Unified elasto‐plastic analysis of rock mass supported with fully grouted bolts for deep tunnels

2021 ◽  
Author(s):  
Lan Cui ◽  
Qian Sheng ◽  
You‐kou Dong ◽  
Ming‐xing Xie
Keyword(s):  
Rock Mass ◽  
Plastic Analysis ◽  
Grouted Bolts

Elasto-plastic analysis of a circular opening in strain-softening rock mass

2012 ◽  
Vol 50 ◽  
pp. 38-46 ◽  
Author(s):  
Qiang Zhang ◽  
Bin-Song Jiang ◽  
Shui-lin Wang ◽  
Xiu-run Ge ◽  
Hou-quan Zhang
Keyword(s):  
Rock Mass ◽  
Strain Softening ◽  
Circular Opening ◽  
Plastic Analysis

Elastic-Plastic Analysis of Peak Stress of Anchor in Circle Tunnel

2013 ◽  
Vol 353-356 ◽  
pp. 40-43
Author(s):  
Guo Jun Wu ◽  
Wei Zhong Chen ◽  
Dian Sen Yang
Keyword(s):  
Rock Mass ◽  
Stress Distribution ◽  
Plastic Zone ◽  
Peak Stress ◽  
Direct Proportion ◽  
Theoretical Derivation ◽  
Important Conclusion ◽  
Tunnel Excavation ◽  
Starting Point ◽  
Plastic Analysis

In this paper,the rule of direct proportion between anchor stress and creep strain of rock mass is taken as a starting point. After tunnel excavation,stress distribution of anchor in perfect circle tunnel is analyzed,then an important conclusion that the location is coincident between peak stress of anchor and plastic zone border of rock mass can be drawn in terms of theoretical derivation when rock mass is in plasticity.

scholarly journals MODELLING ROCK MASS IMPROVEMENT USING ROCK BOLTS

2017 ◽  
Vol 10 ◽  
pp. 43 ◽  
Author(s):  
Jan Pruška
Keyword(s):  
Rock Mass ◽  
Rock Bolt ◽  
Numerical Calculations ◽  
Underground Excavation ◽  
Rock Bolts ◽  
Fem Modelling ◽  
Excavation Stability ◽  
Bolt Reinforcement ◽  
Grouted Bolts ◽  
Underground Constructions

Anchor support currently represents a significant reinforcing technique in underground constructions. The principles of rock bolt reinforcement action are derived from various concepts of the underground excavation stability. In recent times, rock bolt design techniques have been complemented by numerical calculations procedures. The paper describes FEM modelling of a rock bolt system for mechanical and grouted bolts.

Experiment of an innovative nanoseismic monitoring applied to gravity-induced slope instabilities in a karstified rock mass

2015 ◽  
Vol 35 ◽  
pp. 132-135
Author(s):  
Matteo Fiorucci ◽  
Roberto Iannucci ◽  
Luca Lenti ◽  
Anotnella Paciello ◽  
Alberto Prestininzi ◽  
...  
Keyword(s):  
Rock Mass ◽  
Slope Instabilities
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