Results 41 to 50 of about 145,008 (321)

Empirical Formulas to Predict the Maximum Scour Depth With Debris Accumulation Around A Single Cylindrical Bridge Pier: An Experimental Study [PDF]

Engineering and Technology Journal, 2020
The probability of debris accumulation near bridge piers during the heavy storm and river flood convert the hydraulic action of flow and increase the scour depth due to the reduction of flow area and the increase in velocity of flow.
Mahmoud Saleh Al-Khafaji, Aysar Al-Awadi
doaj   +1 more source

Amidase‐Catalyzed Desorption of CO2 Captured in Aqueous Monoethanolamine (MEA) Solutions

Angewandte Chemie, EarlyView.
CO2 is captured in aqueous monoethanolamine (MEA) sorbents as carbamate and bicarbonate/carbonate. The subsequent desorption for storage or utilization is energy‐intensive, and this is a major impediment to industrial carbon dioxide removal (CDR) processes. The desorption process can be promoted by enzymes that catalyze the dissociation of distinct CO2‐
Yang Yang, Onur Kırtel, Silke Flindt Badino, Lea Helena Strother, Laura Rotilio, Jerik Mathew Valera Lauridsen, Stefanie Neun, Jens Preben Morth, Ji‐Woong Lee, Ditte Hededam Welner, Peter Westh   +10 more
wiley   +2 more sources

Effect of submergence ratio of parallel wall on bridge abutment scour

Alexandria Engineering Journal, 2018
Scour at bridge abutment could be the main cause of bridge failures, leading to increased repair costs and reduced accessibility to roads. Thus, study and research on the prediction of scour at bridge abutment and its prevention is of great importance ...
Fatane Sadeghi, Yousef Ramezani, Hossein Khozeymehnezhad   +2 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

Clear-Water Scouring Process in a Flow in Supercritical Regime [PDF]

Journal of Hydraulic Engineering, 2016
AbstractThe aim of this research is to measure the clear-water scouring produced by supercritical flow around a rectangular-shaped obstacle. The initial uniform flow condition without the obstacle is such that the Shields parameter remains slightly lower than critical so that the sediment constituting the mobile bed is not transported.
E. Mignot, T. Moyne, D. Doppler, N. Riviere   +3 more
openaire   +1 more source

Performance of microbially induced calcite precipitation (MICP) as a local scour countermeasure for offshore wind turbine monopile foundation

International Journal of Sediment Research
Microbially induced calcite precipitation (MICP) is an emerging method for mitigating scour and erosion. The present study experimentally investigates the efficacy of MICP as a local scour countermeasure for offshore wind turbine monopile foundations ...
Zihao Tang, Bruce W. Melville, Naresh Singhal, Asaad Y. Shamseldin, Liang Cheng, Dawei Guan   +5 more
doaj   +1 more source

Simultaneous Effect of Collar and Roughness on Reducing and Controlling the Local Scour around Bridge Abutment

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017
Investigation of local scour around hydraulic structures particularly bridges is of crucial importance in river engineering. Bridge destruction mostly occurs as a result of scour phenomenon around piers and abutments, not because of structural weaknesses.
Hamed Shahsavari, Manouchehr Heidarpour, Mohammad Mohammadalizadeh   +2 more
doaj   +1 more source

Predicting temporal clear water scour depth around bridge piers with XGBoost and SVM–PSO approaches

Journal of Hydroinformatics
The phenomenon of scouring around a bridge pier involves the removal of sediment from the riverbed and banks due to water flow, particularly accelerated flow caused by obstruction from the bridge pier.
Anubhav Baranwal, Prince Gaurav, Lohit Reddy, B. Das, B. Naik   +4 more
semanticscholar   +1 more source

Scour around submarine pipes due to high-amplitude transient waves

Water Science and Engineering, 2020
Estimation of scour dimensions below submarine pipelines is a vital step in designing offshore infrastructure. Extreme events like tsunami waves produce strong erosive forces below the underwater pipes, apt to create scour holes, jeopardizing the safety ...
Hassan Vosoughi, Hooman Hajikandi
doaj   +1 more source

Characteristics of reducing local scour around cylindrical pier using a horn-shaped collar

Journal of Engineering and Applied Science, 2022
Local scour is the major cause of bridge water damage. The sediment in the riverbed around the pier is eroded and transported by water flow, leading to a loss of bridge foundation stability.
Kedian Luo, Yuhang Si, Shaohua Lu, Boyang Liang, Hongliang Qi   +4 more
doaj   +1 more source