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Numerical simulation of multi-body floating piers to investigate pontoon stability

Mostafa Shahrabi, Khosrow Bargi

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 325-331 doi: 10.1007/s11709-013-0209-7

Abstract: The objective of this study is to develop a procedure to analyze the motions of a floating pier comprised of several pontoons that are modeled as rigid bodies and connected to each other by flexible and rigid connectors. Recently, the use offloating piers has increased because of their advantages, such as faster and higher-quality construction, seismic force isolation for a full-scale mooring system, low dependence on local soil conditions and tides, ability to relocate or reconfigure the pier modules during the operation period and 75-100 years of repair-free service. A floating pier consists of a pier, access bridge, mooring system and fender system, each of which comes in many variations to suit different usages and construction considerations. The typical loads used in the design of these piers are dead loads, live loads, mooring loads, fender loads and environmental loads induced by wind, currents and waves. For numerical simulation, three types of piers are used: passenger piers, light-cargo piers and semi-heavy-cargo piers. The selected piers consist of several large pontoons joined by pivots and have a pile-based mooring system. These piers are modeled by SAP2000software as two-dimensional frames that are linked together. As the first step, each type of pier is subjected to loading, and its general behavior is assessed. According to this behavior, the major load combinations are described for the design of piers and analyzed to determine the behavior of the modules. Lastly, according to the analysis results and the safe use and stability considerations, such as the maximum draft and longitudinal gradient, the dimensions of each module in each pier type are presented.

Keywords： coastal structures     numerical simulation     floating pier     rigid pontoons     stability    

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Quantitative analysis of microplastics in coastal tidal-flat reclamation in Dongtai, China

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1528-5

Abstract:

• Reclamation projects are important disturbances on microplastic risk in coasts.

Keywords： Coastal reclamation     Engineering geotextiles     Soil microplastics     Weathering simulation     Marine emission    

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Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1523-x

Abstract:

• In sediments, the transformation of sulfides may lead to the release of heavy metals.

Keywords： Coastal wetland     Heavy metal     Sulfur     Biogeochemical cycle    

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Fate of microplastics in a coastal wastewater treatment plant: Microfibers could partially break through

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1517-0

Abstract:

• Fate of microplastics in integrated membrane system for water reuse was investigated.

Keywords： Water reclamation     Integrated membrane system     Microplastics     Removal     Coastal zone    

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Characterization of bacterial communities during persistent fog and haze events in the Qingdao coastal

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1334-x

Abstract:

• Light haze had little effect on bacterial communities.

Keywords： Bacterial community     Persistent fog and haze     Particle size    

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Appraisal of coastal recreational resources in Qingdao by travel cost method

Jingmei LI , Tieying LIU , Yuanyuan ZHANG , Lei LI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 341-347 doi: 10.1007/s11783-009-0038-z

Abstract: This paper serves to appraise the monetary cost of coastal recreational resources in Qingdao using theThe total revenue produced by Qingdao’s coastal recreational resources is about RMB 5.51×10Therefore, this study assesses the reasonable usage of coastal recreational resources.

Keywords： coastal recreational resources     travel cost method (TCM)     regression analysis     Qingdao     China    

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critical review of the emerging research on the detection and assessment of microplastics pollution in the coastal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1563-2

Abstract:

● Coastal and marine regions are the most studied for microplastic

Keywords： Plastic pollution     Waste management     Global south     Sustainability     Marine pollution    

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Variation characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1574-z

Abstract:

● Diurnal patterns of CH4 and CO2 are clearly extracted using EEMD.

Keywords： Methane     Carbon dioxide     Diurnal pattern     Ensemble empirical mode decomposition     South China Sea     Sea breeze    

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Investigating the impact of air pollution on AMI and COPD hospital admissions in the coastal city of

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-021-1490-7

Abstract:

• The impact of air pollution on AMI/COPD hospital admissions were examined.

Keywords： AMI     COPD     Air pollution exposure     GAM    

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Evaluation of the ecological status with benthic indices in the coastal system: the case of Bohai Bay

Wenqian CAI,Wei MENG,Lusan LIU,Kuixuan LIN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 737-746 doi: 10.1007/s11783-013-0617-x

Abstract: Based on biologic and environmental materials collected from coastal areas of Bohai Bay (China) in April

Keywords： AZTI’s Marine Biotic Index     Shannon-Wiener Index     W-statistic     ecological status     coastal system     Bohai    

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Modeling agricultural non-point source pollution in a high-precipitation coastal area of China

Zhiyi LI,Pengfei DU,Haiwei HUANG,Yong Ge,Xu LI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 922-928 doi: 10.1007/s11783-014-0720-7

Abstract: Non-point source (NPS) pollution simulation in the high-precipitation coastal areas of China is difficultProcesses) based NPS model of the Changtan Reservoir watershed, which is a typical high-precipitation coastal

Keywords： Changtan Reservoir watershed     non-point source pollution modeling     pre-rainfall soil moisture     model calibration    

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Numerical simulations of morphological changes in barrier islands induced by storm surges and waves using a supercritical flow model

Soumendra Nath KUIRY, Yan DING, Sam S Y WANG

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 57-68 doi: 10.1007/s11709-014-0235-0

Abstract: advanced explicit finite volume flow model in two-dimensions is presented for simulating supercritical coastalflows and morphological changes in a tidal/coastal inlet and barrier islands due to storm surges andThe resulting integrated coastal process model is capable of simulating flows induced by extreme conditionssuch as waves, surge tides, river flood flows, etc., and morphological changes induced by rapid coastal

Keywords： coastal inlet     coastal process modeling     supercritical flow     sediment transport     barrier islands    

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and land use/cover change and their effects on local environment: a case study of Changshu in eastern coastal

Yurui LI, Hualou LONG, Yansui LIU

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 438-448 doi: 10.1007/s11783-010-0273-3

Abstract: industrial development, land use/cover change (LUCC), and environmental effects in Changshu in the eastern coastal

Keywords： industrial development     land use/cover change (LUCC)     driving forces     environmental effects     ecosystem services value (ESV)     water environmental quality     Changshu    

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Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 105-113 doi: 10.1007/s11708-018-0536-4

Abstract: Outdoor experiments were conducted at the coastal town, Kakinada (16° 93′N/83° 33′E), Andhra Pradesh,

Keywords： distillation efficiency     solar still     heat transfer coefficient     water depth     optimum and mass flow rate    

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Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 224-239 doi: 10.1007/s11709-012-0166-6

Abstract: Modern long-span space structures, developed during the 1970s and 1980s, are light and effective structuresThese structures include air-supported membrane structures, cable-membrane structures, cable truss structures, beam string structures, suspen-domes, cable domes, composite structures of cable dome and single-layersteel structures and so forth., modern flexible space structures and modern rigid-flexible combined space structures.

Keywords： modern long-span space structures     rigid space structures     flexible space structures     rigid-flexible combinedspace structures     application and development    

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Title Author Date Type Operation

Numerical simulation of multi-body floating piers to investigate pontoon stability

Mostafa Shahrabi, Khosrow Bargi

Journal Article

Quantitative analysis of microplastics in coastal tidal-flat reclamation in Dongtai, China

Journal Article

Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to

Journal Article

Fate of microplastics in a coastal wastewater treatment plant: Microfibers could partially break through

Journal Article

Characterization of bacterial communities during persistent fog and haze events in the Qingdao coastal

Journal Article

Appraisal of coastal recreational resources in Qingdao by travel cost method

Jingmei LI , Tieying LIU , Yuanyuan ZHANG , Lei LI ,

Journal Article

critical review of the emerging research on the detection and assessment of microplastics pollution in the coastal

Journal Article

Variation characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in

Journal Article

Investigating the impact of air pollution on AMI and COPD hospital admissions in the coastal city of

Journal Article

Evaluation of the ecological status with benthic indices in the coastal system: the case of Bohai Bay

Wenqian CAI,Wei MENG,Lusan LIU,Kuixuan LIN

Journal Article

Modeling agricultural non-point source pollution in a high-precipitation coastal area of China

Zhiyi LI,Pengfei DU,Haiwei HUANG,Yong Ge,Xu LI

Journal Article

Numerical simulations of morphological changes in barrier islands induced by storm surges and waves using a supercritical flow model

Soumendra Nath KUIRY, Yan DING, Sam S Y WANG

Journal Article

and land use/cover change and their effects on local environment: a case study of Changshu in eastern coastal

Yurui LI, Hualou LONG, Yansui LIU

Journal Article

Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Journal Article

Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Journal Article