Simulation of the mechanical behavior of inclined jointed rock masses during tunnel construction using Discontinuous Deformation Analysis (DDA)

2004 ◽  
Vol 41 (5) ◽  
pp. 731-743 ◽  
Author(s):  
Jian-Hong Wu ◽  
Y. Ohnishi ◽  
S. Nishiyama
Keyword(s):  
Mechanical Behavior ◽  
Jointed Rock ◽  
Discontinuous Deformation Analysis ◽  
Deformation Analysis ◽  
Tunnel Construction ◽  
Rock Masses ◽  
Jointed Rock Masses ◽  
Discontinuous Deformation

USE OF DISCONTINUOUS DEFORMATION ANALYSIS TO EVALUATE THE DYNAMIC BEHAVIOR OF SUBMARINE TSUNAMI-GENERATING LANDSLIDES IN THE MARMARA SEA

2011 ◽  
Vol 08 (02) ◽  
pp. 151-170 ◽  
Author(s):  
GUI CHEN MA ◽  
FUMIO KANEKO ◽  
SHINZABURO HORI ◽  
MAKOTO NEMOTO
Keyword(s):  
Energy Loss ◽  
Dynamic Behavior ◽  
Jointed Rock ◽  
Slope Instability ◽  
Discontinuous Deformation Analysis ◽  
Viscous Force ◽  
Deformation Analysis ◽  
Marmara Sea ◽  
Submarine Landslides ◽  
Discontinuous Deformation

This study assessed the relevance of numerical modeling with respect to the mechanical properties of specific rock and investigated the applicability of submarine landslide simulation using discontinuous deformation analysis (DDA). To predict the dynamic behavior of submarine landslides, we developed a way to model a jointed rock mass for the evaluation of rock slope instability and an original DDA approach using an energy loss model that incorporates energy loss caused by collision between blocks and seawater resistance as a viscous force. We applied the developed model to estimate the dynamic behavior of actual submarine landslides. The simulations assessed seawater resistance and energy loss due to collision between blocks, reproducing past events and suggesting the behavior of vulnerable slopes. The results demonstrate that the model can clarify the energy loss caused by slope absorbability and seawater resistance, and that the improved DDA is very useful for submarine land analysis.

A numerical study on mechanical behavior of jointed rock masses after tunnel excavation

2020 ◽  
Vol 13 (11) ◽  
Author(s):  
Wanzhi Zhang ◽  
Bangshu Xu ◽  
Jie Mei ◽  
Guangyao Yue ◽  
Weihang Shi
Keyword(s):  
Mechanical Behavior ◽  
Numerical Study ◽  
Jointed Rock ◽  
Rock Masses ◽  
Tunnel Excavation ◽  
Jointed Rock Masses

scholarly journals The Effect of Joint Dip Angle on the Mechanical Behavior of Infilled Jointed Rock Masses under Uniaxial and Biaxial Compressions

Processes ◽  
2018 ◽  
Vol 6 (5) ◽  
pp. 49 ◽  
Author(s):  
Guansheng Han ◽  
Hongwen Jing ◽  
Yujing Jiang ◽  
Richeng Liu ◽  
Haijian Su ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Jointed Rock ◽  
Rock Masses ◽  
Jointed Rock Masses ◽  
Dip Angle
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