The Scale and Shape Effects on the Characteristic Strength of a Rock Mass: Application to Mining Pillars

2020 ◽  
pp. 295-302
Author(s):  
Youcef Cheikhaoui ◽  
Olivier Deck ◽  
Kamel Omraci ◽  
Hamza Cheniti
Keyword(s):  
Rock Mass ◽  
Characteristic Strength ◽  
Shape Effects

Multislice calculations for quasi-periodic and non-periodic objects

1990 ◽  
Vol 48 (4) ◽  
pp. 138-139
Author(s):  
R. Herrera ◽  
A. Gómez
Keyword(s):  
Electron Diffraction ◽  
Computer Simulations ◽  
Periodic Table ◽  
Amorphous Materials ◽  
Space Group ◽  
Essential Step ◽  
Shape Effects ◽  
Atomic Scattering ◽  
Diffraction Patterns ◽  
Periodic Continuation

Computer simulations of electron diffraction patterns and images are an essential step in the process of structure and/or defect elucidation. So far most programs are designed to deal specifically with crystals, requiring frequently the space group as imput parameter. In such programs the deviations from perfect periodicity are dealt with by means of “periodic continuation”.However, for many applications involving amorphous materials, quasiperiodic materials or simply crystals with defects (including finite shape effects) it is convenient to have an algorithm capable of handling non-periodicity. Our program “HeGo” is an implementation of the well known multislice equations in which no periodicity assumption is made whatsoever. The salient features of our implementation are: 1) We made Gaussian fits to the atomic scattering factors for electrons covering the whole periodic table and the ranges [0-2]Å−1 and [2-6]Å−1.

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
Sign in / Sign up

Export Citation Format

Share Document