Results 31 to 40 of about 19,764 (340)

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

Scour Characteristics and Equilibrium Scour Depth Prediction around Umbrella Suction Anchor Foundation under Random Waves

Journal of Marine Science and Engineering, 2021
A series of numerical simulation were conducted to study the local scour around umbrella suction anchor foundation (USAF) under random waves. In this study, the validation was carried out firstly to verify the accuracy of the present model.
Ruigeng Hu, Hongjun Liu, Hao Leng, Peng Yu, Xiuhai Wang   +4 more
doaj   +1 more source

Extremes in dune preservation: controls on the completeness of fluvial deposits [PDF]

, 2015
Understanding sedimentary preservation underpins our ability to interpret the ancient sedimentary record and reconstruct palaeoenvironments and palaeoclimates.
Amsler, Mario Luis, Best, James L., Hardy, Richard J., Orfeo, Oscar, Parsons, Daniel R., Reesink, Arnold J., Szupiany, Ricardo Nicolas, Van den Berg, J. H.   +7 more
core   +1 more source

Effect of tailwater depth on local scour downstream of horizontal jets [PDF]

علوم و مهندسی آبیاری, 2010
In this paper the results of an experimental study on the effect of tailwater depth on the mechanism of scouring downstream of hydraulic jumps is presented.
Mohammad Hosain Omid, Hossein Hamidifar, Mohsen Nasr Abadi   +2 more
doaj   +1 more source

Evolution features of riverbeds near underwater crossing line pipes: An experimental study

Natural Gas Industry B, 2020
It is of important significance to study the evolution law of the riverbed near underwater crossing line pipes for ensuring the safe operation of oil and gas pipelines and reducing the risk of damage by water flood disasters.
Qian Yang, Mingnan Sun, Mo He, Qinghua Yang   +3 more
doaj   +1 more source

Investigation of the Effect of Six Legged Concrete (SLC) Elements Combined with Riprap on Scour Depth at Vertical Wall Bridge Abutments [PDF]

علوم و مهندسی آبیاری, 2019
Destruction of bridges caused by scour and other natural phenomenon brings about financial and life losses. Hence, researchers have been studied extensively the scour mechanism and methods of scour countermeasure.
Ali Akbar Hosein Reza, Mahmood Shafai bajestan, Mehdi Ghomeshi, Manoochehr Fathi Moghadam   +3 more
doaj   +1 more source

Bridge Scour : Basic Mechanisms and Predictive Formulas [PDF]

, 2021
En förstudie av lokal erosion vid broar med fokus på förändrade flödesförhållanden på grund av ...
Das, Rajib, Inamadeen, Fainaz, Larson, Magnus   +2 more
openaire   +1 more source

Tidal Bore Scour around a Spur Dike

Journal of Marine Science and Engineering, 2022
Tidal bores are a natural phenomenon with high flow velocity and destructive potential. A spur dike is a widely used river regulation and embankment protection structure that minimizes erosion, promotes deposition, and protects riverbanks.
Dongzi Pan, Ying Li
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

Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil

Journal of Marine Science and Engineering, 2022
A novel scour protection approach for pipeline using the Ionic Soil Stabilizer (ISS) solidified soil was proposed in this study. The ISS-solidified slurry can be poured adjacent to the pipeline immediately after it was placed, or in the growing scour ...
Ruigeng Hu, Xiuhai Wang, Hongjun Liu, Hao Leng   +3 more
doaj   +1 more source