Results 21 to 30 of about 6,260 (209)

Slope Stability Analysis of Earth-Rockfill Dams Using MGA and UST [PDF]

open access: yesJournal of Computational Engineering, 2015
The nonlinear Unified Strength Theory (UST), which takes into account the effect of intermediate stress and nonlinear behavior on geotechnical strength, is applied in slope stability analysis of earth-rockfill dams (ERD) in this paper. The biggest drawback for general determination of slip surface is that it must presuppose the shape of slip surface ...
Nansheng Li, Bo Tang, Lihui Xie
openaire   +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

Stochastic seismic stability analysis of dam slopes considering softening of rockfills

open access: yesYantu gongcheng xuebao, 2019
The rockfills of earth-rockfill dams gradually show softening characteristics subjected to earthquakes, especially strong ones, which will affect the safety of dam slopes.
KONG Xian-jing 1, 2, PANG Rui 1, 2, XU Bin 1,2, ZHOU Yang 1, 2, ZOU De-gao 1, 2
doaj   +1 more source

Rockfill material segmentation and gradation calculation based on deep learning

open access: yesCase Studies in Construction Materials, 2022
The gradation of rockfill materials affected the rolling quality and body strength of earth-rockfill dam. To address the limitations of manual screening and traditional computer vision methods, a gradation detection method suitable for rockfill dam ...
Haoyue Fan   +6 more
doaj   +1 more source

Assessment of Foundation Rocks of the Proposed Makhol Dam in the Northern Salah- Alddin, Iraq

open access: yesIraqi Geological Journal, 2023
This study was done as an assessment of the foundation rocks of the proposed Makhol dam in the northern Salah- Aiddin Governorate, Iraq. This study consists of field, laboratory, and office work. It was noticed in the field that the thirteen (13)
Ibrahim Gart   +2 more
doaj   +1 more source

Inverse Parametric Analysis of Seismic Permanent Deformation for Earth‐Rockfill Dams Using Artificial Neural Networks [PDF]

open access: yesMathematical Problems in Engineering, 2012
This paper investigates the potential application of artificial neural networks in permanent deformation parameter identification for rockfill dams. Two kinds of neural network models, multilayer feedforward network (BP) and radial basis function (RBF) networks, are adopted to identify the parameters of seismic permanent deformation for Zipingpu Dam in
Wang, Xu   +3 more
openaire   +1 more source

Experimental study on strength and deformation characteristics of gravelly soil core materials

open access: yesYantu gongcheng xuebao, 2020
For the earth core rockfill dam, the coordination of the strength and deformation of the dam is a key issue that restricts the dam construction. The deformation of the gravelly soil core materials is large, which leads to the transfer of the load to the ...
ZUO Yong-zhen , ZHAO Na , ZHOU Yue-feng
doaj   +1 more source

Stress characteristics of foundation gallery of high core wall rockfill dam

open access: yesYantu gongcheng xuebao, 2017
There are deep overburdens, tens to hundreds of meters thick, on riverbeds in western China where many rockfill dams are under construction or will be built.
FENG Rui , HE Yun-long , BAI Xin-ge
doaj   +1 more source

Experimental Investigation on the Shear Behavior of Interface between High Plastic Clay and Concrete

open access: yesAdvances in Materials Science and Engineering, 2022
The Lianghekou earth core rockfill dam to be built in China will be the third highest rockfill dam in the world. This study presents the results of a series of direct shear tests between high plastic clay and concrete to study the shear behavior of ...
Yumeng Zhu   +4 more
doaj   +1 more source

Dynamic Risk Evaluation and Early Warning of Crest Cracking for High Earth-Rockfill Dams through Bayesian Parameter Updating

open access: yesApplied Sciences, 2020
Crest cracking is one of the most common damage types for high earth-rockfill dams. Cracking risk of dam crest is closely related to the duration of abnormal deformation state. In this paper, a methodology for dynamic risk evaluation and early warning of
Yongfei Wang   +5 more
doaj   +1 more source

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