Comment on “Comparative study of the deformation modulus of rock mass” by Panthee et al. (2018) in the Bulletin of Engineering Geology and the Environment

2018 ◽  
Vol 77 (2) ◽  
pp. 761-762 ◽  
Author(s):  
Candan Gokceoglu
Keyword(s):  
Rock Mass ◽  
Comparative Study ◽  
Engineering Geology ◽  
Deformation Modulus

Comparative study of the deformation modulus of rock mass

2016 ◽  
Vol 77 (2) ◽  
pp. 751-760 ◽  
Author(s):  
Suman Panthee ◽  
P. K. Singh ◽  
Ashutosh Kainthola ◽  
Ratan Das ◽  
T. N. Singh
Keyword(s):  
Rock Mass ◽  
Comparative Study ◽  
Deformation Modulus

A comparative study of the determination of rock mass deformation modulus by using different empirical approaches

2012 ◽  
Vol 131-132 ◽  
pp. 19-28 ◽  
Author(s):  
C. Okay Aksoy ◽  
Melih Geniş ◽  
Gülsev Uyar Aldaş ◽  
Vehbi Özacar ◽  
Samet C. Özer ◽  
...  
Keyword(s):  
Rock Mass ◽  
Comparative Study ◽  
Deformation Modulus ◽  
Rock Mass Deformation ◽  
Empirical Approaches ◽  
Mass Deformation

scholarly journals Estimating the rock mass deformation modulus: A comparative study of empirical methods based on 48 rock mass scenarios

2021 ◽  
Vol 74 (1) ◽  
pp. 39-49
Author(s):  
Konstantinos Polemis Júnior ◽  
Francisco Chagas da Silva Filho ◽  
Francisco Pinheiro Lima-Filho
Keyword(s):  
Rock Mass ◽  
Comparative Study ◽  
Deformation Modulus ◽  
Empirical Methods ◽  
Rock Mass Deformation ◽  
Mass Deformation

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

Numerical Study on Influence of Joint Characters on Rock Mechanical Parameters

2011 ◽  
Vol 201-203 ◽  
pp. 2909-2912
Author(s):  
Yan Feng Feng ◽  
Tian Hong Yang ◽  
Hua Wei ◽  
Hua Guo Gao ◽  
Jiu Hong Wei
Keyword(s):  
Rock Mass ◽  
Compression Strength ◽  
Numerical Study ◽  
Process Analysis ◽  
Failure Process ◽  
Deformation Modulus ◽  
Rock Joints ◽  
Structured Surfaces ◽  
Trace Length ◽  
The Impact

Rock mass is the syntheses composed of kinds of structure and structured surfaces. The joint characters is influencing and controlling the rock mass strength, deformation characteristics and rock mass engineering instability failure in a great degree. Through using the RFPA2D software, which is a kind of material failure process analysis numerical methods based on finite element stress analysis and statistical damage theory, the uniaxial compression tests on numerical model are carried, the impact of the trace length of rock joints and the fault throws on rock mechanics parameters are studied. The results showed that with the gradual increase of trace length,compression strength decreased gradually and its rate of variation getting smaller and smaller, the deformation modulus decreased but the rate of variation larger and larger; with the fault throws increasing, the compression strength first increases and then decreases, when the fault throw is equal to the trace length, the deformation modulus is the largest. When the joint trace length is less than the fault throw, the rate of the deformation modulus is greater than that of trace length, but the deformation modulus was not of regular change.

The Luco dei Marsi deep-seated gravitational deformation: first evidence of a basal shear zone in the central Apennine mountain belt (Italy) 

2021 ◽  
Author(s):  
Emiliano Di Luzio ◽  
Marco Emanuele Discenza ◽  
Maria Luisa Putignano ◽  
Mariacarmela Minnillo ◽  
Diego Di Martire ◽  
...  
Keyword(s):  
Rock Mass ◽  
Shear Zone ◽  
Engineering Geology ◽  
Slope Deformation ◽  
European Alps ◽  
Structural Constraints ◽  
Normal Faulting ◽  
Central Apennines ◽  
Gravity Driven ◽  
Basal Shear

<p>The nature of the boundary between deforming rock masses and stable bedrock is a significant issue in the scientific debate on Deep-Seated Gravitational Slope Deformations (DSGSDs). In many DSGSDs the deforming masses move on a continuous sliding surface or thick basal shear zone (BSZ) [1-3]. This last feature is due to viscous and plastic deformations and was observed (or inferred) in many worldwide sites [4]. However, no clear evidence has been documented in the geological context of the Apennine belt, despite the several cases of DSGSDs documented in this region [5-6].</p><p>This work describes a peculiar case of a BSZ found in the central part of the Apennine belt and observed at the bottom of a DSGSD which affects the Meso-Cenozoic carbonate ridge overhanging the Luco dei Marsi village (Abruzzi region). The NNW-SSE oriented mountain range is a thrust-related Miocene anticline, edged on the east by an intramountain tectonic depression originated by Plio-Quaternary normal faulting. The BSZ appears on the field as a several meters-thick cataclastic breccia with fine matrix developed into Upper Cretaceous, biodetritic limestone and featuring diffuse rock damage.</p><p>The gravity-driven process was investigated through field survey, aerial photo interpretation and remote sensing (SAR interferometry) and framed into a geological model which was reconstructed also basing on geophysical evidence from the CROP 11 deep seismic profile. The effects on slope deformation determined by progressive displacements along normal faults and consequent unconfinement at the toe of the slope was analysed by a multiple-step numerical modelling constrained to physical and mechanical properties of rock mass.</p><p>The model results outline the tectonic control on DSGSD development at the anticline axial zone and confirm the gravitational origin of the rock mass damage within the BSZ. Gravity-driven deformations were coexistent with Quaternary tectonic processes and the westward (backward) migration of normal faulting from the basin margin to the inner zone of the deforming slope.</p><p><strong>References</strong></p><p>[1] Agliardi F., Crosta G.B., Zanchi A., (2001). Structural constraints on deep-seated slope deformation kinematics. Engineering Geology 59(1-2), 83-102. https://doi.org/10.1016/S0013-7952(00)00066-1.</p><p>[2] Madritsch H., Millen B.M.J., (2007). Hydrogeologic evidence for a continuous basal shear zone within a deep-seated gravitational slope deformation (Eastern Alps, Tyrol, Austria). Landslides 4(2), 149-162. https://doi.org/10.1007/s10346-006-0072-x.</p><p>[3] Zangerl C., Eberhardt E., Perzlmaier S., (2010). Kinematic behavior and velocity characteristics of a complex deep-seated crystalline rockslide system in relation to its interaction with a dam reservoir. Engineering Geology 112(1-4), 53-67. https://doi.org/10.1016/j.enggeo.2010.01.001.</p><p>[4] Crosta G.B., Frattini P., Agliardi F., (2013). Deep seated gravitational slope deformations in the European Alps. Tectonophysics 605, 13-33. https://doi.org/10.1016/j.tecto.2013.04.028.</p><p>[5] Discenza M.E., Esposito C., Martino S., Petitta M., Prestininzi A., Scarascia-Mugnozza G., (2011). The gravitational slope deformation of Mt. Rocchetta ridge (central Apennines, Italy): Geological-evolutionary model and numerical analysis. Bulletin of Engineering Geology and the Environment,70(4), 559-575. https://doi.org/10.1007/s10064-010-0342-7.</p><p>[6] Esposito C., Di Luzio E., Scarascia-Mugnozza G., Bianchi Fasani G., (2014). Mutual interactions between slope-scale gravitational processes and morpho-structural evolution of central Apennines (Italy): review of some selected case histories. Rendiconti Lincei. Scienze Fisiche e Naturali 25, 161-155. https://doi.org/10.1007/s12210-014-0348-3.</p>

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