Results 81 to 90 of about 7,725 (269)

Geophysical imaging of the subsurface seismic structure of the Chestnut Hill Reservoir earth embankment dam (Massachusetts)

open access: yesNear Surface Geophysics, Volume 23, Issue 2, Page 105-120, April 2025.
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

Study of Stress and Deformation of High Concrete-Face Rockfill Dam on Steep Slope in Narrow Valley

open access: yesRenmin Zhujiang, 2022
At present,in the finite-element stress and strain calculation of rockfill dams,fixed support is mostly adopted to simulate the connection between the rockfill at the bank slope and the slope.As for a concrete-face rockfill dam (CFRD) in the steep slope ...
HOU Bingling, NIE Baisong
doaj  

Seepage–Deformation Coupling Analysis of a Core Wall Rockfill Dam Subject to Rapid Fluctuations in the Reservoir Water Level

open access: yesWater
Core wall rockfill dams are susceptible to cracking at the dam’s crest, as well as collapse and settlement of the rockfill during storage and operation periods, particularly due to rapid fluctuations in the water level in pumped storage power stations ...
Xueqin Zheng   +4 more
semanticscholar   +1 more source

A machine vision‐based intelligent segmentation method for dam underwater cracks using swarm optimization algorithm and deep learning

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 10, Page 1405-1417, 18 April 2025.
Abstract Ensuring the safety of water networks is a research hotspot in the current water conservancy industry, and dams are an important part. However, over time, the dam is prone to varying degrees of aging and disease, most of which are structural cracks.
Yantao Zhu, Xinqiang Niu, Jinzhang Tian
wiley   +1 more source

Stress-strain study for one rockfill aiming concrete face rockfill dam.

open access: yes, 2007
O crescimento do número de Barragens de Enrocamento com Face de Concreto (BEFC) no Brasil e no mundo e os problemas relacionados com a movimentação da face motivaram o desenvolvimento deste estudo sobre o comportamento mecânico do enrocamento. Geralmente,
Basso, Rafael Vinícius   +1 more
core   +1 more source

Influence of particle crushing on the critical state line of rockfill materials [PDF]

open access: yesE3S Web of Conferences
The mechanical behaviour of rockfill materials is strongly affected by particle breakage, which causes a continuous variation of the grain size distribution (GSD) until a stationary condition.
Ventini Roberta   +3 more
doaj   +1 more source

Automated Particle Shape Identification and Quantification for DEM Simulation of Rockfill Materials in Subgrade Construction

open access: yesAdvances in Materials Science and Engineering, 2022
Rockfill materials, conducted by impermeable stone, are frequently used in subgrade construction projects. The irregularity and variability of particle shape are demonstrated to affect the mechanical properties of rockfill subgrade, such as void ratio ...
Hao Bai   +4 more
doaj   +1 more source

Research on Failure Modes and Causes of 100-m-High Core Wall Rockfill Dams

open access: yesWater
Rockfill dams are the most competitive type of dam in complex geological environments. Identifying the failure modes and causes in high dams over 100 m is critical for better guiding high dam designs and implementing safety prevention and control ...
Yanan Li   +4 more
semanticscholar   +1 more source

Construction and Analysis of Slope Plane Deformation of High CFRD Based on Statistical Analysis of Multi‐Points Monitoring Data

open access: yesEngineering Reports, Volume 7, Issue 3, March 2025.
This study proposed a method of modeling and analysis of dam slope plane deformation based on multi‐points monitoring data. Firstly, based on the sort out and analyze of actual monitoring data of the Hongjiadu CFRD, the deformation property of the dam has been mastered.
Xiongxiong Zhou   +4 more
wiley   +1 more source

Correlation and distribution model for nonlinear strength parameters of rockfill based on Copula function

open access: yesYantu gongcheng xuebao, 2020
The uncertainty and correlation of nonlinear strength parameters of rockfill are the key factors affecting the stability reliability analysis results of rockfill dam slopes.
KONG Xian-jing 1, 2, SONG Lai-fu 1, XU Bin 1, 2, ZOU De-gao 1, 2
doaj   +1 more source

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