Back-analysis of schistose rock mass strength parameters based on displacement monitoring data

2011 ◽  
pp. 345-350
Author(s):  
X Zhang ◽  
L Wong ◽  
S Wang
Keyword(s):  
Rock Mass ◽  
Back Analysis ◽  
Monitoring Data ◽  
Displacement Monitoring ◽  
Strength Parameters ◽  
Rock Mass Strength

Back-analysis of rock mass strength parameters using AE monitoring data

2007 ◽  
Vol 44 (4) ◽  
pp. 538-549 ◽  
Author(s):  
M. Cai ◽  
H. Morioka ◽  
P.K. Kaiser ◽  
Y. Tasaka ◽  
H. Kurose ◽  
...  
Keyword(s):  
Rock Mass ◽  
Back Analysis ◽  
Monitoring Data ◽  
Strength Parameters ◽  
Rock Mass Strength

scholarly journals A NEW BACK ANALYSIS METHOD FOR THE DETERMINATION OF ROCK MASS STRENGTH PARAMETERS BASED ON FIELD AE MONITORING DATA

2007 ◽  
Vol 63 (2) ◽  
pp. 389-402
Author(s):  
Hiroshi MORIOKA ◽  
Masayuki MINAMI ◽  
Toshio MAEJIMA ◽  
Yoshiaki TASAKA ◽  
Hiroki KUROSE ◽  
...  
Keyword(s):  
Rock Mass ◽  
Back Analysis ◽  
Monitoring Data ◽  
Analysis Method ◽  
Strength Parameters ◽  
Rock Mass Strength

scholarly journals Engineering geological behaviour of recent conglomerate deposits in dam foundation. The case of Agiokampos dam in Thessaly, Cen- tral Greece.

2013 ◽  
Vol 47 (4) ◽  
pp. 1759
Author(s):  
V. Marinos ◽  
S. Lazaridou ◽  
V. Perleros ◽  
K. Sotiropoulou
Keyword(s):  
Rock Mass ◽  
Bearing Capacity ◽  
Grout Curtain ◽  
Back Analysis ◽  
Internal Erosion ◽  
Diaphragm Wall ◽  
Strength Parameters ◽  
Dam Foundation ◽  
Surficial Zone ◽  
Cementing Material

A typical example of dam foundation on Neogenic conglomerate deposits is presented in this paper. The case of Agiokampos dam in east Thessaly in central Greece. The level of natural compactness and the nature of the cementing material are crucial elements for the strength, the bearing capacity and the permeability of these formations. These conglomerates of medium consistency, do not allow relying on traditional sampling and tests in the boreholes. Lugeon tests are meaningless and falling head tests are recommended. Back analysis on slopes is certainly a useful tool for approaching the strength parameters of the global rock mass. Thus it is understood that the engineering geological assessment before any testing and analysis is of prime importance.Due to the fine nature of the cement, permeability is generally low and no leakages are expected. However, an impermeable grout curtain must be created due to some higher values. Conglomerates are not easily groutable and a combination of a diaphragm wall is suggested. Finally, a carpet grouting is designed since the surficial zone is susceptible to internal erosion.

scholarly journals Determination of Shear Strength Parameters of Rock Mass using Back Analysis Methods and Comparison of Results with Empirical Methods

2017 ◽  
Vol 2 (11) ◽  
pp. 35
Author(s):  
Ehsan Bakhtiyari ◽  
Ali Almasi ◽  
Akbar Cheshomi ◽  
Jafar Hassanpour
Keyword(s):  
Shear Strength ◽  
Rock Mass ◽  
Limit Equilibrium ◽  
Back Analysis ◽  
Empirical Method ◽  
Crushed Rock ◽  
Empirical Methods ◽  
Shear Strength Parameters ◽  
Strength Parameters ◽  
Engineering Parameters

In this study, using the collected data from 4 slope failures in one of the central mines of Iran, the shear strength parameters of jointed and crushed rock masses using back analysis method are calculated and its results are compared with the values obtained from the empirical methods.  In this regard, firstly, the identification of failures is investigated and then geometrical and geological engineering parameters of slopes are collected and recorded by field survey. At this stage, using the Hoek-Brown criterion, shear strength parameters of the rock mass are estimated. Then, using appropriate software for slope stability analysis (limit equilibrium method software: SLIDE and numerical method software: FLAC), and assuming that safety factor is one, the shear strength parameters for sliding surfaces are determined. Finally, the results obtained from this analysis are compared with the results of the empirical methods and then suggestions are made to modify the input data of empirical method

Rock mass strength parameters mobilised in tunnels

1997 ◽  
Vol 12 (1) ◽  
pp. 47-54 ◽  
Author(s):  
B. Singh ◽  
M.N. Villadkar ◽  
N.K. Samadhiya ◽  
V.K. Mehrotra
Keyword(s):  
Rock Mass ◽  
Strength Parameters ◽  
Rock Mass Strength

DEFORMATION MODULUS AND STRENGTH PARAMETERS OF SABALOKA IGNEOUS ROCK MASS

2010 ◽  
Vol 33 (2) ◽  
pp. 153-158
Author(s):  
Mohamed Hassan Aboud ◽  
Mohamed Ahmad Osman
Keyword(s):  
Rock Mass ◽  
Igneous Rock ◽  
Deformation Modulus ◽  
Strength Parameters

ROCK MASS STRENGTH IN RELATION TO LANDSLIDE PROGRESSION

2018 ◽  
Author(s):  
Brooke M. Hornney ◽  
◽  
Marlene C. Villeneuve ◽  
Jonathan Davidson
Keyword(s):  
Rock Mass ◽  
Rock Mass Strength
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