Results 21 to 30 of about 1,275 (137)

Laboratory Experiments on the Influence of the Wave Spectrum Enhancement Factor on a Rubble Mound Breakwater

Journal of Marine Science and Engineering, 2022
This paper experimentally explored the influence of the wave spectrum shape variation on breakwater design. The energy spectrum function generally considered for the design of coastal structures is the JONSWAP spectrum.
Hosny Bakali, Ismail Aouiche, Najat Serhir, Youssef Zahir, El hassan Ziane, Abderrazak Harti, Zakariae Zerhouni, Edward Anthony   +7 more
doaj   +1 more source

The 2025 Kamchatka Earthquake and Tsunami: Cascading Impacts and Risks to Japan

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT On July 29th, 2025, a large earthquake (Mw 8.8) occurred near the Kamchatka Peninsula. This event caused a tsunami that reached Japan's Pacific coast, even though the source was far away. In this study, we analyze the characteristics of earthquakes and tsunamis and discuss how they relate to the recurrence possibility and risk in Japan.
Ampan Laosunthara, An‐Chi Cheng, Yo Fukushima, Yoshinori Shigihara, Natt Leelawat, Anawat Suppasri, Fumihiko Imamura   +6 more
wiley   +1 more source

Uneven Impacts of Seawall Heightening on Tsunami Risk Reduction under Rising Sea Levels: Probabilistic Scenarios from the Japan Trench

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Disasters exacerbated by climate change have prompted adaptation measures, including seawall heightening, which is an effective approach to protecting coastal areas. However, the combined effect of rising sea levels and tsunamis can create a compound coastal hazard, in which long‐term sea level rise amplifies the impact of tsunamis.
Yushi Miki, Anawat Suppasri, Constance Ting Chua, An‐Chi Cheng, Tomoya Iwasaki, Yugo Shinozuka, Takafumi Ogawa, Fumihiko Imamura   +7 more
wiley   +1 more source

Similarity optimization of reduced-scale model tests on break of homogeneous clay dam due to overtopping

Yantu gongcheng xuebao, 2023
The reduced-scaled physical model test under the conventional gravity of 1g is an important and common method for analyzing failure of embankment dams due to overtopping.
LIN Hai 1, 2, NIE Teng 1, ZHOU Chuangbing 1, 2
doaj   +1 more source

Hydraulic reconstruction of catastrophic drainage from the Late Glacial, Lake Fraser, British Columbia, Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Glacial Lake Fraser, which formed in British Columbia against the retreating Cordilleran Ice Sheet, stored ~520 km3 of water before its near‐total drainage into the Salish Sea during an outburst flood event. Despite the impact of the outburst flood on sediment transport and landscape evolution in the Fraser River valley, its peak discharge and
Sean M. Loeffler, John J. Clague, Brendan G. N. Miller, Sophie L. Norris   +3 more
wiley   +1 more source

Dynamical Precursors and Temporal Persistence of Environmental Forcing in Wave Overtopping at a Field-Scale Breakwater

Journal of Marine Science and Engineering
Wave overtopping is one of the most complex coastal hazards to characterize in field conditions due to its high non-linearity and the interaction between unsteady hydrodynamics and wave–structure processes.
Khawar Rehman, Wan Hee Cho, Hwa-Young Lee, Gwang-Ho Seo, Jong Yoon Mun   +4 more
doaj   +1 more source

Centrifugal model tests and numerical modeling on overtopping-induced breach processes of landslide dams

Frontiers in Earth Science, 2023
This study used the 400 g-ton geotechnical centrifuge model test system at the Nanjing Hydraulic Research Institute (NHRI) to investigate the breach evolution characteristics and hydrograph process of overtopping-induced breaching of landslide dams.
Lucheng Zhang, Qiming Zhong, Qiming Zhong, Meng Yang, Ming Peng, Jiaxin Liu, Shengyao Mei, Zhikun Yan, Yibo Shan   +8 more
doaj   +1 more source

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

Near Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball, Karl E. Butler, Jonathan E. Chambers, Paul B. Wilkinson, Andrew Binley   +4 more
wiley   +1 more source

Uncertainty Analysis and Overtopping Risk Evaluation of Maroon Dam withMonte Carlo and Latin Hypercube Methods

مجله آب و خاک, 2016
Introduction: The greatest part of constructed dams belongs to embankment dams and there are many examples of their failures throughout history. About one-third of the world’s dam failures have been caused by flood overtopping, which indicates that flood
J. M. Vali Samani, H. Radmehr, M. Delavar   +2 more
doaj   +1 more source

Parametric Design and Numerical Investigation of Hydrodynamic Characteristics of a New Type of Armour Block TB-CUBE Based on SPH Method

Journal of Marine Science and Engineering, 2022
Based on the open-source code DualSPHysics, a numerical model was conducted to simulate the regular wave transformation on the slope breakwater with artificial block, and the simulation results were verified according to the measured data from the ...
Cheng Peng, Hao Wang, Huaqing Zhang, Hanbao Chen   +3 more
doaj   +1 more source