Results 61 to 70 of about 1,428 (157)

Impact of Sand Grain Size on the Mode I Fracture Toughness and Compressive and Tensile Strength of Artificial Sandstones

Advances in Civil Engineering
Texture and mineralogical composition of rocks have a significant impact on their mechanical properties. Grain size is a crucial textural property of sandstones, as it significantly influences their physical and mechanical characteristics.
Ali Lakirouhani, Fateme Gharedaghi, Sasan Ghasemlooytakantapeh   +2 more
doaj   +1 more source

Correlation between uniaxial compressive strength and water content of Beočin marls [PDF]

Podzemni Radovi
The uniaxial compressive strength (UCS) is one of the most important strength parameters for evaluating the mechanical behavior of rocks and is widely used as a fundamental input in rock mass characterization systems, empirical classifications, strength ...
Čebašek Vladimir, Rupar Veljko, Jovković Dragutin, Živanović Nikola   +3 more
doaj   +1 more source

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 506-538, June 2026.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

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

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

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

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

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

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

Study on the Fragmentation Characteristics and Dust Generation Mechanism of Coal Cutting by Pick

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT During underground excavation, coal dust generation threatens miners' health and damages ecosystems. Its generation is directly influenced by cutting pick performance and inherent coal properties. This study investigates the effects of coal properties and cutting parameters on coal fragmentation characteristics from a mesoscopic perspective ...
Shihang Li, Delong Li, Bohan Gao, Xingyue Chen, Hao Jin, Shuda Hu, Qiang Zhang, Wuping Peng, Ping Li, Jianping Li, Xuegang Wang   +10 more
wiley   +1 more source