A5102001587- Rock Mechanics and Modeling
- Landslides and related hazards
- Geotechnical and Geomechanical Engineering
- Geomechanics and Mining Engineering
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Underground Structures
- Tunneling and Rock Mechanics
- Drilling and Well Engineering
- Dam Engineering and Safety
- Microbial Applications in Construction Materials
- Advanced Fiber Optic Sensors
- Corrosion Behavior and Inhibition
- Aluminum Alloys Composites Properties
- Soil, Finite Element Methods
- Marine Sponges and Natural Products
- Bauxite Residue and Utilization
- High-Velocity Impact and Material Behavior
- Electrokinetic Soil Remediation Techniques
- Geoscience and Mining Technology
- Mining and Gasification Technologies
Chongqing University of Science and Technology
2015-2023
Xi'an Shiyou University
2021
Chongqing University
2021
Xihua University
2009
To investigate the micro-scale mechanism of strength deterioration under different times dry-wet cycles, laboratory tests physical properties, triaxial compression, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were conducted on red sandstone reservoir bank slopes. The research results showed that when 5th cycle ended, dry mass peak started to rapidly decline, while porosity saturated increased rapidly. In general, all these behaviours become relatively stable number cycles...
Mechanical properties of undisturbed root-soil composites were investigated through direct shear tests under different cementation concentrations by microbially induced carbonate precipitation (MICP). The results show that MICP has a significant strengthening effect on the composite, and maximum strength increases about 160% after grouting. with increase in calcium chloride concentration, most when concentration is 0.75M. Calcium formed treatment cementitious properties, which cohesion...
Extensive bedding planes have a great influence on the mechanical properties of coal. In order to study mechanism effects angles and failure characteristics coal in Shanxi Baode mine, uniaxial triaxial compression tests numerical simulations were conducted. The strength deterioration microstructural changes samples then analyzed with discrete element method (DEM) simulation. experimental results reveal that power function criterion has good applicability this It was also found peak at...
In order to investigate the mechanical properties of lime mudstone, conventional triaxial compression tests under different confining pressures (0, 5, 15 and 20 MPa) are performed on mudstone samples. The test results show that, from overall perspective variation law, axial peak stress, strain elastic modulus tend gradually increase with increasing pressure. range tested pressure, variations in stress pressure can be described linear functions; while reflected a power function. To describe...
In order to study the mechanical properties of rock salt, triaxial compression tests under different temperatures and confining pressure are carried out on salt specimens, influence temperature was studied. The results show that has a deteriorative effect salt. With increase temperature, peak stress decreases visibly; plastic deformation characteristics become much obvious; internal friction angle increases; while cohesion strength decreases. pressure, strain will same temperature. Based...
A graduated uniaxial direct tensile creep test for fine sandstone is conducted by adopting a custom-designed device rock.The experiment shows that the of has similar curve patterns to those compression creep, while ratios strain total obtained in tests are substantially higher than tests, which indicates ability rock process process.Based on elastic modulus approximately linear portion isochronous stress-strain curves time dependence elasticity Kelvin model evaluated, and revised generalized...
This study on right side roadbed slope (No.2 Zhu-gen mountain) project relies K33+020~K33+240 of Xiao-Long highway in mountain areas eastern Yunnan province. Research focus cataclastic rock stability reconstruction and strength degradation saturated rock. With sandstone sampling by ultrasonic-rebound combined method, mechanical deformation behavior natural samples were tested the dynamic tri-axial instrument MTS815.04. On factors experimented data, field data condition, numerical simulation...
In order to investigate the influence of water content on damage and degradation characteristics Hutubi sandstone, different saturation experiments laboratory mechanical were carried out sandstone. The experimental results show that under uniaxial triaxial conditions, with increase in content, axial, lateral, volume deformations gradually increase, deformation shows obvious dilatancy characteristics. deviator stress elasticity modulus sandstone decreased exponentially increasing content....
Abstract The bank slope of the Three Gorges Reservoir is affected by seasonal water level fluctuations, which leads to deterioration rock mass, resulting in a series geological disasters such as landslides and mudslides. Therefore, order thoroughly understand degradation mechanism mechanical characteristics under wetting-drying cycles, uniaxial compression tests triaxial were used reveal relationship between cycles. Uniaxial results show that with number cycles increases, decreasing trend,...