Results 101 to 110 of about 2,581 (196)

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

علوم 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, H. Mousavi Jahromi, A. Khosrojerdi, H. Hassanpour Darvishi   +3 more
doaj  

Predicting uniaxial compressive strength using Support Vector Machine algorithm

, 2019
Compressive strength is the most important parameter in rock since all loads will be transferred and rest on the rock which is based on the load bearing capacity of rock in compression.
Amin, Mohd For, Abdullah, Rini Asnida, Zakaria, Hafedz, Ismail, Amelia Ritahani   +3 more
core  

The use of point load test for Dubai weak calcareous sandstones

Journal 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

Uniaxial compressive strength measurements of limestone plugs and cores : a size comparison and X-ray CT study [PDF]

, 2019
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.
Van Stappen, Jeroen, Van Stappen, Jeroen F., De Kock, Tim, De Schutter, Geert, Cnudde, Veerle, Experimental rock deformation   +5 more
core   +1 more source

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

Applied 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

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

CT&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, Néstor-Fernando Saavedra, Zuly Calderón-Carrillo, Darwin Mateus   +3 more
openaire   +1 more source

New correlations for estimating uniaxial compressive strength of carbonates in the Egyptian Western Desert

Journal of Engineering and Applied Science
Proper uniaxial compressive strength (UCS) and other rock mechanical properties are essential parameters for planning and stimulating oil and gas wells, especially for unconventional resources.
Mohamed Salah Eid, Abdulaziz M. Abdulaziz, Abdel Sattar Dahab   +2 more
doaj   +1 more source

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

International 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  

Electrical resistivity measurement to predict uniaxial compressive and tensile strength of igneous rocks

, 2010
Electrical resistivity values of 12 different igneous rocks were measured on core samples using a resistivity meter in the laboratory. The resistivity tests were conducted on the samples fully saturated with brine (NaCl solution) and the uniaxial ...
TEKIN YEKEN, YEKEN, TEKİN, KAHRAMAN, SAİR, SAIR KAHRAMAN   +3 more
core   +1 more source

Effects of Different Ratios of Fly Ash and River Sand on Mechanical Properties of Cemented Paste Backfill Materials

Advances in Civil Engineering
The mechanical properties of cemented paste backfill (CPB) are crucial for stope safety. Some mining areas in the Yellow River basin face a shortage of coal gangue, and these areas have abundant river sand (RS) resources.
Jiang Li, Shenggen Cao, Yang Liu, Chiyuan Che, Changzheng Zhao, Shuyu Du, Kaifei Wang, Ruiting Ma   +7 more
doaj   +1 more source