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学者姓名：陈橙
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Abstract ：
The waterway transportation industry, recognized for its high capacity, cost-effectiveness, and energy efficiency, plays a vital role in global freight transport and trade. In China, it serves as a key pillar supporting the national economy and foreign trade. However, its heavy dependence on fossil fuels has intensified carbon emission challenges, creating significant barriers to achieving sustainable development goals. This study employs Input-Output Analysis and the Logarithmic Mean Divisia Index model to examine the changes in carbon emissions and their driving factors in China's waterway transportation industry from 2002 to 2020, while also exploring potential pathways for emission reduction. The findings reveal the following: (1) From 2002 to 2020, despite a substantial rise in total carbon emissions, the industry has been progressively transitioning towards a low-carbon trajectory through the adoption of clean energy technologies and optimization of its energy structure. (2) Economic scale effects have been the primary drivers of carbon emission growth, with population-scale effects playing a lesser role. Since 2011, the implementation of green technologies and low-carbon management strategies has effectively stabilized emission growth rates. (3) Improvements in energy carbon intensity and transportation energy intensity have significantly reduced carbon emissions. Moreover, the promotion of clean energy technologies and energy-saving measures has substantially lowered the industry's carbon emission intensity.
Keyword ：
carbon emissions carbon emissions green development green development input-output analysis input-output analysis logarithmic mean Divisia index decomposition logarithmic mean Divisia index decomposition waterway transportation waterway transportation
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| GB/T 7714 | Zheng, Shanshan , Chen, Cheng , Xie, Sikai . An LMDI-Based Analysis of Carbon Emission Changes in China's Waterway Transportation Sector [J]. | SUSTAINABILITY , 2025 , 17 (1) . |
| MLA | Zheng, Shanshan 等. "An LMDI-Based Analysis of Carbon Emission Changes in China's Waterway Transportation Sector" . | SUSTAINABILITY 17 . 1 (2025) . |
| APA | Zheng, Shanshan , Chen, Cheng , Xie, Sikai . An LMDI-Based Analysis of Carbon Emission Changes in China's Waterway Transportation Sector . | SUSTAINABILITY , 2025 , 17 (1) . |
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From an ecological protection perspective, clarifying the spatial and temporal transfer characteristics of embodied carbon in water transport trade among BRICS countries and its driving mechanisms is of great significance for the precise formulation of emission reduction policies. This study integrates the multi-regional input-output model with the LMDI decomposition method to quantitatively analyze the bi-directional flow of embodied carbon in water transport trade among BRICS countries from 1995 to 2018, along with its spatio-temporal differentiation patterns. The driving mechanisms are decomposed across three dimensions: scale, structure, and intensity. By adopting a dual perspective of time-series and spatial correlation, the study systematically uncovers the cross-regional transfer patterns of embodied carbon emissions in water transport trade and examines the interaction pathways of various effects throughout their dynamic evolution. The study finds that (1) the embodied carbon in water transport trade among BRICS countries shows a trend of transnational transfer, with China being the largest net exporter (35.15 Mt in 2018), India and South Africa as net importers (-32.00 Mt and -1.89 Mt in 2018, respectively), and Brazil and Russia shifting from net importers to net exporters; (2) from a temporal perspective, the scale effect drives the growth of embodied carbon emissions (contribution values: 1.23 similar to 119.72 Mt for export trade; 4.88 similar to 34.36 Mt for import trade), while the intensity effect has a suppressive role (contribution values: -59.08 similar to-1.48 Mt for export trade; -20.56 similar to-5.31 Mt for import trade), and the structural effect is complex in its impact on emissions (contribution values: -17.72 similar to 0.45 Mt for export trade; -6.84 similar to 13.93 Mt for import trade). Optimizing the trade structure can help reduce carbon emissions; (3) from a spatial perspective, carbon emissions are higher in Southeast Asia and the Northern Hemisphere, and changes in China's carbon emissions (total effect in 2018: 57.01 Mt in export trade and 7.98 Mt in import trade) significantly affect other BRICS countries. Based on the conclusions of the study, it is suggested that BRICS countries should strengthen cooperation to achieve regional emission reduction targets by optimizing the trade structure of water transport, promoting energy structure reforms, advancing green transport technologies and equipment, and establishing a carbon emission regulatory system.
Keyword ：
ecological protection perspective ecological protection perspective embodied carbon emissions embodied carbon emissions LMDI decomposition LMDI decomposition multi-regional input-output modelling multi-regional input-output modelling waterway transport industry waterway transport industry
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| GB/T 7714 | Zheng, Shanshan , Chen, Cheng , Qiu, Peng . Spatial and Temporal Shifts and Driving Mechanisms of Embodied Carbon in Water Transport Trade in BRICS Countries [J]. | WATER , 2025 , 17 (7) . |
| MLA | Zheng, Shanshan 等. "Spatial and Temporal Shifts and Driving Mechanisms of Embodied Carbon in Water Transport Trade in BRICS Countries" . | WATER 17 . 7 (2025) . |
| APA | Zheng, Shanshan , Chen, Cheng , Qiu, Peng . Spatial and Temporal Shifts and Driving Mechanisms of Embodied Carbon in Water Transport Trade in BRICS Countries . | WATER , 2025 , 17 (7) . |
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The failure mode of the soil behind the rigid support structure of excavations parallel to tunneling was simulated using the adaptive finite-element limit analysis method. This study showed the effects of tunnel diameter, tunnel construction clear spacing, excavation insertion ratio, and soil strength on the failure mode of the soil. Based on the simulated results obtained from finite-element software, a stress field was constructed for the portion above the horizontal plane at the bottom of the excavation support structure. Three types of boundary value problems were solved based on different regional divisions. Eventually, the stress state at any point within the plastic zone was calculated, providing the active earth pressure on the support structure adjacent to the tunnel during its construction. A comparison between the stress characteristic method calculation results and the finite-element simulation results showed consistency, confirming the efficiency and accuracy of the stress characteristic method in calculating the earth pressure on the support structure of excavations parallel to tunneling. © 2024 American Society of Civil Engineers.
Keyword ：
Earth pressure Earth pressure Excavation support structure Excavation support structure Plastic zone Plastic zone Stress characteristic method Stress characteristic method Tunnel construction Tunnel construction
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| GB/T 7714 | Chen, C. , Lv, Y.-P. , Li, X.-J. et al. Active Earth Pressure on the Rigid Support Structures of Excavations Parallel to Tunnel Construction [J]. | International Journal of Geomechanics , 2024 , 24 (8) . |
| MLA | Chen, C. et al. "Active Earth Pressure on the Rigid Support Structures of Excavations Parallel to Tunnel Construction" . | International Journal of Geomechanics 24 . 8 (2024) . |
| APA | Chen, C. , Lv, Y.-P. , Li, X.-J. , Chen, F.-Q. . Active Earth Pressure on the Rigid Support Structures of Excavations Parallel to Tunnel Construction . | International Journal of Geomechanics , 2024 , 24 (8) . |
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Tsunamis pose a significant threat to coastal engineering. A comprehensive physical experiment was conducted to examine the effect of air chambers on vertical structures with overhanging horizontal slabs under tsunami bores. This paper, serving as the second part of the series, contrasts with conditions without air chambers (flat slab as Part I) to underscore the chamber's effects. The experiment employed dam-break waves to simulate tsunamis, and the collected pressure data and experimental images were analyzed. Results show that the chambers restrict water flow, thereby enhancing the impact on the slab. This focusing effect greatly increases both maximum uplift and horizontal pressure (by almost 1.3 times). The uplift pressure rises with increasing chamber volume, while horizontal pressure escalates with greater beam volume. However, both pressures diminish as slab height increases. Water flowing into the chambers disperses air, generating numerous bubbles that accumulate above, forming an air layer that reduces pressure signal fluctuations. This phenomenon of entrained and trapped air is compared and analyzed with existing literature. The maximum pressure of the nearshore air chamber is greater than that of the offshore air chamber by 13% (3.68 kPa vs. 3.27 kPa), while the quasi-steady pressures of the two are almost equal. Differences in pressure between chambers result from the sequence of water flow impacts and reflections. New design envelope equations and conversion coefficients are proposed based on experimental data. The focusing coefficient, considering bore height, slab height, and chamber parameters, is summarized. Novel equations for estimating pressure on a flat slab with specific chambers are proposed, with validation results indicating high accuracy. © 2024 Elsevier Ltd
Keyword ：
Air chamber Air chamber Physical experiments Physical experiments Pressure Pressure Structure model Structure model Tsunami bore Tsunami bore
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| GB/T 7714 | Peng, C. , Chen, C. , Nandasena, N.A.K. et al. Experimental study of dam-break-like tsunami loads on vertical structures with overhanging horizontal slabs: Slab with air chamber [J]. | Ocean Engineering , 2024 , 311 . |
| MLA | Peng, C. et al. "Experimental study of dam-break-like tsunami loads on vertical structures with overhanging horizontal slabs: Slab with air chamber" . | Ocean Engineering 311 (2024) . |
| APA | Peng, C. , Chen, C. , Nandasena, N.A.K. , Deng, X. , Cai, F. , Guan, D. . Experimental study of dam-break-like tsunami loads on vertical structures with overhanging horizontal slabs: Slab with air chamber . | Ocean Engineering , 2024 , 311 . |
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Forecasting typhoon waves during typhoons is crucial. In this paper, the numerical wave model SWAN was enhanced through integration with two machine learning methods: the Back Propagation Neural Network and Random Forest. This integration facilitated the development of two distinct models, namely SWAN-BP and SWAN-Tree. Through correlation analysis, key input features were identified for the machine learning models. The forecasts from the SWAN model were subsequently utilized as inputs to enhance further wave prediction. These hybrid models were validated using data from Typhoon Doksuri (2023) and Typhoon Nesat (2017). The results indicated significant improvements in predicting typhoon-induced wave heights with both the SWAN-BP and SWAN-Tree models compared to the original SWAN model. Specifically, the SWAN-BP model demonstrated a 33% improvement in accuracy for the Typhoon Doksuri, whereas the SWAN-Tree model exhibited a 24% improvement. For Typhoon Nesat, the accuracy improvements were 23% for the SWAN-BP model and 21% for the SWAN-Tree model. These findings demonstrate that integrating wave numerical models with machine learning techniques can significantly enhance the predictive accuracy of numerical models. This approach offers a cost-effective means to improve the existing wave forecasting database. Traditionally, the direct use of meteorological and oceanographic data for typhoon wave prediction might be compromised by biases inherent in the numerical wave models. However, the SWAN-BP and SWAN-Tree models effectively reduce these biases, thereby providing more accurate and robust predictions. In conclusion, this paper enhances the predictive accuracy of the SWAN model and establishes a crucial foundation for more precise typhoon wave forecasting through the application of machine learning techniques.
Keyword ：
back propagation neural network back propagation neural network machine learning machine learning optimization optimization random forest random forest SWAN model SWAN model typhoon waves typhoon waves
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| GB/T 7714 | Chen, Cheng , Lin, Hongkun , Guan, Dawei et al. Enhancing typhoon wave hindcasting with random forests and BP neural networks in the SWAN model [J]. | FRONTIERS IN MARINE SCIENCE , 2024 , 11 . |
| MLA | Chen, Cheng et al. "Enhancing typhoon wave hindcasting with random forests and BP neural networks in the SWAN model" . | FRONTIERS IN MARINE SCIENCE 11 (2024) . |
| APA | Chen, Cheng , Lin, Hongkun , Guan, Dawei , Cai, Feng , Wang, Qiaoyi , Liu, Qingchun . Enhancing typhoon wave hindcasting with random forests and BP neural networks in the SWAN model . | FRONTIERS IN MARINE SCIENCE , 2024 , 11 . |
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In recent years, jacket foundations have been increasingly employed in offshore wind farms. Their complex design comprising piles and trusses poses challenges for conducting comprehensive flow field measurements using physical experiments. Consequently, the influence of the flow field on local scour around these foundations remains unclear. Therefore, numerical simulation methods are essential to depict the surrounding flow characteristics. This study utilizes large eddy simulation (LES) turbulence models within OpenFOAM to simulate the flow field around jacket foundations on flat-bed and equilibrium scour bathymetry. A flume experiment was conducted for numerical model establishment and validation. The close agreement between experimental and numerical results indicates that the LES model accurately reflects the flow patterns around the jacket foundation. Time-averaged and instantaneous flow characteristics, average kinetic energy (AKE), turbulence structure, and bed shear stress were analyzed. The results indicate that flow intensity is reduced due to the shielding effect and energy dissipation by the truss structure of the jacket foundation. Furthermore, the AKE of the flow upstream of the rear piles decreases by 18.9% in the flat-bed state and 28.0% in the equilibrium state, indicating more energy dissipation and less scour at the rear piles in the equilibrium state. The research findings offer valuable insights into the design and scour protection strategies for jacket foundations.
Keyword ：
flow characteristics flow characteristics jacket foundation jacket foundation LES LES local scour local scour numerical simulation numerical simulation
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| GB/T 7714 | Guan, Dawei , Chu, Yinuo , Chen, Cheng et al. Numerical Simulation of Flow Field around Jacket Foundations on Flat-Bed and Equilibrium Scour Bathymetry [J]. | JOURNAL OF MARINE SCIENCE AND ENGINEERING , 2024 , 12 (8) . |
| MLA | Guan, Dawei et al. "Numerical Simulation of Flow Field around Jacket Foundations on Flat-Bed and Equilibrium Scour Bathymetry" . | JOURNAL OF MARINE SCIENCE AND ENGINEERING 12 . 8 (2024) . |
| APA | Guan, Dawei , Chu, Yinuo , Chen, Cheng , Liu, Jingang , Yao, Zishun . Numerical Simulation of Flow Field around Jacket Foundations on Flat-Bed and Equilibrium Scour Bathymetry . | JOURNAL OF MARINE SCIENCE AND ENGINEERING , 2024 , 12 (8) . |
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使用波高仪测量了海啸波的波高并计算了相应波速,随后通过伯努利方程计算了海啸波经过由红树林模型和堤坝模型组成的生态堤坝前后的能量。结果表明,生态堤坝消耗的能量占总消耗量的7 2%～82%,占海啸波总能量的65%～82%。
Keyword ：
伯努利方程 伯努利方程 堤坝 堤坝 溃坝波 溃坝波 红树林 红树林 能量耗散 能量耗散
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| GB/T 7714 | 陈橙 , 彭晨 , 邓鑫 et al. 生态堤坝对海啸波的能量消减分析 [C] //第二十一届中国海洋（岸）工程学术讨论会 . 2024 . |
| MLA | 陈橙 et al. "生态堤坝对海啸波的能量消减分析" 第二十一届中国海洋（岸）工程学术讨论会 . (2024) . |
| APA | 陈橙 , 彭晨 , 邓鑫 , 闫慧 . 生态堤坝对海啸波的能量消减分析 第二十一届中国海洋（岸）工程学术讨论会 . (2024) . |
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Mangroves have a remarkable wave dissipating effect. An experimental study on the tsunami impact building model and mangrove protection effect was carried out. The dam breaking wave was used to simulate the tsunami wave, and the mangrove and building models were installed in the flume. The protective effect of mangroves was studied by measuring the bore height before and after the tsunami wave passed through the mangroves and pressure during tsunami bores impacting buildings and pressure around the building during tsunami bores. The results show that, in all cases, bore heights reduced by mangrove are increased by building obstruction. On the premise that the mangroves are not destroyed, the disaster mitigating effect will not be affected by the wave intensity, but will increase with the mangrove density. Among the three arrangements, the annular arrangement has the best mitigating effect. The process of the tsunami bore impacting the building is divided into four stages: front-hitting, run-up, quasi-steady and recession. Under the protection of mangroves, the pressure at each stage is significantly reduced. For front-hitting pressure, the maximum pressure no longer appears here but in the run-up stage. For quasi-steady pressure, the time history of pressure will oscillate due to bubbles generated when the tsunami passes mangroves. According to Bernoulli principle, mangroves are determined to play a major role in reducing tsunami energy. Finally, based on the experimental data, equations for estimating the quasi-steady pressure in the center of the lower part of the building, and the distribution of pressure on the building are presented.
Keyword ：
Bore height Bore height Building Building Mangrove Mangrove Pressure Pressure Tsunami bore Tsunami bore
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| GB/T 7714 | Chen, Cheng , Peng, Chen , Nandasena, N. A. K. et al. Experimental investigation on tsunami impact reduction on a building by a Mangrove forest [J]. | ESTUARINE COASTAL AND SHELF SCIENCE , 2024 , 301 . |
| MLA | Chen, Cheng et al. "Experimental investigation on tsunami impact reduction on a building by a Mangrove forest" . | ESTUARINE COASTAL AND SHELF SCIENCE 301 (2024) . |
| APA | Chen, Cheng , Peng, Chen , Nandasena, N. A. K. , Yan, Hui . Experimental investigation on tsunami impact reduction on a building by a Mangrove forest . | ESTUARINE COASTAL AND SHELF SCIENCE , 2024 , 301 . |
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Owing to the rare occurrence of tsunamis in the Arabian Sea, and the lack of reliable records on them, tsunami preparedness has not been prioritized in plans for the development of coastal cities in the Middle East. However, an increase in the number of earthquakes in the region in the recent past has highlighted the vulnerability of low-lying coastal areas to tsunamis. We investigate the potential of date palm forests to mitigate tsunamis in the Middle East. Experiments were conducted at a scale of 1:100 to assess the effectiveness of forests in reducing the intensity of tsunamis. The reflection at the front of the forest was negligibly small when the depth of flow was lower than the height of the canopy, and increased with the height of the tsunami wave when the depth of flow was higher than the height of the canopy. This shows that the structure of the canopy of date palm trees is key to reducing the energy of the tsunami. The reduction in the maximum depth of flow behind the forest increased with the height of the tsunami when the forest was longer than 120 m. The largest reductions obtained in the depth and velocity of flow behind the forest were 37% and 40%, respectively, when the forest was 180 m long and the tsunami wave was 7 m high. The results suggest that a date palm forest with a length of at least 150 m on flat ground can mitigate tsunamis in the Middle East.
Keyword ：
Date palm Date palm Experiment Experiment Forest Forest Middle East Middle East Mitigation Mitigation Tsunami Tsunami
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| GB/T 7714 | Nandasena, N. A. K. , Chen, Cheng , Hasan, Dania et al. Experimental investigation into the usage of date palm forests to mitigate tsunamis in the Middle East [J]. | LANDSCAPE AND ECOLOGICAL ENGINEERING , 2024 , 20 (3) : 397-413 . |
| MLA | Nandasena, N. A. K. et al. "Experimental investigation into the usage of date palm forests to mitigate tsunamis in the Middle East" . | LANDSCAPE AND ECOLOGICAL ENGINEERING 20 . 3 (2024) : 397-413 . |
| APA | Nandasena, N. A. K. , Chen, Cheng , Hasan, Dania , Alsereidi, Maryam , Almansoori, Fatima , Gabir, Feruz . Experimental investigation into the usage of date palm forests to mitigate tsunamis in the Middle East . | LANDSCAPE AND ECOLOGICAL ENGINEERING , 2024 , 20 (3) , 397-413 . |
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Since the number of bridges in China keeps increasing and some bridges with the damage problems brought by the age of are gradually taken into account, thus the health monitoring of bridges becomes much more important. Based on the research of China's intelligent sensing materials in the past decade, this paper summarizes the function of common sensing devices in crack pattern recognition, rust expansion monitoring, damage identification, curing shrinkage strain, and fatigue damage monitoring, and clarifies the feasibility of new monitoring technologies in practical engineering. It is also cited that the advantages and working principles of two data treatment, wavelet analysis and Long-term and short-term memory neural network, applied in the field of bridge health monitoring. The results show that intelligent sensing material and signal analysis technology has a wide application prospect in the future bridge surveillance work because of its good working performance. This paper can provide some reference for the application of intelligent sensing and signal analysis technology in the information of bridge health monitoring. © 2024 SPIE.
Keyword ：
Brain Brain Damage detection Damage detection Data handling Data handling Fiber Bragg gratings Fiber Bragg gratings Pattern recognition Pattern recognition Signal analysis Signal analysis Structural health monitoring Structural health monitoring Wavelet analysis Wavelet analysis
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| GB/T 7714 | Chen, Xiaonian , Chen, Cheng . Monitoring Technology and Data Processing Methods for Chinese Bridges Research Progress [C] . 2024 . |
| MLA | Chen, Xiaonian et al. "Monitoring Technology and Data Processing Methods for Chinese Bridges Research Progress" . (2024) . |
| APA | Chen, Xiaonian , Chen, Cheng . Monitoring Technology and Data Processing Methods for Chinese Bridges Research Progress . (2024) . |
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