A5027625707- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Geological and Geophysical Studies
- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Coastal and Marine Dynamics
- Landslides and related hazards
- Oceanographic and Atmospheric Processes
- CO2 Sequestration and Geologic Interactions
- Coastal wetland ecosystem dynamics
- Coastal and Marine Management
- Marine and coastal ecosystems
- Geotechnical Engineering and Soil Mechanics
- Climate change and permafrost
- Underwater Acoustics Research
- Electric and Hybrid Vehicle Technologies
- earthquake and tectonic studies
- Vehicle Dynamics and Control Systems
- Arctic and Antarctic ice dynamics
- Aeolian processes and effects
- Atmospheric and Environmental Gas Dynamics
- Offshore Engineering and Technologies
- Fluid Dynamics Simulations and Interactions
- Coal Properties and Utilization
- Environmental Changes in China
Ocean University of China
2016-2025
Qingdao National Laboratory for Marine Science and Technology
2017-2024
Shandong University of Science and Technology
2021
Qingdao Institute of Marine Geology
2019
Marine Biology Institute of Shandong Province
2019
Abstract With offshore resource exploration moving to the deep water, marine geohazards have been attracting attention from academic and industry. Research achievements of were reviewed in this paper. We analyzed discussed typical issues among geohazards, including coastal erosion, submarine slope failure, turbidity current special hazards induced by gas hydrate dissociation, terms their definition, distribution, characteristics case studies. Major international projects on headed United...
The destination of this study is to predict p-y curves monopiles for offshore wind turbines, and evaluate the feasibility machine learning methods analyzing pile-soil interaction. Data on circular subjected lateral static loads in saturated soils were collected filtered, considering both pile soil parameters form a comprehensive database. Machine algorithms, including Random Forest (RF), Support Vector Regression (SVR), Artificial Neural Networks (ANN), employed develop models predicting...
Submarine landslides can be tremendous in scale. They are one of the most important processes for global sediment fluxes and tsunami generation. However, studies prodigious submarine remain insufficient. In this review paper, we compile, summarize, reanalyze results previous studies. Based on reanalysis, discover giant Baiyun–Liwan slide Pearl River Mouth Basin, South China Sea. We describe three concurrent pieces evidence from ~23 Ma to 24 Ma, Oligocene–Miocene boundary, landslide:...
Nuclear magnetic resonance (NMR) measurement could provide information during the formation and dissociation of gas hydrate on pore structure properties which are great important to understand production behavior. In this study, in–situ NMR other well logging data achieved natural drilling program were used study size in Shenhu area, South China Sea by comparing transverse relaxation time (T2) distributions between zone upper water–saturated whose represent virgin status. Compared with those...
The impact of gas hydrate dissociation on submarine landslides has become an increasingly significant issue. However, previous models cannot interpret the newly discovered non-conformity between slide surface and base stability zone. Here, authors design experimental approach for visualising fluid migration during at atmospheric pressure. results identify lateral vertical pathways. Weak layers propagate nearly laterally beyond zone, which lengthens potential surface. Vertical pathways branch...
Gas hydrate dissociation may pose serious geohazards. The response of the seafloor to is important for geohazards, marine environments and global climate. We studied how affects underground temperature pressure lead deformation. Here, we designed a laboratory model experiment visualize fluid migration deformation during at atmospheric pressure. Our experiments show visible gas pipes, migratory pockets due explain newly discovered discordance between slide plane base stability zone. found...
Sediment suspended in the Yellow River delta provides significant physical, geological, and biogeochemical information. A time series of waves, currents, turbidities, temperatures, tide levels were measured over a 134-d period using submarine deployed tripod. static model (multiple linear regression) dynamic (superposed saw-tooth model) constructed to express interactions among wave height, current velocity, sediment concentration. The results documented high concentration this area with...
The occurrence of deep-sea geohazards is accompanied by dynamic changes in the physical properties seafloor sediments. Therefore, studying helpful for monitoring and early warnings geohazards. Existing property inversion methods have problems regarding poor accuracy limited application scope. To address these issues, we establish a deep learning model between resistivity sediment its density, water content, porosity. Compared with empirical formulas, has advantages more concentrated...
Coastal dunes record the evolutionary process of coastal dynamic geomorphological systems, and provide valuable information on climate change, sea level changes, environmental evolution. These are essential for global change research. In view changes in caused by extreme weather, erosion human activities, we propose a comprehensive evaluation method dune evolution, which monitors Haiyang Ten Thousand Meters Beach China from three perspectives: point, line, surface. This integrates LiDAR,...
Seabed fluid flow is a widespread and important natural phenomenon in marine environments, which involves complex multi-physics, multi-process multi-scale processes. The developments offshore geophysical technology have facilitated the discovery of emissions seabed fluids. For an overview on state-of-the-art research for obtaining perspective future China Seas, we reviewed data, reports, publications particularly that associated with cold seeps such as pockmarks, seeps, domes, mud volcanoes,...
Internal solitary waves (ISWs) exert a significant influence on the deep-sea floor, yet little research has been conducted their impact benthic organisms. The objective of this study was to investigate propagation characteristics ISWs Shenhu continental slope in northern South China Sea, as well mechanisms activity. In-situ observation performed at head Canyon (water depth 655m) determine physical and changes revealed that abundance density organisms were positively correlated with time...
Geological disasters of seabed instability are widely distributed in the Yellow River Delta, posing a serious threat to safety offshore oil platforms and submarine pipelines. Waves act as one main factors causing frequent occurrence instabilities region. In order explore soil failure mode law for pore pressure response subaqueous Delta under wave actions, in-lab flume tank experiments were conducted this paper. experiments, loads applied with duration 1 hour each day 7 consecutive days;...
The study of the physical and mechanical properties marine soil is great importance for geohazard prediction, submarine energy extraction, foundation design. In this study, a series basic geotechnical tests triaxial compression are performed on samples taken from Shenhu sea area in South China Sea (SCS). Physical properties, particularly normalized stress–strain behavior, investigated. microstructural mineralogical characterization carried out, through scanning electron microscopy (SEM),...