Results 31 to 40 of about 6,112,351 (103)

Local scour around a bridge pier under ice-jammed flow condition – an experimental study

Journal of Hydrology and Hydromechanics, 2021
The appearance of an ice jam in a river crucially distorts local hydrodynamic conditions including water level, flow velocity, riverbed form and local scour processes.
Wang Jun, Hou Zhixing, Sun Hongjian, Fang Bihe, Sui Jueyi, Karney Bryan   +5 more
doaj   +1 more source

Analysis of lateral bearing behaviors of scoured monopile foundations considering the influence of length-to-diameter ratio

Shuili Shuiyun Gongcheng Xuebao, 2023
Scour is one of the key factors that should be considered in the design process of offshore wind turbine (OWT) monopile foundations. However, the geometry of local scour pit and embedded length-to-diameter ratio of pile (L/D) are always ignored in ...
ZHANG Rongsheng, LIU Hanqiu, ZHU Ronghua, TIAN Zhenya, SUN Xiang   +4 more
doaj   +1 more source

Experimental investigation of local scour around multi-vents bridge piers

Alexandria Engineering Journal, 2015
The harmful effect of local scour around bridge piers and abutments can induce high maintenance costs or even bridge collapse resulting in the disturbance of traffic and possibly human losses.
Yasser A. Mohammed, Yasser K. Saleh, Abdel-Azim M. Ali   +2 more
doaj   +1 more source

Local scour around two pipelines in tandem in steady current

, 2014
In this study, local scour around two identical pipelines in a tandem arrangement are investigated numerically. Two-dimensional Reynolds-averaged Navier-Stokes (RANS) equations are solved for simulating the flow around the pipelines and the conservation ...
J Thapa, Kaja, Kalyani (R17585), Thapa, Jitendra (S30732), K Kaja, Zhao, Ming (R16667), S Vaidya, Vaidya, Shailesh (S31324), M Zhao   +7 more
core   +1 more source

Numerical investigation of wave-induced local scour around a submarine pipeline

, 2014
A two-dimensional numerical model is developed in this work to predict the local scour around subsea pipelines induced by the orbital fluid motion due to free-surface water waves. Instead of being simplified as an oscillatory flow, the motion of the wave
Lin Lu, Ming-Ming Liu, Liu, Mingming, Zhao, Ming (R16667), Lu, Lin, Bin Teng, Ming Zhao, Tang, Guoqiang, Guo-Qiang Tang, Teng, Bin   +9 more
core   +1 more source

Effects of pile caps on local scour at bridge piers [PDF]

, 2006
The most existing pier-scour equations mainly apply to uniformly shaped piers. However, pier footings may often project above the streambed because of scour. This may be caused by either long-term bed degradation or local scour.
B. ONORATI, V. COMUNIELLO, OLIVETO, Giuseppe   +2 more
core   +1 more source

Experimental and numerical investigation into the local scour of bridge cofferdam with anti-scour ribs

Advances in Bridge Engineering
Cofferdam is widely employed in the construction of underwater bridge foundations. Its crucial attribute lies in providing a dedicated platform for construction activities and enhancing the water resistance dimensions in structural design, consequently ...
Pengxin Ran, Kai Wei, Bike Zhang, Lu Wang, Ruihua Nie, Yongle Li   +5 more
doaj   +1 more source

Laboratory Study of Local Scour Around an Array of Pile Groups in Clear-Water Scour Conditions

Journal of Marine Science and Engineering
Current-induced local scour around pile groups weakens the capacity of structures. In this paper, experimental tests of local scour around an array of 5 × 5 pile groups were conducted in a steady current in a hydraulic flume.
Ming Gong, Xinying Pan, Shengtao Du, Guoxiang Wu, Yingxue Lv, Yunjia Sun, Guangjia Ding, Bingchen Liang   +7 more
doaj   +1 more source

Local scour of composite cylindrical wind turbine foundation on fine sand seabed under combined waves and current

Energy Informatics
The composite cylindrical wind turbine foundation is characterized by its large-diameter cylindrical base, which offers superior anti-overturning capability, and it is widely used in the soft soil seabed of Jiangsu, China.
Can Tang, Chunguang Yuan, Wei Tang, Na Zhang   +3 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