TY - GEN
T1 - Comparison of 2D and 3D DDA in rocklall analysis
AU - Chen, Guangqi
AU - Zheng, Lu
AU - Jiang, Zaisen
PY - 2012/12/1
Y1 - 2012/12/1
N2 - It is important to estimate the trajectory and motion behaviors of falling rocks in rockfall preventive measures such as rockfall hazard and risk assessment, design and performance evaluation of rockfall protection structures. The trajectories of falling rocks can be described as combinations of four types of motion: free fall, rolling, sliding and bouncing of a falling block. This study shows that these four basic types of motion can be simulated by DDA with high accuracy. A close comparison is carried out on motion behaviors between 2D and 3D DDA simulation. The merits and nota bene in the application of DDA are explored in this paper.
AB - It is important to estimate the trajectory and motion behaviors of falling rocks in rockfall preventive measures such as rockfall hazard and risk assessment, design and performance evaluation of rockfall protection structures. The trajectories of falling rocks can be described as combinations of four types of motion: free fall, rolling, sliding and bouncing of a falling block. This study shows that these four basic types of motion can be simulated by DDA with high accuracy. A close comparison is carried out on motion behaviors between 2D and 3D DDA simulation. The merits and nota bene in the application of DDA are explored in this paper.
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M3 - Conference contribution
AN - SCOPUS:84873157624
SN - 9781622765140
T3 - 46th US Rock Mechanics / Geomechanics Symposium 2012
SP - 1428
EP - 1437
BT - 46th US Rock Mechanics / Geomechanics Symposium 2012
T2 - 46th US Rock Mechanics / Geomechanics Symposium 2012
Y2 - 24 June 2012 through 27 June 2012
ER -