TY - GEN
T1 - The method of slope modelling for rockfall analysis using 3D DDA
AU - Zheng, L.
AU - Chen, G.
AU - Zen, K.
AU - Kasama, K.
PY - 2012
Y1 - 2012
N2 - Rockfalls are the most frequent major hazards in mountainous areas. For both hazard assessment and the design of countermeasures, realistic and accurate prediction of rockfalls is a major need. Thus, a modelling technique for the representation of geographical topography of slope, and shape of rock mass are required. This paper, suggests the application of polyhedron block for rock mass rather than commonly used particles. In this paper, firstly a 3D DDA program has been developed; and then a special element named Contact Face Element has been introduced into 3D DDA for effectively modelling with GIS support. The implement of Contact Face Element also improves the efficiency of both contact searching and solution process. An application of the modelling technique has been provided. It has been shown that the newly developed 3D DDA program is applicable to investigating the 3D shape effect of falling rock blocks and 3D topography effect of the slope.
AB - Rockfalls are the most frequent major hazards in mountainous areas. For both hazard assessment and the design of countermeasures, realistic and accurate prediction of rockfalls is a major need. Thus, a modelling technique for the representation of geographical topography of slope, and shape of rock mass are required. This paper, suggests the application of polyhedron block for rock mass rather than commonly used particles. In this paper, firstly a 3D DDA program has been developed; and then a special element named Contact Face Element has been introduced into 3D DDA for effectively modelling with GIS support. The implement of Contact Face Element also improves the efficiency of both contact searching and solution process. An application of the modelling technique has been provided. It has been shown that the newly developed 3D DDA program is applicable to investigating the 3D shape effect of falling rock blocks and 3D topography effect of the slope.
UR - http://www.scopus.com/inward/record.url?scp=84863144286&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863144286&partnerID=8YFLogxK
U2 - 10.1201/b11600-25
DO - 10.1201/b11600-25
M3 - Conference contribution
AN - SCOPUS:84863144286
SN - 9780415684040
T3 - Proceedings of the 10th International Conference on Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering, ICADD 10
SP - 189
EP - 196
BT - Proceedings of the 10th International Conference on Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering, ICADD 10
PB - CRC Press
T2 - 10th International Conference on Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering, ICADD 10
Y2 - 6 December 2011 through 8 December 2011
ER -