A5017575446- Grouting, Rheology, and Soil Mechanics
- Dam Engineering and Safety
- Landslides and related hazards
- Groundwater flow and contamination studies
- Geotechnical Engineering and Analysis
- Rock Mechanics and Modeling
- Karst Systems and Hydrogeology
- Geoscience and Mining Technology
- Polymer Nanocomposites and Properties
- Geotechnical Engineering and Soil Mechanics
- Hydraulic Fracturing and Reservoir Analysis
- Soil and Unsaturated Flow
- Fiber-reinforced polymer composites
- Polymer crystallization and properties
- Concrete Corrosion and Durability
- Hydrogen embrittlement and corrosion behaviors in metals
- Corrosion Behavior and Inhibition
- Concrete and Cement Materials Research
- Drilling and Well Engineering
Changsha University of Science and Technology
2020-2023
Eon Corporation (United States)
1997
The water gushing disaster in karst unfavorable geology has always been one of the difficult problems to be solved engineering field. In view such as with relatively high-water flow velocity and seepage at joints underground diaphragm wall which is concealed, a treatment method for disasters based on physical detection combined grouting proposed. main steps this are follows: Firstly, according analysis results geological investigations, by selecting appropriate means, accurately locate...
The detection of karst groundwater channels is great significance for the development underground cities and prevention control geological disasters. Aiming at characteristics high spatial variability channels, a new exploration model based on three-dimensional (3D) electrical method proposed. Combined with an urban project in Hunan Province, China, efficiency effect mode one-shaped layout arrangement conventional electric are compared analyzed. main process this as follows: Firstly,...
An important method to study the seepage characteristics of rock fractures is using nonlinear flow models. However, existing models are unable describe law water-soil particles mixture through rough soft because rheological properties fluid rarely considered. In this study, a novel model (WST model) for fracture silty mudstone under low water head was proposed based on local viscous pressure drops and drops. To verify accuracy model, saturated experiments were carried out five samples with...
Efficacy of added nano-CaCO₃ (NC) on engineering performances, including fluidity, initial setting time, bleeding rate and yield stress cement grouts was investigated in this study. Results showed that the fluidity for NC-cement (NCC) composite grout first decreased with increased NC content (i.e., ratio mass to mass) then slightly recovered as exceeded 2%. The time always reduced while content. microstructure NCC analyzed by means scanning electron microscopy (SEM) X-ray diffraction (XRD)....
To study the mechanical characteristics of disintegrated carbonaceous mudstone (DCM), consolidated drained triaxial tests were conducted on DCM with three degrees compaction (i.e., 90%, 93%, and 96%). Then, nonlinear constitutive model suitable for was established based test results using a logarithmic function. The stress‐strain analyzed. revealed that axial strain positively correlated deviatoric stress lateral strain. slopes stress‐axial curves decreased increase so did strain‐volumetric...