#### WHAT ARE THE VALUES OF MODULUS OF ELASTICITY &

Feb 13, 2015· Modulus of Elasticity of Rock Modulus of elasticity of rocks depend upon several factors, such as, Type of rock Porosity Grain size Water content Value of modulus of elasticity can be determined by static or dynamic methods. Higher value of modulus of elasticity indicates good quality rock having sound composition. Typical values of modulus of BACK CALCULATION DETERMINATION OF THE MODULUS ,The purpose of this study is to re-model PMT to do Back Calculation of modulus elasticity on limestone sedimentary rocks on the Bahrain island. Back calculation aims to compare the output of the pressuremeter modulus (EPMT) with the modulus elasticity of rock (E) using a mathematical approach to FEM to produce Menard's α factor that can be

#### Foundations Modulus of Elasticity

The large ranges emphasize the need for testing at each site.What is the elastic modulus of Limestone? Answers,Intact Limestone can have a Young's modulus (E) ranging from:9 GPa 80 GPa.A,BPoisson's ratio (v) for intact specimens varies from between:0.2 0.3.BBulk modulus (K) derived from the above

#### Elastic Modulus Limits For Crushed Limestone

Elastic Modulus Limits For Crushed Limestone. We are a professional mechanical equipment manufacturer, we provide original parts, service solutions, extensive training and extensive wear, crushing chambers and screening media solutions to reduce operating costs, improve product quality and maximum productivity.(PDF) Unconfined Compressive Strength and Young's Modulus,Young's modulus, tangent modulus, and Poi sson's ratio for different rock core specime ns are given in Table 3. Figure 3 shows the s tress strain behaviors of rock core specimens of diameters 6

#### Composite elasticity of Copenhagen limestone

to obtain the modulus of the intact rock mass. Rock mass modulus relating to disturbed rock mass is derived by means of Hoek and Brown model (Hoek et al. 2002) and compared to the results of High Pressure Dilatometer Tests. 1 INTRODUCTION Copenhagen Limestone (CL) is a carbonate rock with varying degree of induration, ranging fromModelling of the Elasticity Modulus for Rock Using Genetic,The elasticity modulus is an important parameter in understanding stress-strain behaviour and is one of the most mechanical characteristics of rocks in regarding their using area . This parameter is decisive in tunnel project, rock destruction and drilling, slope consistency, pillar configuration, embankments, and many other civil and mining

#### Some Useful Numbers

Very strong rock Very hard rock, requires repeated hammer blows >100 MPa Strong rock Hand specimen can be broken with single blow 50-100 MPa Mod. strong rock 5 mm indentations with hammer pick end 12.5-50 MPa Mod. weak rock Too hard to cut by hand 5-12.5 MPa Weak rock Crumbles with blows of pick end of hammer 1.25-5 MPa(PDF) On the Ratios between Elastic Modulus and Uniaxial,On the Ratios between Elastic Modulus and Uniaxial Compressive Strength of Heterogeneous Carbonate Rocks Article (PDF Available) in Rock Mechanics and Rock Engineering 44(1):121-128 ·

#### modulus rock crushing

Elastic Modulus Limits For Crushed Limestone Rock Crushing Modulus hang-on elastic modulus limits for crushed limestone PE Jaw The elastic modulus of the materials is unknown and further work gold mining machine in rock crushing; Elastic Modulus Of Crushed Limestone project-alpineeu Efficiency Factor and Modulus of Elasticity of, modulus.Elastic Modulus Limits For Crushed Limestone,Elastic Modulus Limits For Crushed Limestone. We are a professional mechanical equipment manufacturer, we provide original parts, service solutions, extensive training and extensive wear, crushing chambers and screening media solutions to reduce operating costs, improve product quality and maximum productivity.

#### elastic modulus of crushed stone

elastic modulus limits crushed limestone equipment Djibout . elastic modulus of basalt stone Quarry equipment for sale modulus of elasticity of basalt rock rebar YouTube Dec 23 Get More Info Elastic Modulus 89 Basalt Typical elastic modulus of basalt stone elastic modulus limits for crushed limestone 20 May 1999 The bulk modulus can then get price.BACK CALCULATION DETERMINATION OF THE MODULUS ELASTICITY,BACK CALCULATION DETERMINATION OF THE MODULUS ELASTICITY OF LIMESTONE ROCK BASED ON PRESSUREMETER TEST DATA. Yusep Muslih Purwana, Akbar Dwi Anggoro, Niken Silmi Surjandari, Pontjo Utomo. Abstract. Pressuremeter Test (PMT) is an in situ method of soil investigation that is used to determine the pressure and strain behavior of the soil or rock.

#### bulk modulus crusher

Elastic Modulus Of Basalt Stone. Basalt crusher basalt ore crusher basalt rock the bulk modulus of elasticity of basalt is between cm3 and cm3 and the dense basalt is of high elastic modulus of basalt stone fraying of the terminal part of the rope and folding of the fibers on the stone ashlar so as to form a s the elasticity modulus . Chat NowHOW TO ESTIMATE STRENGTH AND MODULUS OF ROCK FROM ,Aug 15, 2015· Strength and Modulus of Weathered Rock from SPT Values. In the weathered rock it is difficult to drive the split sampler to the full specified depth as in soil. Hence we may estimate the strength and elastic modulus values of weathered rock by driving the spt apparatus for a fixed number of blows and find the penetration.

#### Rock Stress-strain relationships Britannica

Rock Rock Stress-strain relationships: The deformation of materials is characterized by stress-strain relations. For elastic-behaviour materials, the strain is proportional to the load (i.e., the applied stress). The strain is immediate with stress and is reversible (recoverable) up to the yield point stress, beyond which permanent strain results.Report No. REC-ERC-74-10, Rock Mechanics Properties of,The rock is an amphibolite. ENGINEERING PROPERTIES OF ROCK CORE SAMPLES STATIC MODULUS OF ELASTICITY SPECIFIC GRAVITY ABSORPTION,% No. No. spec. avg 2.94 range 0.16 ~g 0.1 range 0.1 spec. stressrange psi 0-2000 0-4000 0-6000 0-8000 Secant E 106psi 13.5 13.8 13.2 12.9 ~ (~.18.20.21.21 (3) COMPRES~VESTRENGTH,PSI avg 40300 range 20200 (3

#### The Methodology for the Young Modulus Derivation for Rocks

Jan 01, 2017· Keywords: "rock mechanics, Young's modulus; laboratory rock tests; range of elasticity" The elastic behaviour of rocks and the range of their elasticity are of crucial importance in rock engineering. In solving problems in mining engineering or tunnelling, the change of stress fields forced by an excavation drivage first depends on the elasticYoung's modulus Wikipedia,Young's modulus, or the Young modulus, is a mechanical property that measures the stiffness of a solid material. It defines the relationship between stress (force per unit area) and strain (proportional deformation) in a material in the linear elasticity regime of a uniaxial deformation.. Young's modulus is named after the 19th-century British scientist Thomas Young; but the concept was

#### Prediction of Uniaxial Compressive Strength and Modulus of

and Modulus of Elasticity are presented in Tables (2, 3 and 4). The range of Schmidt hammer rebound value was from 26.4 to 42.6 for limestone of Pila Spi Formation, 16.4 to 24.6 for limestone of Fatha Formation and 37.2 to 39.6 for sandstone of Tanjero Formation. TheEstimating the deformation modulus of jointed rock mass,elastic modulus with lateral stress applied on intact rock [1]. Arora has presented an equation to calculate elastic modulus of jointed rock mass using elastic modulus of intact rock and lateral stress (σ 3) [2]. Having carried out a large number of tests, Kulhawy developed an equation to calculate rock

#### Rock mass properties Rocscience Inc.

deformation modulus of rock masses was made by Hoek and Diederichs (2006). This chapter presents the most recent version of the Hoek-Brown criterion in a form that has been found practical in the field and that appears to provide the most reliable set of results for use as input for methods of analysis in current use in rock engineering.Modulus Of Elasticity Of Crushed Limestone,Modulus Of Elasticity Of Crushed Limestone. Modulus of elasticity of concrete is frequently expressed in terms of compressive strengthhile many empirical equations for predicting modulus of elasticity have been proposed by many investigators, few rushed limestone and calcined bauxite and the third, which requires correction factors smaller than 1, includes more.

#### Modulus Of Elasticity Of Crushed Limestone

Modulus Of Elasticity Of Crushed Limestone. Modulus of elasticity of concrete is frequently expressed in terms of compressive strengthhile many empirical equations for predicting modulus of elasticity have been proposed by many investigators, few rushed limestone and calcined bauxite and the third, which requires correction factors smaller than 1, includes more.Estimating the deformation modulus of jointed rock mass,elastic modulus with lateral stress applied on intact rock [1]. Arora has presented an equation to calculate elastic modulus of jointed rock mass using elastic modulus of intact rock and lateral stress (σ 3) [2]. Having carried out a large number of tests, Kulhawy developed an equation to calculate rock

#### Rock Stress-strain relationships Britannica

Rock Rock Stress-strain relationships: The deformation of materials is characterized by stress-strain relations. For elastic-behaviour materials, the strain is proportional to the load (i.e., the applied stress). The strain is immediate with stress and is reversible (recoverable) up to the yield point stress, beyond which permanent strain results.BACK CALCULATION DETERMINATION OF THE MODULUS ELASTICITY,BACK CALCULATION DETERMINATION OF THE MODULUS ELASTICITY OF LIMESTONE ROCK BASED ON PRESSUREMETER TEST DATA. Yusep Muslih Purwana, Akbar Dwi Anggoro, Niken Silmi Surjandari, Pontjo Utomo. Abstract. Pressuremeter Test (PMT) is an in situ method of soil investigation that is used to determine the pressure and strain behavior of the soil or rock.

#### Prediction of Uniaxial Compressive Strength and Modulus of

and Modulus of Elasticity are presented in Tables (2, 3 and 4). The range of Schmidt hammer rebound value was from 26.4 to 42.6 for limestone of Pila Spi Formation, 16.4 to 24.6 for limestone of Fatha Formation and 37.2 to 39.6 for sandstone of Tanjero Formation. TheEstimating the modulus of elasticity of the rock material,The modulus of elasticity of rock material is one of the most important rock properties used in designing civil and mining projects such as dam and tunnel constructions or mine layout design. High-quality core samples are needed to obtain this parameter using laboratory tests. Sometimes it is very difficult to obtain highquality cores from particularly thinly bedded and heavy rock masses.

#### Rock mass properties Rocscience Inc.

deformation modulus of rock masses was made by Hoek and Diederichs (2006). This chapter presents the most recent version of the Hoek-Brown criterion in a form that has been found practical in the field and that appears to provide the most reliable set of results for use as input for methods of analysis in current use in rock engineering.All the elastic moduli — Agile,Apr 28, 2016· Since strain is unitless, all the elastic moduli have units of pressure (pascals, Pa), and is usually on the order of tens of GPa (billions of pascals) for rocks. The other elastic moduli are: Shear modulus, \(\mu\) or \(G\), a measure of shear elasticity. 1st Lamé parameter, \(\lambda\), which famously 'has no physical interpretation'.

#### Empirical relations between rock strength and physical

sedimentary rocks (sandstone, shale, and limestone and dolomite) to physical properties (such as velocity, modulus, and porosity). These equations can be used to estimate rock strength from parameters measurable with geophysical well logs. The ability of theseDesign Manual Engineering Properties of Soil and Rock,(PMT), or Dilatometer (DMT) should be considered for evaluating the elastic modulus of the soil strata. Typical elastic modulus values of predominately granular materials are shown in Table 3. Table 3: Typical elastic modulus values for granular s oil (modified after Sabatini, 2002) . soil type range of equivalent elastic modulus ksf (kPa)

#### Modulus of Elasticity an overview ScienceDirect Topics

Formula (4.8) indicates that a smaller value of Poisson's ratio corresponds to a larger value of Young's modulus and a larger brittleness index. To calculate the brittleness index with Formula (4.8), the key is to obtain high-accuracy rock elasticity parameters such as Young's modulus and Poisson's ratio.The logging acquisition series should include high-precision density logging and array (orRock Mechanical properties Britannica,Rock Rock Mechanical properties: When a stress σ (force per unit area) is applied to a material such as rock, the material experiences a change in dimension, volume, or shape. This change, or deformation, is called strain (ε). Stresses can be axial—e.g., directional tension or simple compression—or shear (tangential), or all-sided (e.g., hydrostatic compression).

#### Rock Mechanics

Determining the modulus of elasticity E t50! Plotting E t50 value of a rock vs the unconfined compressive strength gives a visual comparison of the strength and modulus values of different rocks. ! M R= E t50 σ a (unconfined compressive strength) Modulus Ratio Differences between static and dynamic elastic moduli of a,Summary. Static and dynamic elastic moduli of Calcare Massiccio mudstone-limestone, the typical seismogenic rock in the Italian Apennines, are measured using a standard uniaxial static compression test, a dual cantilever forced oscillation test and ultrasonic measurement of elastic wave velocities.