Results 81 to 90 of about 2,581 (196)

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 426-445, June 2026.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +1 more source

Prediction of strength and deformability of an interlocked blocky rock mass using UDEC

Journal of Rock Mechanics and Geotechnical Engineering, 2017
The accurate prediction of strength and deformability characteristics of rock mass is a challenging issue. In practice, properties of a rock mass are often estimated from available empirical relationships based on the uniaxial compressive strength (UCS).
Y.M. Alshkane, A.M. Marshall, L.R. Stace
doaj   +1 more source

External Vibrations on Early‐Age Concrete: A Review

Engineering Reports, Volume 8, Issue 5, May 2026.
Scientific illustration of external vibration, their influencing properties and effects, possible outcomes and measures adapted. ABSTRACT Early‐age concrete exhibits limited mechanical strength, making it highly susceptible to external disturbances such as vibrations from construction activities, traffic, or nearby machinery which can disrupt internal ...
Parvathy Kizhakkiniyedath Mohanan, Sylvia Keßler   +1 more
wiley   +1 more source

Influence of the water saturation for the strength of volcanic tuffs

, 2002
Different Hungarian volcanic tuffs (andesite, basalt and rhyolite) were investigated with the goal to determine the influence of the water on their strength.
Vásárhelyi, Balázs
core  

Correlation between uniaxial compressive strength and point-load index strength [PDF]

, 2009
In verifying the material properties of rock, laboratory test need to be carried out to ensure a safe design of structures. Among the most common rock properties verified in laboratory are uniaxial compressive strength test (UCS) and point-load index ...
Sundara, Parameswary
core  

High Temperature Friction and Strength of Felsite and Basalt: Implications for Supercritical EGS at Krafla, Iceland

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract One promising potential site for extracting supercritical geothermal fluids is the Krafla volcano, Iceland, into which a borehole was drilled very close to a shallow rhyolite magma chamber at about 2 km depth. Besides the technical challenge to drill in this setting, the extreme temperature conditions of T > 900°C close to the magma body may ...
E. Rybacki, V. Schuster, J. Starke, S. Incel   +3 more
wiley   +1 more source

Prediction of uniaxial compressive strength and modulus of elasticity for Travertine samples using regression and artificial neural networks

, 2010
Uniaxial Compressive Strength (UCS) and modulus of elasticity (E) are the most important rock parameters required and determined for rock mechanical studies in most civil and mining projects.
Chelgani, Saeed Chehreh,, SATTARI, G.,, ALIABADI, M.A.,, DEHGHAN, S.,   +3 more
core   +1 more source

Comparative Evaluation of Chemical and Physical Expansive Agents in Cemented Paste Backfill: Expansion Behavior, Mechanical Response, and Microstructural Mechanisms

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT This study presents an assessment of four representative expansive additives—calcium sulphoaluminate–calcium oxide, magnesium oxide, sodium lauryl sulfate, and sodium abietate—and their effects on the expansion behavior, mechanical development, and microstructural characteristics of cemented paste backfill (CPB).
Lijie Guo, Mengyuan Li, Xiaoming Wei, Andrew Pan, Xiaopeng Peng, Tingting Ren   +5 more
wiley   +1 more source

Assessment of Scale Effects on Uniaxial Compressive Strength in Rock Salt

, 2009
In mining design studies, the determination of the in situ strength parameters of a rock mass is difficult, expensive, and time consuming. Therefore, designers prefer an empirical approach, which has been developed based on laboratory studies.
Melih Geniş, Ahmet Özarslan, Hakan Özşen, İhsan Özkan   +3 more
core   +1 more source

Comprehensive study on the Python-based regression machine learning models for prediction of uniaxial compressive strength using multiple parameters in Charnockite rocks

Scientific Reports
The strength of rock under uniaxial compression, commonly known as Uniaxial Compressive Strength (UCS), plays a crucial role in various geomechanical applications such as designing foundations, mining projects, slopes in rocks, tunnel construction, and ...
Sowmya Kochukrishnan, Premalatha Krishnamurthy, Yuvarajan D., Nandagopal Kaliappan   +3 more
doaj   +1 more source