Comparison of 2D and 3D DDA in rocklall analysis

Guangqi Chen, Lu Zheng, Zaisen Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication46th US Rock Mechanics / Geomechanics Symposium 2012
Pages1428-1437
Number of pages10
Volume2
Publication statusPublished - Dec 1 2012
Event46th US Rock Mechanics / Geomechanics Symposium 2012 - Chicago, IL, United States
Duration: Jun 24 2012Jun 27 2012

Other

Other46th US Rock Mechanics / Geomechanics Symposium 2012
CountryUnited States
CityChicago, IL
Period6/24/126/27/12

Fingerprint

Digital differential analyzers
rockfall
trajectory
Rocks
Trajectories
hazard assessment
rock
Risk assessment
sliding
Hazards
risk assessment
simulation
analysis
comparison

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

Cite this

Chen, G., Zheng, L., & Jiang, Z. (2012). Comparison of 2D and 3D DDA in rocklall analysis. In 46th US Rock Mechanics / Geomechanics Symposium 2012 (Vol. 2, pp. 1428-1437)

Comparison of 2D and 3D DDA in rocklall analysis. / Chen, Guangqi; Zheng, Lu; Jiang, Zaisen.

46th US Rock Mechanics / Geomechanics Symposium 2012. Vol. 2 2012. p. 1428-1437.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chen, G, Zheng, L & Jiang, Z 2012, Comparison of 2D and 3D DDA in rocklall analysis. in 46th US Rock Mechanics / Geomechanics Symposium 2012. vol. 2, pp. 1428-1437, 46th US Rock Mechanics / Geomechanics Symposium 2012, Chicago, IL, United States, 6/24/12.
Chen G, Zheng L, Jiang Z. Comparison of 2D and 3D DDA in rocklall analysis. In 46th US Rock Mechanics / Geomechanics Symposium 2012. Vol. 2. 2012. p. 1428-1437
Chen, Guangqi ; Zheng, Lu ; Jiang, Zaisen. / Comparison of 2D and 3D DDA in rocklall analysis. 46th US Rock Mechanics / Geomechanics Symposium 2012. Vol. 2 2012. pp. 1428-1437
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