influences on strength of rock - mxhracingteam.nl
Influence of Asperity Morphology on Failure , The asperity morphology has profound influences on the failure characteristics and shear strength of rock joints To investigate these influences, degradation characteristics and mechanical properties were studied based on direct shear tests conducted on six groups of artificial rock joints with regular profil
Compressive strength of rocks - PetroWiki
Mechanical failure in rocks generally means either fracturing or permanent deformation as a result of compression. While many methods for calculating failure relationships exist, an initial measure of the compressive strength of reservoir rocks is still needed for use in those calculations.
influences on strength of rock - bergennoorwegen.nl
INFLUENCE OF INTACT ROCK STRENGTH ON ROCK MASS MECHANICAL PROPERTIES ABSTRACT The Synthetic Rock Mass (SRM) approach has the potential to capture the mechanical behavior of large rock samples. In order for the method to be used with confidence it is necessary to gain a good understanding of the factors that influences its analysis.
Influence of water content on the strength of rock ...
Hawkins and McConnell (1992) investigated the influence of the water content on the strength and deformability of 35 different British sandstones from 21 localities, ranging in age from Pre-Cambrian to Cretaceous. They published values for the measured uniaxial compressive strength, and for the tangent and secant deformation moduli, in the case of dry and fully saturated conditions.
Dynamic Shear Strength of Rock Joints and Its …
Shear strength deterioration of rock joints and its induced instability of key blocks subjected to dynamic disturbance constitute the mechanism of many geological disasters such as rockburst, landslide, and rockfall. In this study, the influence of dynamic disturbance on rock joints was quantified in the form of stress, of which model was established by quasistatic method. The dynamic shear ...
Influence of thermal treatment on mode I fracture ...
The three-point bending method was applied using cracks straight through semi-circular bending (CSTSCB) specimens that were fabricated according to International Society for Rock Mechanics (ISRM) standards. Three different rocks were used to measure the degree of influence of thermal treatment on fracture toughness in different rocks.
Influences On Strength Of Rock - schmierleitung.de
influences on strength of rock influences on strength of rock Shear strength of rock joints influenced by compacted infill Abstract Discontinuities such as fault planes joints and bedding planes in a rock mass may be filled Online Chat List the factors that influence the strength of a rock.
influences on strength of rock - etsiviaggiarecisl.it
Influence of Water Content on Mechanical Properties of ... There is no generally accepted explanation for the influence of water on rock strength, although several water weakening mechanisms on the strength of rock have been proposed, including pore pressure, stone and physical deterioration, capillary tension, etc.
STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1 ...
STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1. INTRODUCTION 2. TESTING OF INTACT ROCK FOR STRENGTH 2.1 Uniaxial Compression 2.2 Point Load Testing 2.3 Uniaxial Tension 2.4 Indirect Tension Tests 2.5 Shear Tests 2.6 Confined Compression Tests (Triaxial Tests) 2.7 Biaxial and Multiaxial Tests 2.8 Other Tests 3. PARAMETERS AFFECTING ROCK STRENGTH 4.
List the factors that influence the strength of a rock ...
There are four factors that influence the strength of a rock. These factors are, time, pressure, the type of rock. and temperature.
INFLUENCE OF INTACT ROCK STRENGTH ON ROCK MASS …
INFLUENCE OF INTACT ROCK STRENGTH ON ROCK MASS MECHANICAL PROPERTIES ABSTRACT The Synthetic Rock Mass (SRM) approach has the potential to capture the mechanical behavior of large rock samples. In order for the method to be used with confidence it is necessary to gain a good understanding of the factors that influences its analysis.
Influences On Strength Of Rock - logansainlez.be
Influence Of Rock Strength On The Propagation Of Slotted. When rock strength rises the propagation length velocity and duration of the primary crack and the concentration degree of effective stress in the slotted direction will all increase in the sandstone and granite but there is an opposite influence trend of rock strength in .
Water effects on rock strength and stiffness …
30-9-2015 · Reduction in strength and stiffness in rocks attributed to an increase in water content has been extensively researched on a large variety of rock types over the past decades. Due to the considerable variations of texture and lithology, the extent of water-weakening effect is highly varied among different rock types, spanning from nearly negligible in quartzite to 90 % of uniaxial ...
Influence of mineral compositions of rocks on mechanical ...
Influence of mineral compositions of rocks on mechanical properties Rui Pan, GuangQing Zhang * , ShiYuan Li, FengChen An, YueKun Xing, DeCai Xu, and RenYuan Xie
Influence of rock inhomogeneity on strength-size …
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Influence of Asperity Morphology on Failure ...
The asperity morphology has profound influences on the failure characteristics and shear strength of rock joints. To investigate these influences, degradation characteristics and mechanical properties were studied based on direct shear tests conducted on six groups of artificial rock joints with regular profiles.