Results 11 to 20 of about 4,330 (260)

Large-scale experimental study on scour around offshore wind monopiles under irregular waves

Water Science and Engineering, 2022
The Keulegan-Carpenter (KC) number is the main dimensionless parameter that affects the local scour of offshore wind power monopile foundations. This study conducted large-scale (1:13) physical model tests to study the local scour shape, equilibrium ...
Song-gui Chen, En-yu Gong, Xu Zhao, Taro Arikawa, Xin Chen   +4 more
doaj   +1 more source

Visualization Tests on Variation of Scour Front under a Pipeline in Steady Currents

Journal of Marine Science and Engineering, 2019
The intersection of the span shoulder and the scour hole under a pipeline, also called the scour front, can affect the scour hole extension rate and the bearing capacity of the span shoulder, which is associated with pipeline spanning and failure ...
Liquan Xie, Yehui Zhu, Tsung-Chow Su
doaj   +1 more source

Electromagnetic Sensors for Underwater Scour Monitoring

Sensors, 2020
Scour jeopardises the safety of many civil engineering structures with foundations in riverbeds and it is the leading cause for the collapse of bridges worldwide.
Andrea Maroni, Enrico Tubaldi, Neil Ferguson, Alessandro Tarantino, Hazel McDonald, Daniele Zonta   +5 more
doaj   +1 more source

Analysis of Lateral Dynamic Response of Caisson Foundation in Layered Clayey Soils considering Scour-Hole Dimensions

Shock and Vibration, 2020
As a cross-sea or river deep-water foundation, it is clear that the caisson foundation will be subjected to significant lateral dynamic loads due to winds or waves and suffer from scouring under its long-term effect.
Wenbo Tu, Xiaoqiang Gu, Xianfeng Ma, Dawei Huang   +3 more
doaj   +1 more source

Clean Cut (adaptive, multimodal surgical infection prevention programme) for low‐resource settings: a prospective quality improvement study

BJS (British Journal of Surgery), EarlyView., 2020
Clean Cut is a multimodal, adaptive, checklist‐based infection prevention programme designed to improve compliance with six critical perioperative infection prevention practices. After introducing the programme at five hospitals in Ethiopia, compliance with critical infection prevention standards significantly improved and the relative risk of ...
J. A. Forrester, N. Starr, T. Negussie, D. Schaps, M. Adem, S. Alemu, D. Amenu, N. Gebeyehu, T. Habteyohannes, F. Jiru, A. Tesfaye, E. Wayessa, R. Chen, A. Trickey, S. Bitew, A. Bekele, T. G. Weiser   +16 more
wiley   +1 more source

Quantification of Modelling Uncertainties in Bridge Scour Risk Assessment under Multiple Flood Events

Geosciences, 2019
Local scour is a dynamic process evolving during the lifetime of bridges as a result of the changes in hydrologic and hydraulic conditions. Current approaches for scour risk assessment are generally based on the evaluation of the equilibrium scour depth ...
Alonso Pizarro, Enrico Tubaldi
doaj   +1 more source

Experimental study on local scour around the pile on the sandy seabed under wave action

Shui kexue jinzhan, 2018
The local scour caused by a pile on a slope differs to that at the flat sand bed. A 1:16 slope with sediment median size of 0.32 mm was set up, and an experimental study of local scour around the pile under the action of regular wave was conducted. Under
CHENG Yongzhou, TANG Wen, LI Dianqi, HUANG Xiaoyun, XIA Bo   +4 more
doaj   +1 more source

SCOUR MONITORING SYSTEM

Proceedings of the 39th IAHR World Congress, 2022
Monitoring system is essential for improving the understanding of scour processes next to structures built in the riverine environment. State-of-the-art review shows a lack of field scour measurements due to expensive specialized equipment, time-consuming surveys, and difficulties in data acquirement during floods.
Fliszar, Robert, Gilja, Gordon, Harasti, Antonija, Varga, Matej   +3 more
openaire   +1 more source

Research progress on scour at weir-like structures

Shui kexue jinzhan, 2017
Local scour depth at weir-like structures is one of the most important engineering design parameters, which significantly affects the stability and safety of the structure.
GUAN Dawei, YAN Yixin, ZHENG Jinhai, Bruce MELVILLE, Lu WANG   +4 more
doaj   +1 more source

SCOUR NEAR SPILL-THROUGH TYPE ABUTMENT ON CLEAR-WATER SCOUR CONDITION FOR MULTI-SECTION CHANNELS

Journal of Civil Engineering
Scour is a natural phenomenon caused by erosion due to water flow on the alluvial channel bed and channel wall. In fact, scour happened in the bridge abutment is total scour, that is a combination between local scour, general scour, and constriction ...
Jaji Abdurrosyid, Achmad Karim Fatchan
doaj   +1 more source