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Journal ArticleDOI

Experimental Study on Influence of Pile Wall on Flow Field Around Pile-Supported Wharf

01 Sep 2020-Journal of Waterway Port Coastal and Ocean Engineering-asce (American Society of Civil Engineers)-Vol. 146, Iss: 5, pp 04020025
TL;DR: In order to ensure the mooring safety of vessels, improving the structure form of the wharf can improve the vessel's safety in deep-sea ports as discussed by the authors, which is a significant influence on vessel moorings.
Abstract: Tidal flow has a significant influence on the mooring safety of vessels in deep-sea ports. In order to ensure the mooring safety of vessels, improving the structure form of the wharf can d...
Citations
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Journal Article
TL;DR: In this article, the influence of ship feature and wave pa-rameters on wave loading of mooring ship was analyzed and a new calculating method of total force induced by wave on the ship was proposed.
Abstract: According to test result of physical model on mooring force,the influence of ship feature and wave pa-rameters on wave loading of mooring ship was analyzed and a new calculating method of total force induced by wave on the ship was proposedThen a calculation method of mooring force induced by waves was put forward referring to the method of mooring force induced by wind and currents adopted by Load Code for Harbor Engineering(JTJ215— 98)The examples indicated that the calculated results accorded with the test results very wellIt was concluded that the new method could be a good reference for mooring force of ship design and fill the blank of Load Code for Harbor Engineering(JTJ215—98),which did not consider the calculation of mooring force induced by waves

3 citations

01 Jan 2004
TL;DR: In this paper, five generalized physical models of different distortion ratios were built according to DOU Guo-ren' s similarity theory of total sediment transport modeling for estuarine and coastal regions.
Abstract: Five generalized physical models of different distortion ratios were built according to DOU Guo-ren' s similarity theory of total sediment transport modeling for estuarine and coastal regions. Experiments on local scour in front of groins were made under the actions of tidal currents and waves with clear and sediment entraining water. The scour depths under different dynamic actions are compared. The effect of the distortion ratio on the depth of scour hole is discussed. A relationship between scour depths for distorted and undistorted models is given.

2 citations

Journal ArticleDOI
TL;DR: Tan et al. as mentioned in this paper reported the model test on the dynamic response of LNG vessel mooring system under the wave-current-wind loads, including movements of vessel and tension forces of moorings cables.
Abstract: Tan, H.M.; Chen, F.M., and Chen, J., 2018. Model test on influence of berth length on LNG vessel mooring under wave-current-wind loads. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 1061–1065. Coconut Creek (Florida), ISSN 0749-0208. The movement of mooring vessel is complicated under the combined impacts of wave, current and wind, and the interactions between vessel and port structure are significantly affected by mooring cable and rubber fender. Also, the berth length has great influence on the installation of mooring cable. This paper reports the model test on the dynamic response of LNG vessel mooring system under the wave-current-wind loads, including movements of vessel and tension forces of mooring cables. Depending on the vessel length (L), the different berthengths (1.1L, 1.2L and 1.3L) were designed in model tests. The model test results s...

2 citations

Journal Article
TL;DR: In this article, a physical model of ship mooring was carried out to determine the maximal ship motion, lines force and impact force under the combined action of wind, wave, current and different loadage and water levels.
Abstract: To meet the requirement of wharf design and using-guide for Shandong LNG receiving station project,the physical model of ship mooring was carried out in order to determine the maximal ship motion,lines force and impact force under the combined action of wind,wave,current and different loadage and water levels.Two berth lengths for 266,000 m3 LNG(370 m and 390 m) and two mooring line arrangements(4222 and 3322)were compared.The results show that mooring conditions can be improved with the decrease of berth length.The average reduction is about 10% for ship motion and 4%~11% for lines force,but the change of impact force is not obvious.The ship motion and impact force can satisfy the recommendation of PIANC(1995).The line force over standard(50%MBL) occurs under 10 s and 12 s wave periods,and the line arrangement of 3322 is better than 4222.The fender impact force can satisfy the design standard value.

1 citations

References
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Journal ArticleDOI
TL;DR: A large-scale physical model was created in Oregon State University's Large Wave Flume to collect an extensive dataset measuring wave-induced horizontal and vertical forces on an idealized coastal structure as discussed by the authors.

73 citations

Journal ArticleDOI
TL;DR: In this article, a vertical structure with an overhanging horizontal cantilevering slab is tested in a small-scale test set-up (with a scale factor of 1:20) under loading conditions of violent wave impacts.

52 citations

Journal ArticleDOI
TL;DR: In this paper, large-scale experiments were conducted at the Coastal Research Centre (FZK), Germany to characterize the mechanics and characteristics of impact pressures due to breaking waves on a vertical sea wave.
Abstract: Large-scale experiments were conducted at the Coastal Research Centre (FZK), Germany to characterize the mechanics and characteristics of impact pressures due to breaking waves on a vertical sea wa...

24 citations

Journal ArticleDOI
TL;DR: The physical principle that governs how ships are moored to a port has changed little over the years as mentioned in this paper, however, there have been developments in maritime transport towards increased vessel dimensions and operations in specialist terminals, which means that offshore ports and mooring systems have to face more challenging conditions in terms of the waves, wind and drift current.
Abstract: The physical principle that governs how ships are moored to a port has changed little over the years. Nevertheless, in recent decades, there have been developments in maritime transport towards increased vessel dimensions and operations in specialist terminals. These trends mean that offshore ports and mooring systems have to face more challenging conditions in terms of the waves, wind and drift current. At the same time, pier side port loading and unloading systems place demands on the mooring system, which must immobilise ships better. In this situation, the mooring system’s own equipment, such as lines, deck fittings and mooring winches, must also evolve to work alongside new port devices. It is also necessary to point out that changes in mooring will take place in subsequent years. These innovations in attaching the ship to the pier will be highlighted here as they mark a significant change in mooring and pier components.

19 citations

Journal ArticleDOI
TL;DR: In this paper, the influence of aerodynamic loads on a mooring system for ship and investigates whether windscreens can reduce aerodynamic load on ships in ports, by reducing the freeboard of the ship.
Abstract: Ports and terminals open to prevailing winds can cause problems to moored ships with a high freeboard. Such ships, i.e. ship and berth mooring systems, have to deal with significant aerodynamic loads.This paper addresses the theoretical approach of the influence of aerodynamic loads on a mooring system for ship and investigates whether windscreens can reduce aerodynamic loads on ships in ports.

15 citations