Results 281 to 290 of about 2,213,482 (351)

Method for monitoring scour depth of pile foundations based on modal identification

Smart materials and structures (Print), 2021
The monitoring of scour depth is an important link in the later maintenance of offshore wind turbines. However, existing monitoring equipment and methods must be operated underwater and are greatly affected by currents and waves.
Xuguang Chen, Xiao-Chi Niu, Qiyu Xu, Zhenhua Qiu, G. Lu, Anqi Xie   +5 more
semanticscholar   +1 more source

Multi-lens pier scour monitoring and scour depth prediction

Proceedings of the Institution of Civil Engineers - Water Management, 2014
Severe pier scour is usually the major cause of bridge failures. It is therefore crucial to develop various scour monitoring techniques and prediction models for real-time warning of bridge safety. In the present study, a multi-lens monitoring system for pier scour under laboratory conditions has been developed.
Wen-Yi Chang, Franco Lin, Jihn-Sung Lai, Lung-Cheng Lee, Whey-Fone Tsai, Chin-Hsiung Loh   +5 more
openaire   +1 more source

Hydrographs and Estimates of Scour Depth Excess for Pier Scour Prediction

Transportation Research Record: Journal of the Transportation Research Board, 2011
A practical procedure for using the Scour Rate in Cohesive Soils (SRICOS) method to predict bridge pier scour depth in ungauged streams is presented. The procedure is illustrated by the Interstate 90 westbound bridge over Split Rock Creek in South Dakota.
Francis C. K. Ting, Ryan J. Larsen, Allen L. Jones   +2 more
openaire   +1 more source

Comparison of hybrid deep learning models for estimation of the time-dependent scour depth downstream of river training structures

The Physics of Fluids
Submerged weirs, mainly positioned downstream of bridges, play a key role in safeguarding against floods and long-term scour damage. However, the structural stability of these structures could be threatened by local scour holes. This study evaluates five
A. Azma, Yakun Liu, M. Eftekhari, Di Zhang   +3 more
semanticscholar   +1 more source

Scour Depth at Bridges: Method Including Soil Properties. I: Maximum Scour Depth Prediction

Journal of Geotechnical and Geoenvironmental Engineering, 2015
Scour of the soil by flowing water around bridge supports is the number one reason for bridge collapse. Predicting the depth of the scour hole is an integral part of the bridge foundation design, as it impacts the depth of the piles. Indeed, the scour depth must be ignored in the vertical and horizontal resistance of the piles.
openaire   +1 more source

Homography-based continuous bridge scour depth estimation

2023
Scour monitoring in experimental environments relies primarily on visual point-wise measurements that may provide less accurate estimates of scour and its effects. To fulfil these issues many studies and methods has been developed to analyse scour surfaces.
Ana Margarida Bento, Luís Mendes, Rui Ferreira   +2 more
openaire   +1 more source

Generalized scaling law of equilibrium scour depth at a cylinder embedded in an erodible bed

The Physics of Fluids
Turbulent stream approaching a cylinder embedded in an erodible bed triggers significant erosion to form a scour hole. We present a generalized scaling framework for the equilibrium scour depth at a circular cylinder by means of the similarity principle ...
Sk Zeeshan Ali, S. Dey
semanticscholar   +1 more source

Flood-fragility analysis of instream bridges – consideration of flow hydraulics, geotechnical uncertainties, and variable scour depth

Structure and Infrastructure Engineering, 2020
Floods, bridge scour, and flood-associated loads have caused over sixty percent of bridge failures in the U.S. Current practices for the vulnerability assessment of instream bridges under the effect of such flood largely rely on qualitative methods, such
T. Ahamed, J. Duan, H. Jo
semanticscholar   +1 more source

Prediction of scour depth at piers with debris accumulation effects using linear genetic programming

Marine georesources & geotechnology, 2020
Exact evaluation of scour depth around piers under debris accumulation is crucial for the safe design of pier structures. Experimental studies on scouring around pier bridges with debris accumulation have been conducted to estimate the maximum scour ...
M. Jamei, I. Ahmadianfar
semanticscholar   +1 more source

Clear-water scour depth below underwater pipelines

Journal of Hydro-environment Research, 2007
Abstract The paper presents (1) a semi-theoretical model for the computation of maximum clear-water scour depth below underwater pipelines in uniform sediments under steady flow and (2) an experimental investigation on the influence of upward seepage on clear-water scour depth below underwater pipelines.
Subhasish Dey, Navneet P. Singh
openaire   +1 more source