A5100425649- Landslides and related hazards
- Cryospheric studies and observations
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Remote Sensing and Land Use
- Hydrology and Sediment Transport Processes
- Soil and Unsaturated Flow
- Structural Health Monitoring Techniques
- Flood Risk Assessment and Management
- Geotechnical Engineering and Underground Structures
- Dam Engineering and Safety
- Geotechnical Engineering and Soil Mechanics
- Geophysics and Sensor Technology
- Environmental Changes in China
- Geotechnical Engineering and Analysis
- Geology and Paleoclimatology Research
- Geophysical Methods and Applications
- Tree Root and Stability Studies
- Geophysics and Gravity Measurements
- Aerodynamics and Acoustics in Jet Flows
- Fluid Dynamics and Turbulent Flows
- Climate change and permafrost
- Soil Geostatistics and Mapping
- Heat Transfer Mechanisms
- Soil erosion and sediment transport
- Advanced SAR Imaging Techniques
Nanjing Surveying and Mapping Research Institute (China)
2024
Ministry of Natural Resources
2024
China Geological Survey
2024
University of Hong Kong
2023
Institute of Earth Environment
2023
Chinese Academy of Sciences
2023
Beijing Institute of Technology
2023
Wuhan University
2019-2020
China University of Geosciences (Beijing)
2020
State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing
2019-2020
Due to the high safety, low cost, and environmental friendliness, water jet cleaning has become an ideal dredging method for rivers reservoirs dredging. To accurately investigate impact of impingement height on flow characteristics near wall, this study, in conjunction with comparisons experimental measurements, selected RNG (Renormalization Group) k-ε turbulence model LES (Large Eddy Simulation) analyze time-averaged transient fields submerged impinging jets angles θ = 90°, Re (Reynolds...
Early discovery and monitoring of the active deformation areas potential landslides are important for geohazard risk prevention. The objective study is to propose a one-step strategy automatically mapping from Sentinel-1 SAR dataset. First, we built generalized convolutional neural network (CNN) based on activity topographic characteristics. Second, conducted comparative analysis performance various multi-channel combiners detecting landslides. Third, verified transferability pretrained CNN...
A catastrophic landslide happened on 15 March 2019 in Xiangning County of Shanxi Province, causing 20 fatalities. Such an event makes us realize the significance loess slope instability detection. Therefore, it is essential to identify potential active landslides, monitor their displacements, and sort out dominant controlling factors. Synthetic Aperture Radar (SAR) Interferometry (InSAR) has been recognized as effective tool for geological hazard mapping with wide coverage high precision. In...
Uplift pressure is a critical vertical load on check dam foundations, playing pivotal role in structural design and stability. However, the characteristic of uplift remains complex not fully understood. In this study, specialized test device was designed; 36 tests were conducted to simulate closed dams under varying debris flow conditions. The formation evolution analyzed, along with influences bulk density fine particle contents. Results indicate peak head decreases increasing content,...
The ecological environment and the stability of mining area are destroyed by underground coal mining, which causes stratum roof to break rock movement be transferred face surface. To explore effect separation length () ratio upper lower layer thickness on fracture. In this paper, three-point bending tests carried out separated sandstone, acoustic emission (AE), digital image correlation (DIC), resistivity techniques used analyze strength, strain field, failure mode, fracture toughness,...
This paper retrieves the land surface temperature by using Mono-window Algorithm from 1989, 2001, 2007 Landsat TM remote sensing images in Harbin; analyzes distribution of and relationship between highway system urban heat island with topographic map 1990s. Some research as followed: is lower than surrounding area significantly. As a special corridor system, can separate slow down island. The effect railway Harbin no more 300m range; maximum cooling highways on 0.4°C, this little or...
Most slope collapse accidents are indicated by certain signs before their occurrence, and unnecessary losses can be avoided predicting deformation. However, the early warning of deformation often misjudged. It is necessary to establish a method determine appropriate in sliding thresholds. Here, better understand impact different scales on thresholds, we used Fisher optimal segmentation threshold model based speed acceleration at spatial scales. Our results that accuracy thresholds surface...
This paper proposed a safety assessment method for 500kV transmission tower under foundation erosion by river water based on level, geological survey, and finite element mechanical calculation. The displacement of the has been analyzed, main causes deformation have summarized. 1:1 refined model tower-line system established, stress different beam types analyzed. Results show that rapid drop level uneven slip are root inclination tower, beams near first transverse diaphragm C-leg bear greater stress.
The analysis of load-bearing ditch conduit is conducted using the discrete-continuous coupling method at macroscopic and mesoscopic scales. To better reflect uneven settlement between undisturbed soil filling soil, meshed by grids, modeled pellets. parameters used for particle flow simulation are given through calibration. results show that settlements soils reach maximum top conduit. Under ground load, has a horizontal expansion. process loading can be reconstructed observation force chain...