TY - GEN
T1 - Modeling the deformational behavior of slate slope using discrete element method
AU - Cheng Hsien, Wu
AU - Meng Chia, Weng
AU - Chia-Ming, Lo
AU - Ting Feng, Chuang
PY - 2014/10
Y1 - 2014/10
N2 - According to the gravitational deformation of slate slope in the field, this study explored the influencing factors, including the slope angle, the foliation angle, and the material deterioration on the deformation characteristics. To simulate these phenomena, a series of physical model experiments with simplified environmental conditions were performed in the laboratory. Then, the discrete element software, PFC3D was used for simulations to further our understanding of deformation behavior in slate slopes under the long-term influence of gravity and material deterioration. According to the physical model tests and numerical simulations the results possesses the following characteristics:(1) Based on the model tests, two kinds of gravitational deformation of slate slope are identified, the first one is overturning destruction, it appears in the obsequent slope with high angle foliation. The other one is fold extrusion near the slope toe, it exhibits in the consequent slope with low angle foliations. It is not only influenced by gravitation but also by wet deterioration. (2) The results of physical model test provide the basic case for the verification of discrete element simulation. The simulated deformed patterns agree well with the actual deformation under different slope angles. Therefore, the model of discrete element method and associated parameters are verified, and they could be used for the subsequent analysis in the future.
AB - According to the gravitational deformation of slate slope in the field, this study explored the influencing factors, including the slope angle, the foliation angle, and the material deterioration on the deformation characteristics. To simulate these phenomena, a series of physical model experiments with simplified environmental conditions were performed in the laboratory. Then, the discrete element software, PFC3D was used for simulations to further our understanding of deformation behavior in slate slopes under the long-term influence of gravity and material deterioration. According to the physical model tests and numerical simulations the results possesses the following characteristics:(1) Based on the model tests, two kinds of gravitational deformation of slate slope are identified, the first one is overturning destruction, it appears in the obsequent slope with high angle foliation. The other one is fold extrusion near the slope toe, it exhibits in the consequent slope with low angle foliations. It is not only influenced by gravitation but also by wet deterioration. (2) The results of physical model test provide the basic case for the verification of discrete element simulation. The simulated deformed patterns agree well with the actual deformation under different slope angles. Therefore, the model of discrete element method and associated parameters are verified, and they could be used for the subsequent analysis in the future.
KW - Discrete element method
KW - Gravitational deformation
KW - Slate
UR - http://www.scopus.com/inward/record.url?scp=84962420708&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84962420708
T3 - ISRM International Symposium - 8th Asian Rock Mechanics Symposium, ARMS 2014
SP - 2466
EP - 2474
BT - ISRM International Symposium - 8th Asian Rock Mechanics Symposium, ARMS 2014
A2 - Kaneko, null
A2 - Kodama, null
A2 - Shimizu, null
PB - International Society for Rock Mechanics
T2 - 8th Asian Rock Mechanics Symposium, ARMS 2014
Y2 - 14 October 2014 through 16 October 2014
ER -