Study on the dynamic response of dip bedded rock slope using discontinuous deformation analysis (DDA) and shaking table tests

2020 ◽  
Author(s):  
Xixia Feng ◽  
Qinghui Jiang ◽  
Huichao Zhang ◽  
Xiaobo Zhang
Keyword(s):  
Dynamic Response ◽  
Rock Slope ◽  
Shaking Table ◽  
Discontinuous Deformation Analysis ◽  
Deformation Analysis ◽  
Shaking Table Tests ◽  
Discontinuous Deformation ◽  
Bedded Rock

TUNNEL BLASTING SIMULATIONS BY THE DISCONTINUOUS DEFORMATION ANALYSIS

2011 ◽  
Vol 08 (02) ◽  
pp. 277-292 ◽  
Author(s):  
ZHIYE ZHAO ◽  
YUN ZHANG ◽  
HUIRONG BAO
Keyword(s):  
Rock Mass ◽  
Dynamic Response ◽  
Influence Factors ◽  
Blast Loading ◽  
Rock Fragmentation ◽  
Discontinuous Deformation Analysis ◽  
Deformation Analysis ◽  
Tunnel Blasting ◽  
Discontinuous Deformation ◽  
Drill And Blast

Drill and blast method has been widely used as an effective excavation method for underground rock caverns or tunnels. To achieve a good blast design, an understanding on the rock dynamic response and rock fragmentation process is important. In this paper, numerical simulations are performed on a typical parallel hole cut blasting based on the discontinuous deformation analysis (DDA). The blast loading is obtained from the explicit FEM code LS-DYNA and the dynamic response of the rock mass is modeled by the DDA. Different influence factors on rock fragmentation under the blast loading are investigated, including the different delay time and various rock mass properties. Such a study will have potential applications for better drill and blast designs.

Discontinuous Deformation Analysis Visualization System Based on VTK

2013 ◽  
Vol 765-767 ◽  
pp. 542-546
Author(s):  
Yi Nuo Li ◽  
Jun Xiao ◽  
Zhen Ya Shen ◽  
Ying Wang
Keyword(s):  
Rock Slope ◽  
Discontinuous Deformation Analysis ◽  
Rock Slope Stability ◽  
Deformation Analysis ◽  
Graphic User Interface ◽  
Visualization System ◽  
Processing Program ◽  
Visualization Toolkit ◽  
Discontinuous Deformation ◽  
Underground Chamber

Discontinuous Deformation Analysis (DDA) is an emerging numerical simulation technology in rock engineering field, which could be used to analyze discontinuous blocks movement. DDA has been widely used in the areas ranging from rock slope stability analysis, underground chamber constructions to earth quake loading predictions. But so far, there is no pre and post processing program for DDA algorithm. In order to make DDA more effectively meet the needs of practical projects, and analyze the computing results more clearly, effectively and conveniently, in this paper, we use an open source VTK (Visualization Toolkit) system to visualize the results of DDA, design and implement a visualization system. We also developed friendly GUI (Graphic User Interface) based on QT. Finally, we demonstrate this tool with two project examples, which will prove that the visualization system is direct, convenient and easy to extension.

Dynamic response of a physical anti-dip rock slope model revealed by shaking table tests

2020 ◽  
Vol 277 ◽  
pp. 105772
Author(s):  
Chi-Chieh Chen ◽  
Hung-Hui Li ◽  
Ya-Chu Chiu ◽  
Ying-Kuan Tsai
Keyword(s):  
Dynamic Response ◽  
Rock Slope ◽  
Shaking Table ◽  
Shaking Table Tests
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