scholarly journals Simulation of rock fall and rock mass failure by distinct element method based on rational contact detection scheme

2010 ◽  
Vol 47 (3) ◽  
pp. 147-154
Author(s):  
Mitsuo NAKAGAWA ◽  
Masao YAMADA ◽  
Noriyuki NAKATANI ◽  
Tomoaki CHIKASHIGE
Keyword(s):  
Rock Mass ◽  
Distinct Element ◽  
Distinct Element Method ◽  
Rock Fall ◽  
Contact Detection ◽  
Detection Scheme ◽  
Mass Failure ◽  
Rock Mass Failure ◽  
Element Method

scholarly journals Analysis of Impact Response of Sand Cushion for Rockfall by Distinct Element Method

2011 ◽  
Vol 82 ◽  
pp. 92-99 ◽  
Author(s):  
Takashi Watanabe ◽  
Hiroshi Masuya ◽  
Akita Satoh ◽  
Sachio Nakamura
Keyword(s):  
Distinct Element ◽  
Distinct Element Method ◽  
Point Of View ◽  
The Body ◽  
Rock Fall ◽  
Impact Behavior ◽  
The Impact ◽  
Impact Experiments ◽  
Sand Cushion ◽  
Element Method

In order to know efficiently the impact behavior of the actual size sand cushion under rock fall, to achieve a lot of impact experiments under various conditions or to analyze those phenomena by use of reliable accurate methods is generally required. However, there is difficulty in many cases to achieve experiments because of financial reason. Therefore, the analysis method to reproduce full-scale impact behavior is indispensable. From this point of view, we have developed Distinct Element Method. The method to model the body to collide like a rock fall by an assembly of many small elements and the method to present a sand cushion as an assembly of many elements which have different size with randomness were shown. The validity of this method was shown by the comparison with experimental results.

scholarly journals General report on rock mass failure and rock fall problems.

Landslides ◽  
2002 ◽  
Vol 39 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Yuzo OHNISHI ◽  
Satoshi NISHIYAMA
Keyword(s):  
Rock Mass ◽  
Rock Fall ◽  
General Report ◽  
Mass Failure ◽  
Rock Mass Failure
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