Results 31 to 40 of about 1,428 (157)
Journal of Applied Mathematics and Physics, 2014 Occasionally, in complex inherent characteristics of certain rocks, especially anisotropic rocks it may be difficult to measure the uniaxial compressive strength UCS. However, the use of empirical relationships to evaluate the UCS of rock can be more practical and economical.
Esamaldeen Ali, Guang Wu
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Application of Geostatistical Modelling to Study the Exploration Adequacy of Uniaxial Compressive Strength of Intact Rock alongthe Behesht-Abad Tunnel Route [PDF]
International Journal of Mining and Geo-Engineering, 2014 Uniaxial compressive strength (UCS) is one of the most significant factors on the stability of underground excavation projects. Most of the time, this factor can be obtained by exploratory boreholes evaluation.
Mohammad Doustmohammadi +2 more
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International Journal of Economic and Environment Geology, 2020 Marble is globally used as a natural stone for decorative and architectural purposes. Primary utilization of marble is as building and dimension stones.
Noor Muhammad, Umair Hassan, Zahid Ur Rehman, Sajjad Hussain, Muhammad Sajid, Atique Ahmad.
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Prediction of cemented backfill strength by ultrasonic pulse velocity and BP neural network
工程科学学报, 2016 Tailing-cemented backfill is a cement-based heterogeneous composite whose uniaxial compressive strength (UCS) and ultrasonic pulse velocity (UPV) are dependent on cement dosage, solid content, sample type, etc.
XU Miao-fei +5 more
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Open Geosciences, 2018 In this work, the intensive theoretical study and laboratory tests are conducted to evaluate the craters morphology via the flat-ended indenter test, relationship of indentation hardness (HRI) and uniaxial compressive strength (UCS).
Zhang Ligang +5 more
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Deep Underground Science and Engineering, EarlyView.A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen +5 more
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Petrography of Jutana Dolomite: Implications for Geotechnical Utility [PDF]
International Journal of Economic and Environment Geology, 2018 Present study has been carried out to know the reliance of mechanical properties on the petrographic parameters. The Jutana dolomite is comprised of dolomite, sandy dolomite and siliciclastic beds.
Mustafa Yar +3 more
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Deep Underground Science and Engineering, EarlyView.Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
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Deep Underground Science and Engineering, EarlyView.B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza +4 more
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Strength behaviour of a model rock intersected by non-persistent joint
Journal of Rock Mechanics and Geotechnical Engineering, 2019 Several constructions in the field of civil engineering quite often need to deal with rocks. Strength behaviour of rock intersected by a discontinuity or a set of discontinuities has been a topic of keen interest for engineering community.
Divya Shaunik, Mahendra Singh
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