ucs rock strength granite

Analysis of size effects on the geomechanical parameters of

·A total of 28 uniaxial compressive strength tests were performed on cylindrical Blanco Mera granite samples with diameters ranging between 14 and 100 mm with results indicating that this granite undergoes a significant reverse size effect the UCS increases as sample diameter increases up to 54 mm but thereafter decreases It was also found that the

Improving uniaxial compressive strength estimation of carbonate

·Uniaxial compressive strength UCS is the most used parameter to measure rock strength However restrictions in sampling large volume of material the need of very large set of results and onsite characterisation of UCS non destructively are requirements in many scientific and engineering investigations

Determination of the Uniaxial Compressive Strength of

·Uniaxial compressive strength UCS and Brazilian tensile strength BTS of the rock material are important engineering parameters in designing of surface and underground structures in rocks

Prediction of uniaxial compressive strength of rock based on

·Uniaxial compressive strength UCS of rock is an essential parameter in geotechnical engineering Point load strength PLS P wave velocity and Schmidt hammer rebound number SH are more easily obtained than UCS and are extensively applied for the indirect estimation of UCS Granite belongs to igneous rock and is a common rock that

Crack propagation process in double flawed granite under

·In the formula symbol A is the total area of rock mass subjected to axial stress σ 1; σ 1b is the strength of intact rock σ 1b = σ c ; σ 1j is the strength of the fractured rock; a is the

Correlation Between Uniaxial Compressive and Shear Strength

·A total of 40 sets of data were used to correlate UCS and τ data of lime stone rocks and shear strength of jointed granitic rock UCS parameters are quite easily identified and common

Predicting the Uniaxial Compressive Strength of a Limestone

·The effect of exposure to high temperature on rock strength is a topic of interest in many engineering fields In general rock strength is known to decrease as temperature increases The most common test used to evaluate the rock strength is the uniaxial compressive strength test UCS It can only be carried out in laboratory and presents some limitations in

Empirical correlation of uniaxial compressive and shear

However to get the shear strength of the rock joints is quite costly and difficult to be identified directly at site This research is conducted to establish the relationship between uniaxial compressive strength UCS and shear strength of jointed granitic rock UCS parameters are

Uniaxial Compressive Strength UCS and creep testing

·BOGUMIŁA PAŁAC WALKO & PYTEL 5 angles to each other at about the upper height in the middle of height and the lower height of the specimen The specimen was loaded continuously at a constant rate of stress increment such that the

Stress Dependency of Brittle Creep in Granite Insights into

·Creep in rocks refers to the gradual deformation of rock material over time under the influence of constant stress Characterizing these deformations is of great importance for engineering design geotechnical assessment mining operations geological studies and understanding natural hazards While laboratory experiments and a variety of numerical

Prediction of Uniaxial Compressive Strength of Rocks from

·Rock engineering tasks like tunnelling dam and building construction and rock slope stability rely heavily on properly estimating the rock s uniaxial compressive strength UCS a crucial rock geomechanical characteristic As high quality specimen are not always possible scientists often estimate UCS indirectly The primary objective of this paper is to assess the

PDF Prediction of the strength and elasticity

·Understanding the strength characteristics and deformation behaviour of the tunnel surrounding rock in a fault zone is significant for tunnel stability evaluation In this study a series of unconfined compression tests were conducted to investigate the mechanical characteristics and failure behaviour of completely weathered granite CWG from a fault zone

Prediction of uniaxial compressive strength of granitic rocks

·Sonmez and Tunusluoglu [47] proposed a new approach for the use of BPI to predict the UCS of rock material Mishra and Basu [48] aimed to explore the applicability of the BPI test in estimating UCS and Brazilian tensile strengths of granite schist and sandstone from India The researchers proposed empirical equations for predicting uniaxial

Uniaxial compressive strength measurements of limestone

·In many geo engineering fields the uniaxial compressive strength UCS of a rock material is the parameter most commonly used to define a rock s mechanical strength Several international standards have been developed for determining this value which require the tested material to have certain minimum dimensions and shapes In many applications however

Prediction of Rock Abrasivity Index RAI and Uniaxial

·In rock mining and/or tunneling engineering determination of uniaxial compressive strength UCS of rocks is an important and crucial task which is often estimated from readily available index

PDF Correlation Between Uniaxial Compressive

The Bukit Timah Granite BTG formation is widely distributed in the central and northern parts of Singapore Island The BTG rocks in the formation vary from granite to granodiorite

Correlations of Uniaxial Compressive Strength of Rock Mass

There has been a lot of interest in the relationship between uniaxial compressive strength UCS and other properties of rock Evaluation of rock parameters such as cohesion Young s modulus angle of friction and Poisson s ratio is required for numerical modeling of rock Finding empirical relations between these parameters with UCS has

A review of test methods for uniaxial compressive strength

·The UCS is also a significant parameter for characterization of the mechanical properties of the rock/rock mass Zhang et al 2011 In scientific research the UCS is useful to analyze the mechanical and fatigue behavior of rocks Alizadeh et al 2023; Haeri et al 2023 A series of experiments and numerical simulations based on uniaxial compression test have

Prediction of Rock Abrasivity Index RAI and Uniaxial

·Compressive Strength UCS of Granite Building Stones Using Nondestructive Tests Ali Farhadian · Ebrahim Ghasemi · Seyed Hadi Hoseinie · Raheb Bagherpour Schimazek s F value and rock abrasivity index RAI the stone abrasivity is generally determined using indirect methods using a combination of pet

Uniaxial Compressive Strength Determination of Rocks Using

·The uniaxial compressive strength UCS is an important parameter for rock mass classification and rock engineering designs This study proposes a novel method for predicting the UCS of rocks using X ray computed tomography and convolutional neural networks First X ray CT scanning was conducted on five mudstone specimens The volume data

Prediction of Rock Unloading Strength Based on PSO

·Rock excavation is essentially an unloading behavior and its mechanical properties are significantly different from those under loading conditions In response to the current deficiencies in the peak strength prediction of rocks under unloading conditions this study proposes a hybrid learning model for the intelligent prediction of the unloading strength of rocks

Lithological Control on the Estimation of Uniaxial Compressive Strength

·Uniaxial compressive strength UCS is the most fundamental physico mechanical parameter used for any rock mass classification in geotechnical and geological engineering However determining UCS is a very tough expensive time consuming and destructive method and requires experienced workers On the other hand P wave velocity