A5011478458- Geological and Geochemical Analysis
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Hydrocarbon exploration and reservoir analysis
- Geomagnetism and Paleomagnetism Studies
- Geological and Geophysical Studies
- Geophysics and Gravity Measurements
- Geological Studies and Exploration
- Photopolymerization techniques and applications
- Epoxy Resin Curing Processes
- Flame retardant materials and properties
- Geotechnical Engineering and Analysis
- Rock Mechanics and Modeling
- Dam Engineering and Safety
University of Chinese Academy of Sciences
2022-2025
Institute of Rock and Soil Mechanics
2022
Abstract In this study, we designed and synthesized a phosphorus flame retardant based on DOPO (9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide) obtained modified (MDOPO). We investigated how the amount of MDOPO affects retardancy mechanical properties epoxy resin characterized material’s microstructure using SEM. The results demonstrated that MDOPO/E44 composites increased with increasing content. When 11.43 g was added to 100 E44 matrix, oxygen index by 24.7%. gradually further...
Ultra-low velocity zones (ULVZs) above the core-mantle boundary (CMB) are observed structures that may be related to liquid outer-core. As "thin patches" of dramatically low seismic-wave velocity, they occasionally found near base mantle plumes or in/near high speed regions CMB. The causes their morphology and geodynamics remain unclear, simulation high-density melts diverge from observations. We introduce a two-dimensional time-dependent Stokes two-phase flow (with melt migration) numerical...
The elastic modulus of rock is an important parameter in engineering, but the common methods based on laboratory tests are laborious, especially for obtaining probability distribution that required reliability-based design. Many scholars have studied regression model between and P-wave velocity; however, most previous reports ignored characterization variability uncertainty. To address this problem, a large number granite samples collected from Yingliangbao hydropower station (YLB),...
Oceanic-plates vertical tearing is seismically-identified in the present-day Earth. This type of plate frequently reported horizontally-oblique subduction zones where transform-faulted oceanic plates are subducting (or subducted). However, mechanisms behind slab still poorly understood, thus we utilize 3D time-dependent Stokes’ flow thermo-mechanical models to further study this problem. We find that (i) age offset transform fault and (ii) horizontal obliqueness fundamentally control...
Oceanic-plates vertical tearing is seismically-identified in the present-day Earth. This type of plate frequently reported horizontally-oblique subduction zones where transform-faulted oceanic plates are subducting (or subducted). However, mechanisms behind slab still poorly understood, thus we utilize 3D time-dependent Stokes’ flow thermo-mechanical models to further study this problem. We find that (i) age offset transform fault and (ii) horizontal obliqueness fundamentally control...
Abstract Oceanic‐plates vertical tearing is seismically identified in the present‐day Earth. This type of plate frequently reported horizontally‐oblique subduction zones where transform‐faulted oceanic plates are subducting (or subducted). However, mechanisms behind slab still poorly understood, thus we utilize 3D time‐dependent Stokes' flow thermo‐mechanical numerical models to further study this problem. We find that (a) age offset transform fault and (b) horizontal obliqueness...
Ultra-low velocity zones (ULVZs) above the Core-Mantle Boundary (CMB) are significant structures probably connecting lowermost mantle and outer core. As “thin patches” of dramatically low seismic-wave velocity, they occasionally found near base plumes in-or-near high speed regions CMB. The causes their morphology-distribution geodynamics remain unclear, simulation results high-density melt diverge from seismic-observations speculation (~+10%). We introduce a 2D time-dependent Stokes’...
Ultra-low velocity zones (ULVZs) above the core-mantle boundary (CMB) are significant structures that connect lowermost mantle and outer core. As “thin patches” of dramatically low seismic-wave velocity, they occasionally found near base plumes in-or-near high speed regions CMB. The causes their morphological distribution geodynamics remain unclear, simulation results high-density melts diverge from seismic observations. We introduced a two-dimensional time-dependent Stokes two-phase flow...
Oceanic slab vertical tearing is prevalently identified in the present Earth. More general background for transform-fault subduction during horizontally-oblique tectonic convergence. However, its geodynamic mechanisms are poorly understood to date. This work introduces a full numerical 3-D time-dependent Stokes’ thermo-mechanical flow model investigate characteristics and mechanism of active transform-faulted oceanic oblique subduction. We find that (i) ages-offset (ii) horizontal...