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Simulation of the Dangerous Area by PFC for the Lvchunba Crag Body
The crag body at the slope of the Lvchunba tunnel entrance is so large that it's necessary that the dangerous area and minor dangerous area are determined first in the design. Then, the proper and economical treatment is adopted. There is no division method of dangerous areas in the current codes and standards. So, field testing is adopted for inverse analysis of the numerical parameters. After that, the rock-fall motion path is simulated for all of the sections by particle flow code. Last, the dangerous and less dangerous areas are determined according to the influencing range and degree of rock-fall on all of the sections. Based on the particle flow code, the 2-D visual simulation of rock-fall motion path is realized, and the motion style of free fall, bouncing and rolling can be obtained. Then. it's feasible to analyze the dangerous area of crag body. Also, the motion velocity and displacement of the rock-fall at any time can be gained so that the reference is presented for calculating the energy or impact force of rock-fall at different positions. The simulation method of particle flow code can be used as a reference for the design of similar railway engineering.
Simulation of the Dangerous Area by PFC for the Lvchunba Crag Body
The crag body at the slope of the Lvchunba tunnel entrance is so large that it's necessary that the dangerous area and minor dangerous area are determined first in the design. Then, the proper and economical treatment is adopted. There is no division method of dangerous areas in the current codes and standards. So, field testing is adopted for inverse analysis of the numerical parameters. After that, the rock-fall motion path is simulated for all of the sections by particle flow code. Last, the dangerous and less dangerous areas are determined according to the influencing range and degree of rock-fall on all of the sections. Based on the particle flow code, the 2-D visual simulation of rock-fall motion path is realized, and the motion style of free fall, bouncing and rolling can be obtained. Then. it's feasible to analyze the dangerous area of crag body. Also, the motion velocity and displacement of the rock-fall at any time can be gained so that the reference is presented for calculating the energy or impact force of rock-fall at different positions. The simulation method of particle flow code can be used as a reference for the design of similar railway engineering.
Simulation of the Dangerous Area by PFC for the Lvchunba Crag Body
Xu, Jun (author) / Li, Anhong (author) / Wei, Yongxin (author) / Li, Chugen (author) / Liu, Yang (author)
Second International Conference on Geotechnical and Earthquake Engineering ; 2013 ; Chengdu, China
IACGE 2013 ; 371-379
2013-10-09
Conference paper
Electronic Resource
English
Simulation of the Dangerous Area by PFC for the Lvchunba Crag Body
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