Results 41 to 50 of about 257 (176)

Local large deformation between cut-off wall and core wall on deep overburden by meshless method

open access: yesYantu gongcheng xuebao, 2023
As a significant type of dam on deep overburden, the earth core rockfill dam connects the concrete cut-off wall and soil core wall directly, and the "penetration" phenomenon with local large deformation may exist between cut-off wall and core wall due to
ZOU Degao 1, 2, GONG Jin 1, 2, KONG Xianjing 1, 2, QU Yongqian 1, 2, LIU Jingmao 1, 2, CHEN Kai 1, 2
doaj   +1 more source

Effect of uncertainties in breach location and breach mechanisms on risk‐related classification of off‐stream reservoirs

open access: yesJournal of Flood Risk Management, Volume 18, Issue 1, March 2025.
Abstract Off‐stream reservoirs are artificial water storage structures that increase the flood risk of an area. In some places, related risk reduction plans are based on a risk classification of these structures, which follows local water resource management regulations. These classification methods typically follow deterministic qualitative guidelines
Nathalia Silva‐Cancino   +1 more
wiley   +1 more source

Displacement Prediction of Earth Dam Based on MLR–SARIMA Model

open access: yes工程科学与技术, 2019
In order to analyze the effects of periodic factors and trend factors on the displacement of earth-rockfill dam, and grasp the cause and trend of displacement change better, the change rule and prediction method of periodic component and trend component ...
Bin LI, Dexiu HU, Jie YANG, Lin CHENG
doaj  

Seismic Fragility Analysis of High Earth‐Rockfill Dams considering the Number of Ground Motion Records

open access: yesMathematical Problems in Engineering, 2019
This study analyzes the impact of the number of ground motions on the seismic fragility of a high earth‐rockfill dam and the estimation of reasonable fragility parameters based on a sufficient number of earthquake records. In this paper, the vertical deformation is obtained using the three‐dimensional finite element program DYNE3WAC combined with the ...
Congcong Jin, Shichun Chi
openaire   +1 more source

Experimental Study of Dike‐Break Induced Flow Generated by Instantaneous Opening of the Side Gate

open access: yesJournal of Flood Risk Management, Volume 18, Issue 1, March 2025.
ABSTRACT A large‐scale experimental model of instantaneous dike‐break induced flow was conducted in this work. Water level variations in the river channel and floodplain, breach discharge, and the surface velocity field at the breach were measured during dike failure.
Dawei Zhang   +3 more
wiley   +1 more source

Three‐dimensional characterization of particle morphology in natural gravel and blasted rock fragments using SfM‐MVS photogrammetry

open access: yesRiver, Volume 4, Issue 1, Page 70-83, February 2025.
Structure from Motion‐Multi‐View Stereo photogrammetry 3D reconstruction. Abstract This study aims to develop a high‐precision and cost‐efficient method for the three‐dimensional reconstruction of large particles in natural gravel and blasted rock fragments, utilizing Structure from Motion (SfM) and Multi‐View Stereo (MVS) techniques.
Hongchen Liu   +4 more
wiley   +1 more source

New Type of Dam for Longitudinal Reinforced Rockfill Dam and Its Operation Safety Analysis

open access: yes工程科学与技术, 2019
After a long time operation, a conventional earth rockfill dam (e.g. homogeneous dam or core wall dam) may suffer from a lot of dam diseases such as dam-break, overtopping, landslides and leakage. On the basis of a large number of practices of rebuilding
Jun LIANG
doaj  

Coarse‐Grained Ore Distribution on Conveyor Belts With TRCU Neural Networks

open access: yesIET Image Processing, Volume 19, Issue 1, January/December 2025.
(1) The method can be used as technical support and the basis for subsequent real‐time particle size detection in the beneficiation process. (2) The proposed model combines Transformer and residual blocks with the CBAM attention mechanism in the encoder‐decoder. (3) The proposed model can effectively partition the ore particles of different grain sizes.
Weinong Liang   +6 more
wiley   +1 more source

Marine Fish Passage—Underappreciated Threats to Connectivity Within the Marine Environment

open access: yesMarine Ecology, Volume 46, Issue 1, January 2025.
ABSTRACT Habitat fragmentation is a major threat to aquatic biodiversity loss. However, much of the focus is on the connectivity of freshwaters, with much less attention given to marine ecosystems. We contend that coastal infrastructure including bridges, causeways, tidal turbines, land infilling and harbours, wharfs, quays, piers and docks have ...
Robert J. Lennox   +9 more
wiley   +1 more source

Enhanced Stability and Liquefaction Resistance of Earth Dams With a Proposed Method of Geosynthetic Reinforcements

open access: yesAdvances in Civil Engineering, Volume 2025, Issue 1, 2025.
This study evaluates the static and seismic stability of the Narasimharaya Sagar (Gorukallu Balancing Reservoir) earthen dam, located in India’s seismically active Zone II. Using GeoStudio software, seepage, slope stability, and liquefaction analyses were conducted to assess the dam’s performance under static and dynamic conditions.
Chih-Wei Lu   +6 more
wiley   +1 more source

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