Results 101 to 110 of about 6,394 (206)

Analysis and evaluation of fragment size distributions in rock blasting at the Erdenet Mine [PDF]

open access: yes, 2015
Master's Project (M.S.) University of Alaska Fairbanks, 2015Rock blasting is one of the most important operations in mining. It significantly affects the subsequent comminution processes and, therefore, is critical to successful mining productions.
Dondov, Erdenebaatar   +1 more
core  

Analysis of strength size effect and failure mechanism of asphalt mixtures based on discrete element method

open access: yesCase Studies in Construction Materials
The purpose of this study is to further investigate the strength size effect and failure mechanism of asphalt mixtures and clarify the strength parameter conversion relationship between standard and non-standard size samples.
Pei Zhao   +6 more
doaj   +1 more source

Effect of Curing Time and Percentage of Concrete Additives on Increasing the Compressive Strength and Shear Strength of Silty Sand Soils

open access: yesعلوم آب و خاک, 2022
The existence of silty sand in the infrastructure under concrete constructions, hydraulic structures, and irrigation systems has always caused challenges.
H. Daghigh   +3 more
doaj  

Application of Schmidt Rebound Number for Estimating Coal Strength [PDF]

open access: yes, 2016
In Rock Mechanics, determination of Unconfined Compressive Strength (UCS) of rock is of prime importance as its role in design and analysis of geotechnical problems is crucial.
Dandapat, Prasanjit
core  

The use of point load test for Dubai weak calcareous sandstones

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2015
Intact rock is typically described according to its uniaxial compressive strength (UCS). The UCS is needed in the design of geotechnical engineering problems including stability of rock slopes and design of shallow and deep foundations resting on and/or ...
Amr Farouk Elhakim
doaj   +1 more source

Strength, Toughness, Damage And Fatigue Of Rock [PDF]

open access: yes, 2004
Assessment of rock mechanical properties depends on sample size and testing methodologies. Even for samples cored from the same rock outcrop the difference in properties appears to be sensitive to the local thermal and stress histories of the rock ...
Alehossein, Habib, Boland, J. N.
core  

DEVELOPMENT OF EXPERIMENTAL CORRELATIONS BETWEEN INDENTATION PARAMETERS AND UNCONFINED COMPRESSIVE STRENGTH (UCS) VALUES IN SHALE SAMPLES DESARROLO DE CORRELACIONES EXPERIMENTALES ENTRE PÁRAMETROS DE IDENTACIÓN Y LA RESISTENCIA COMPRENSIVA UNIAXIAL (UCS) PARA MUESTRAS DE SHALE

open access: yesCT&F Ciencia, Tecnología & Futuro, 2008
Unconfined Compressive Strength (UCS) is one of the rock mechanical properties that is important take into account during drilling operations in order to avoid wellbore instability. During drilling operations, UCS variability influences wellbore stability more than other factors such as azimuth, slope, exposure time, and mud weight (Jaramillo, 2004 ...
Ricardo-Andrés García   +3 more
openaire   +1 more source

Data-driven models for uniaxial compressive strength prediction applied to unseen data [PDF]

open access: yes, 2013
Data Mining (DM) techniques have been successfully applied to solve a wide range of real-world problems in different real-world domains, particularly in the field of geotechnical civil engineering.
Correia, A. Gomes   +2 more
core  

Advancing Geotechnical Evaluation of Wellbores: A Robust and Precise Model for Predicting Uniaxial Compressive Strength (UCS) of Rocks in Oil and Gas Wells

open access: yesApplied Sciences
This study examines the efficacy of various machine learning models for predicting the uniaxial compressive strength (UCS) of rocks in oil and gas wells, which are essential for ensuring wellbore stability and optimizing drilling operations. The investigation encompasses Linear Regression, ensemble methods (including Random Forest, Gradient Boosting ...
openaire   +2 more sources

Relationship of Physical Properties of Limestone and Marblewith Rock Strength Under Specific Geological Conditions from Khyber Region Hunza

open access: yesInternational Journal of Economic and Environment Geology, 2020
The uniaxial compressive strength (UCS) is one of the input parameters mostly used in surface and underground designs. A literature review revealed that most of the empirical equations between UCS and Schmidt hammer rebound ...
Naeem Abbas, Javed AkhterQureshi, Garee Khan, Muhammad Alam, Hawas Khan, Yasmeen Bano, Masroor Alam, Shams ur Rehman, Asgar Khan
doaj  

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