Results 71 to 80 of about 1,428 (157)

Analisis Hubungan Nilai Rebound Schmidt Hammer Dengan Nilai Uniaxial Compressive Strength (UCS) Pada Batupasir Formasi Balikpapan Dan Pulaubalang

Venus: Jurnal Publikasi Rumpun Ilmu Teknik 
Uniaxial Compressive Strength is a test method to classify the strength and characterization of intact rock. Where it is important information in determining the strength and characteristics of a rock obtained by testing using the UCS tool. In this research, an alternative is made in determining the UCS value precisely and easily, namely by using the ...
null Roberto Firson Pappang, null Tommy Trides, null Albertus Juvensius Pontus   +2 more
openaire   +1 more source

Korelasi Nilai Rebound Schmidt Hammer Dengan Nilai Uniaxial Compressive Strength (UCS) Seam Batubara A2 dan C Pada Pit 3 Timur Banko Barat, di PT. Bukit Asam, Tbk

Prosiding Temu Profesi Tahunan PERHAPI, 2018
Nilai Uniaxial Compressive Strength adalah gambaran dari nilai tegangan maksimum yang dapat ditanggung sebuah contoh batuan sesaat sebelum contoh batuan tersebut hancur. Hal tersebut merupakan informasi penting dalam menentukan kekuatan dan karakteristik suatu batuan baik massa batuan maupun batuan utuh yang didapat dengan pengujian menggunakan alat ...
openaire   +2 more sources

Dynamic mechanical behaviors of Fangshan marble

Journal of Rock Mechanics and Geotechnical Engineering, 2017
Dynamic strength parameters are extensively used in mining engineering and rock mechanics. However, there are no widely accepted dynamic failure models for rocks. In this study, the dynamic punching shear strength, uniaxial compressive strength (UCS) and
Wei Yao, Taiming He, Kaiwen Xia
doaj   +1 more source

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

Case 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, Shenghua Shi, Weiwei Lu, Songtao Lv, Qi Chen, Haihui Duan, Yi Yang   +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

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  

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

Enhancing Mechanical Strength and Slake Durability of Remolded Loess via Microbial-Induced Carbonate Precipitation (MICP): A Microstructural Study

Applied Sciences
Loess has a metastable microstructure and high water sensitivity. When exposed to water, it undergoes rapid structural damage and disintegration, posing significant risks to the stability and durability of geotechnical structures such as foundations and ...
Zhuo Chen, Huili Zhang, Xulong Bai, Zhengyan Cheng, Kangyi Nie, Kanliang Tian   +5 more
doaj   +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