya optimizer

open access: yesWater Science and Engineering, 2023
Numerical simulation of concrete-faced rockfill dams (CFRDs) considering the spatial variability of rockfill has become a popular research topic in recent years.
Qin Ke   +3 more
doaj   +1 more source

Experimental study on grouting technology of rockfill and mechanical properties after grouting

open access: yesYantu gongcheng xuebao, 2019
The self-compacting mortar is used to carry out on-site grouting tests on sandstone rockfill materials to verify the controllability of the diffusion range of rockfill grouting and the feasibility of grouting technology.
DENG Cheng-jin 1, 2, DANG Fa-ning 1, MIAO Zhe 2, CHEN Xin-zhou 3
doaj   +1 more source

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