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7. FLOATING PONTOON MOTIONS, OPERATIONAL SAFE MOTION LIMITS

Author

Freeman, E, Cox, R, Splinter, K, Flocard, F, Freeman, E, Cox, R, Splinter, K, and Flocard, F

Abstract

Increasing Navy Fleet size requires an increase and diversity of maritime facilities. By 2035, around half of the world’s submarines will be operating in the IndoPacifc region (Defence 2016). Submarines offer a unique defence capability and play an essential role in supporting Australia’s maritime security. When berthed, submarines sit lower in the water than other large military vessels and experience more excessive motions in operational wave conditions. As such, shore connected floating pontoons are an important option for developing and operating submarine facilities and are particularly appropriate for both the docking and loading of submarines. The safety of Navy personnel during loading of munitions and general operational tasks require that safe working limits be placed on the motions of these piled floating pontoons. At present, there are no standards assigning suitable limits of motion for floating pontoons in order to maintain the safety/comfort of users undertaking operational activities. This research proposes a set of operational safe motion limits in the form of accelerations to ensure the comfort and safety of floating pontoon users. Experimental work has been undertaken and data collected on the motions of a piled floating pontoon subjected to regular waves, representative of a harbour environment. Pontoon widths, drafts and skirts have been examined under varying wave conditions. The research has found that in many circumstances, the pontoon motions exceed proposed safe working limits and that the application of different pontoon design features can be used to reduce the accelerations of motion to within operational safe motion limits.

Published
2019

12. Establishing the Design Scour Level for Seawalls

Author

Cox, R, Carley, JT, Coghlan, I, Flocard, F, Shand, T, Cox, R, Carley, JT, Coghlan, I, Flocard, F, and Shand, T

Abstract

During the design process for a seawall, selecting the expected beach scour level at or near the toe is one of the most influential decisions affecting overall geometry. The design scour level determines the required depth of the structure to prevent undermining and a range of potential geotechnical failure modes. For coastal engineering design inside the surf zone, the water depth at the structure (which is a function of the bed elevation and the design water level) determines the maximum depth limited breaking wave height that can reach the structure. The design wave and water level conditions at the structure affect the hydraulic performance (wave runup and overtopping) and stability of the structure (required armour size) which have a direct effect on the capital and maintenance costs.In NSW, a scour level of -1 m AHD is commonly adopted as an engineering rule of thumb for seawalls located at the back of a sandy beach. This paper reviews this rule of thumb and recommends that establishment of a design scour level should consider a range of site specific factors during the design process.The design scour level for a seawall is a function of the location of the seawall on the beach system, the storm erosion demand, recession (ongoing and due to sea level rise), sediment strata of the beach system and the interaction of the beach with the structure. Literature evaluating the potential scour at the toe of coastal structures is reviewed. It is found that despite considerable research into the processes responsible for wave induced scour, there are no generally accepted techniques for estimating maximum scour depth for structures which are located high up the beach. The paper outlines a methodology for evaluating the beach scour level for coastal structures following a storm event(s) based on site specific coastal processes.

Published
2015

15. East Coast Study Project - National Geomorphic Framework for the Management and Prediction of Coastal Erosion. May 2013.

Author

Mariani, A, Water Research Laboratory, Faculty of Engineering, UNSW, Turner, I L, Water Research Laboratory, Faculty of Engineering, UNSW, Cox, R J, Water Research Laboratory, Faculty of Engineering, UNSW, Gordon, A D, Water Research Laboratory, Faculty of Engineering, UNSW, Guerry, N, Water Research Laboratory, Faculty of Engineering, UNSW, Drummond, C, Water Research Laboratory, Faculty of Engineering, UNSW, Carley, J T, Water Research Laboratory, Faculty of Engineering, UNSW, Flocard, F, Water Research Laboratory, Faculty of Engineering, UNSW, Mariani, A, Water Research Laboratory, Faculty of Engineering, UNSW, Turner, I L, Water Research Laboratory, Faculty of Engineering, UNSW, Cox, R J, Water Research Laboratory, Faculty of Engineering, UNSW, Gordon, A D, Water Research Laboratory, Faculty of Engineering, UNSW, Guerry, N, Water Research Laboratory, Faculty of Engineering, UNSW, Drummond, C, Water Research Laboratory, Faculty of Engineering, UNSW, Carley, J T, Water Research Laboratory, Faculty of Engineering, UNSW, and Flocard, F, Water Research Laboratory, Faculty of Engineering, UNSW

Published
2013
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16. Generic Design Coastal Erosion Volumes and Setbacks for Australia. June 2012.

Author

Mariani, A, Water Research Laboratory, Faculty of Engineering, UNSW, Turner, I L, Water Research Laboratory, Faculty of Engineering, UNSW, Flocard, F, Water Research Laboratory, Faculty of Engineering, UNSW, Davey, E K, Water Research Laboratory, Faculty of Engineering, UNSW, Goodwin, I D, Water Research Laboratory, Faculty of Engineering, UNSW, Shand, T D, Water Research Laboratory, Faculty of Engineering, UNSW, Carley, J T, Water Research Laboratory, Faculty of Engineering, UNSW, Splinter, K, Water Research Laboratory, Faculty of Engineering, UNSW, Mariani, A, Water Research Laboratory, Faculty of Engineering, UNSW, Turner, I L, Water Research Laboratory, Faculty of Engineering, UNSW, Flocard, F, Water Research Laboratory, Faculty of Engineering, UNSW, Davey, E K, Water Research Laboratory, Faculty of Engineering, UNSW, Goodwin, I D, Water Research Laboratory, Faculty of Engineering, UNSW, Shand, T D, Water Research Laboratory, Faculty of Engineering, UNSW, Carley, J T, Water Research Laboratory, Faculty of Engineering, UNSW, and Splinter, K, Water Research Laboratory, Faculty of Engineering, UNSW

Published
2012
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18. [Superficial siderosis of the central nervous system]

Author

Durieux A, Flocard F, Ferreira A, Jp, Azulay, Felten O, Vincent Navarro, Chedru F, Pouget J, Bequet D, and Clavelou P

Subjects
Adult, Male, Siderosis, Cerebellar Ataxia, Iron, Mental Disorders, Brain, Hemosiderin, Deafness, Middle Aged, Magnetic Resonance Imaging, Spinal Cord, Central Nervous System Diseases, Cerebellum, Humans, Female, Aged, Brain Stem
Abstract

We report five cases of superficial siderosis of the central nervous system. All patients developed progressive deafness and cerebellar ataxia associated with pyramidal tract signs or mental deterioration. The cerebrospinal fluid examinations usually revealed an elevated protein level, without other abnormalities. Magnetic resonance imaging typically showed a hypointense rim around the cerebral and cerebellar hemispheres, the brainstem and the spinal cord on T2-weighted images. A definite source of bleeding was only found in two patients. The literature on superficial siderosis is reviewed. The etiologies and the pathogenesis are discussed.

Published
1999

19. [Limbic encephalitis and SIADH revealing small-cell anaplastic lung cancer: MRI and immunologic findings]

Author

Emmanuel Touzé, Jb, Auliac, Carras P, Lecannelie G, Genero-Gygax M, and Flocard F

Subjects
Male, Neurons, Lung Neoplasms, Paraneoplastic Syndromes, Middle Aged, Amygdala, Hippocampus, Magnetic Resonance Imaging, Inappropriate ADH Syndrome, Fatal Outcome, Antineoplastic Combined Chemotherapy Protocols, Limbic System, Encephalitis, Humans, Carcinoma, Small Cell, Autoantibodies
Abstract

Paraneoplastic limbic encephalitis (PLE) is a manifestation of clinico pathological entity encephalo-myelo-neuropathy associated with anti-neuronal antibodies type 1 (ANNA-1 also called anti-Hu). Isolated PLE is rare. We reported a case of PLE in a 61-year-old heavy smoker man. An inappropriate antidiuretic hormone secretion syndrome was associated. Cranial MRI showed hyperintensity in amygdalo-hippocampic regions on T2 weighted sequences which appeared hypointense on T1-weighted sequences without gadolinium enhancement. Anti-Hu antibodies were absent in serum and in CSF. Despite chemotherapy, he died 18 months after disease onset. Our patient presented PLE without myelonouropathy and without ANNA-1 which suggests a different immunopathology.

Published
1998

40. Les cytopathies mitochondriales

Author

Mousson, B., primary, Maire, I., additional, Carrier, H., additional, Flocard, F., additional, Flechaire, A., additional, and Vídailhet, M., additional

Published
1991
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42. Neurologic facial testing for odontologist and maxillofacial surgeon.

Author

Taillia, H., de Greslan, T., Renard, J.-L., and Flocard, F.

Abstract

Copyright of EMC-Dentisterie is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2004
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