influences on strength of rock
influences on strength of rock
Zhengzhou, Henan China
24 hours At your service

influences on strength of rock

Influence of water content on the strength of rock ...

30-03-2006  Water content is one of the most important factors influencing rock strength. Considerable research has been carried out to investigate rock strength under both dry and water saturated conditions. According to these results, the petrophysical properties of rocks decrease with increasing moisture and this can result in an increase in the mechanical compliance in some cases.

Influence of rock strength on the valley morphometry of ...

15-10-2009  Intact rock strength describes the virgin mechanical strength properties of the material but is largely irrelevant because rocks are typically modified by weathering, strain, or discontinuities. Discontinuities in the rock, weathering, surface roughness, microfractures, and joints will affect Schmidt hammer measurements by attenuating energy ( Williams and Robinson, 1983 , McCarroll, 1991 ,

Influence of rock percentage on strength and permeability ...

18-07-2020  Abstract. The strength and permeability of tailing-waste rock mixtures directly affect deposits’ stability for an alternative co-disposal technique. In the mixed co-disposal method, the void of the waste rock is filled with tailings, while the waste rock forms the particle skeleton. This method does not only improve deposits stability but also ...

The effect of water content on the strength of rock – The ...

23-12-2012  Strength and Failure in Intact Rocks The strength of rock is ability of rock to resist to maximum stress which the structure of rock is not deformed permanently. In naturally, the intact rock strength depends on the structure of crystalline formations in intact rock which the component of minerals are bonded together.

The influence of rock mass strength on glacial valley ...

M. S. Brook, J. M. Tippett, The influence of rock mass strength on the form and evolution of deglaciated valley slopes in the English Lake District, Scottish Journal of

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1 ...

In general, compared to intact rock, a rock mass has reduced tensile strength (almost zero), and reduced shear strength especi ally along discontinuity planes. Furthermore, if a rock mass is cut by directional joint sets , the rock mass strength is anisotropic. Rock mass strength is scale dependent and varies with the volume of rock under consideration.

Influence of grain size on strength of polymineralic ...

06-03-2021  The micro-cracking process taking place inside the numerical model during loading has a significant influence on rock strength. Our numerical results suggest that the strength is mainly controlled by the generation of grain boundary cracks, which in turn is related to the breakage of smooth-joint contacts along the grain interfaces.

what influences the strength of a rock? Yahoo Answers

19-12-2007  Aaron Rodgers named NFL's MVP for the 3rd time. Alex Rodriguez posts video amid alleged DM scandal. Supertall tower living can fall well short of luxury

THE UNIAXIAL COMPRESSIVE STRENGTH OF SOFT ROCK

size, saturation, and mineral content, influence the uniaxial compressive strength of soft rock materials. These factors can considerably reduce the strength of soft rock materials. The influence of moisture content on the behaviour of rocks has been investigated for more than thirty years [5, 6, 7, 8, 9]. It is frequently associated with

Influence of rock strength on the valley morphometry

We performed statistical analysis of Schmidt hammer rock strength as a function of lithology and aspect and of valley morphometry as a function of rock strength. Rock strength is significantly...

The effect of water content on the strength of rock – The ...

Water content is the most influence factor that effect on the strength of intact rocks. In general, the mechanical properties of intact rocks decrease when the moisture content increases. The strength of intact rock will decrease after only 1% of saturated of water.

The influence of rock mass strength on glacial valley ...

The erosional morphology in the vicinity of the Main Divide of the Southern Alps, and Fiordland, New Zealand, appears to be a product of the interaction between Alpine Fault‐induced tectonic processes, rock mass strength of the uplifted and eroded bedrock, and the processes acting to denude the developing mountain landscape.

Influence of rock mass strength on the erosion rate of ...

In this work we investigate the influence of rock mass strength on the retreat rate of alpine cliffs. To quantify rockwall competence we employed the Slope Mass Rating (SMR) geomechanical strength index, a metric that combines numerous factors contributing to the strength of a rock mass.

(PDF) Influence of Water Content on the Strength of

Water content is one of the most important factors influencing rock strength. Considerable research has been carried out to investigate rock strength under both dry and water saturated conditions.

Influence of Mineral Composition to Rock Strength on UCG ...

process. The stability of the cavities depends on the rocks strength adjacent of the coal seam, especially the rocks on the roof cavities. UCG process will lead to changes in rock mineralogy structure due to high thermal load around 700 -900 oC or above and the existence of the thermal load also resulted in changes of the rock strength.

what influences the strength of a rock? Yahoo Answers

19-12-2007  Aaron Rodgers named NFL's MVP for the 3rd time. Alex Rodriguez posts video amid alleged DM scandal. Supertall tower living can fall well short of luxury

THE UNIAXIAL COMPRESSIVE STRENGTH OF SOFT ROCK

size, saturation, and mineral content, influence the uniaxial compressive strength of soft rock materials. These factors can considerably reduce the strength of soft rock materials. The influence of moisture content on the behaviour of rocks has been investigated for more than thirty years [5, 6, 7, 8, 9]. It is frequently associated with

Influence of grain size heterogeneity on strength and ...

mechanical behavior of rocks [Mahabadi et al., 2012]. The microcracking behavior of a rock specimen in Brazilian tensile test was found to be influenced by the microscale heterogeneity and microscopic defects [Mahabadi et al., 2014]. More recently, Manouchehrian and

Pore fluid effects on rock mechanics - PetroWiki

29-06-2015  The Influence of Moisture Content on the Compressive Strength of Rock. Ha Noi, Vietnam: National Mechanical Engineering Research Institute (NARIME). ↑ Dunning, J.D. and Huf, W.L. 1983. The effects of aqueous chemical environments on

The effect of water content on the strength of rock – The ...

Water content is the most influence factor that effect on the strength of intact rocks. In general, the mechanical properties of intact rocks decrease when the moisture content increases. The strength of intact rock will decrease after only 1% of saturated of water.

Influence of water content on the strength of rock ...

Water content is one of the most important factors influencing rock strength. Considerable research has been carried out to investigate rock strength under both dry and water saturated conditions. According to these results, the petrophysical properties of rocks decrease with increasing moisture and this can result in an increase in the mechanical compliance in some cases.

The influence of rock mass strength on glacial valley ...

Abstract. The erosional morphology in the vicinity of the Main Divide of the Southern Alps, and Fiordland, New Zealand, appears to be a product of the interaction between Alpine Fault‐induced tectonic processes, rock mass strength of the uplifted and eroded bedrock, and the processes acting to denude the developing mountain landscape.

(PDF) Influence of Water Content on the Strength of

Water content is one of the most important factors influencing rock strength. Considerable research has been carried out to investigate rock strength under both dry and water saturated conditions.

Influence of rock mass strength on the erosion rate of ...

In this work we investigate the influence of rock mass strength on the retreat rate of alpine cliffs. To quantify rockwall competence we employed the Slope Mass Rating (SMR) geomechanical strength index, a metric that combines numerous factors contributing to the strength of a rock mass.

what influences the strength of a rock? Yahoo Answers

19-12-2007  Aaron Rodgers named NFL's MVP for the 3rd time. Alex Rodriguez posts video amid alleged DM scandal. Supertall tower living can fall well short of luxury

The effect of strain rate on rock strength SpringerLink

The effect of the strain rate on strength has been evaluated for two widely different rock types, a brittle limestone (Tyndallstone) and a ductile salt rock (Lanigan potash rock). Results of static and dynamic fatigue tests on Tyndallstone, a dolomitic limestone, show an increase in strength with increasing strain or stressing rate although the rate effect is very small.

Effect of blasting on the strength of rock fragments ...

Finally, the study was used to evaluate new technologies for estimating in-situ rock mass strength and for assessing post-blast fragmentation. To estimate in-situ rock mass strength, the specific energy of drilling (SE) was calculated during blast hole drilling utilizing a continuous drill monitoring system.

Compressive strength of rocks - PetroWiki

04-06-2015  In granular rocks, grain size also influences strength. For constant porosity, mineralogy, and texture, a smaller grain size means greater strength. This tendency has been observed in several sandstones and can be understood in terms of grain contact models.

Pore fluid effects on rock mechanics - PetroWiki

29-06-2015  Fig. 2 – Rock strength as a function of water content or humidity. Strength drops rapidly with the first few monolayers of water (from Colback and Wiid). A strong influence of the chemical activity on rock mechanical properties is supported by other types of measurements.