scholarly journals Analysis of Slope Stability and Disaster Law under Heavy Rainfall

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Pengfei Guo ◽  
Yadi Yuan ◽  
Yanyan Peng ◽  
Haijiag Zhang ◽  
Yongxu Zhao
Keyword(s):  
Numerical Simulation ◽  
Slope Stability ◽  
Physical Model ◽  
Model Experiment ◽  
Heavy Rainfall ◽  
Transportation Network ◽  
Stress Raiser ◽  
Physical Model Experiment ◽  
Analysis Laboratory ◽  
Simulation Results

Based on this, the slope stability and disaster law under the condition of heavy rainfall are studied. With the slope of Shangge Village as the background, the slope stability under the condition of heavy rainfall is deeply studied through theoretical analysis, laboratory physical model experiment, and numerical simulation. Results showed that due to the heavy rainfall within 2 h, the deformation of the slope is not obvious in the rain 2 h~7 h period, first of all in the position of slope toe of slope stress raiser; As the rainfall continued, the infiltration of rainwater led to weakening of the rock mass strength, and the cracks in the slope fracture zone further expanded and extended to the top of the slope. After 7 hours of rainfall, the slope formed a sliding surface. The physical model experiment and the numerical simulation results are in good agreement, which can provide the basis for slope reinforcement under heavy rainfall conditions and have important scientific significance and social value for the reasonable site selection of housing construction, transportation network, and disaster prevention and mitigation in coastal areas.

Application of the Flow Simulation for the Optimization Analysis of SCR DeNOx System of Coal Power Plant

2012 ◽  
Vol 610-613 ◽  
pp. 1533-1539 ◽  
Author(s):  
Xing Lian Ye ◽  
Ding Yang
Keyword(s):  
Numerical Simulation ◽  
Power Plant ◽  
Flow Field ◽  
Physical Model ◽  
Model Experiment ◽  
Optimization Design ◽  
Coal Power Plant ◽  
Physical Model Experiment ◽  
Coal Power ◽  
Scr System

Based on the Selective Catalystic Reduction (SCR) DeNOx project for 2×330MW-unit in a coal power plant, the gas flow field in SCR system has been optimized by numerical simulation. The optimized simulation results were compared with the physical model experiment, and the fly ash sedimentation in the duct was also investigated. Correlation analysis of the results shows that, the flow field predicted by numerical simulation matches very well with that of physical model experiment. Numerical simulation can not only predict but also improve the flow field in SCR system. The combination of simulation and physical model experiment provides a reliable basis for flow field optimization design in SCR system.

Wide angle reflections in OBC seismic physical model experiment

2012 ◽  
Vol 9 (2) ◽  
pp. 207-212 ◽  
Author(s):  
Zheng-Hua Yang ◽  
Yi-Jian Huang ◽  
Yong-Xin Wu
Keyword(s):  
Physical Model ◽  
Model Experiment ◽  
Wide Angle ◽  
Physical Model Experiment

The effect of fold on horizontal resolution in a physical model experiment

1996 ◽  
Author(s):  
Steven A. Markley ◽  
Daniel A. Ebrom ◽  
Karuthethil K. Sekharan ◽  
John A. McDonald
Keyword(s):  
Physical Model ◽  
Model Experiment ◽  
Horizontal Resolution ◽  
Physical Model Experiment

Study on Numerical Simulation of Fire and Evacuation for a Supermarket

2015 ◽  
Vol 744-746 ◽  
pp. 1736-1740 ◽  
Author(s):  
Si Hui Dong ◽  
Min Li ◽  
Yu Han Lin
Keyword(s):  
Numerical Simulation ◽  
Physical Model ◽  
Development Process ◽  
Fire Danger ◽  
Actual Situation ◽  
Study Results ◽  
Simulation Results ◽  
Fire Scene ◽  
Safety Evacuation

3D physical model of a supermarket was constructed with Pyrosim software, and the fire scene was set according to the actual situation. The fire development process and personnel evacuation process were simulated with FDS. The fire danger time of the fire scene was analyzed according to the smoke temperature and visibility of different time. The personnel evacuation process to the supermarket was simulated with the evacuation software Evac, and the required safety egress time was calculated. By comparing the fire danger time and the required safety egress time, the conclusion was drawn that the supermarket can not meet the requirement for safety evacuation. After changing the conditions for safety evacuation, the required safety egress time was simulated again. And the simulation results showed that the changed evaluation conditions can meet the requirement for safety evacuation. The study results provide a basis to improve the safety evacuation conditions of the supermarket.

Detection of Insulation Defects in Automated In-Process Testing of Electric Wire during its Extrusion

2019 ◽  
Vol 942 ◽  
pp. 141-150
Author(s):  
Alexander Goldshtein ◽  
Galina Vavilova ◽  
Alexander Rumkin ◽  
Oldrich Starý
Keyword(s):  
Numerical Simulation ◽  
Mathematical Simulation ◽  
Physical Model ◽  
The Core ◽  
Process Testing ◽  
Capacitive Method ◽  
Simulation Results ◽  
Local Defects ◽  
Air Cavities ◽  
The Impact

The paper describes the electro-capacitive method for monitoring wire capacitance, which is implemented using the CAP-10 device, employed for in-process testing of the single core electric wire capacitance. Focus is made on the operating principle of the CAP-10 device. The possibility of using the CAP-10 device for detecting local defects in wire insulation is proved. Insulation defects such as foreign inclusions in the form of copper shavings, air cavities inside insulation and those at the core–insulation boundary are modeled. The impact of the defect geometric parameters on the wire capacitance measured during in-process testing is investigated through numerical simulation. Mathematical simulation results are validated through the physical model using the CAP-10 device.

Sizing and Scaling Requirements of a Large-Scale Physical Model for Code Validation

1989 ◽  
Vol 176 ◽  
Author(s):  
R. Khaleel ◽  
T. Legore
Keyword(s):  
Numerical Simulation ◽  
Physical Model ◽  
Large Scale ◽  
Porous Media Flow ◽  
Isolation System ◽  
The Media ◽  
Simulation Results ◽  
Long Term Behavior ◽  
Porous Medium Model

ABSTRACTScaling considerations relevant to porous media flow are reviewed. An analysis approach is presented for determining the sizing requirements of a large-scale, hydrology physical model. The physical model will be used to validate performance assessment codes that evaluate the long-term behavior of the repository isolation system. Numerical simulation results for sizing requirements are presented for a porous medium model in which the media properties are spatially uncorrelated.

Sign in / Sign up

Export Citation Format

Share Document