Results 11 to 20 of about 10,555,550 (261)
Point Load Index of Rocks Exposed to High Thermal Effect [PDF]
Journal of Engineering Research - Egypt, 2021 High thermal effects on Point Load Index (P.L.I) of rocks tolerate in mind an essential issue for numerous geotechnical engineering purposes. Many engineering relevancies interact with it as Geothermal power reserve extraction, Fires that occur in ...
Mohamed Labeeb +3 more
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Characterization of rock material by point load strength index test and direct cut
Minerva, 2021 The objective of this work is to establish a relationship between the cutting time in rocks, determining a speed and the point load strength index test, Is (50), to characterize the rock in terms of resistance and avoid sending samples to laboratories. As a first stage, on andesite samples, 5 x 5 x 10 cm test tubes were made. After the elaboration they
Ernesto Patricio Feijoo Calle +1 more
core +4 more sources
Shock and Vibration, 2022 Point load test is a simple and fast method to obtain the compressive strength of rock. According to the maximum load at failure and the distance between two cone ends, the compressive strength of specimens can be calculated by the empirical formula ...
Ming Zhou +4 more
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Estimation of Uniaxial Compressive Strength and Tensile Strength of Sandstone Based on Point Load
Renmin ZhujiangIn rock mechanics and engineering practice, accurate and rapid evaluation of uniaxial compressive strength and tensile strength of rock is important for engineering design and construction safety. Traditional test methods are time-consuming and laborious,
LIU Yongzhi +5 more
doaj +3 more sources
Journal of Korean Society For Rock Mechanics, 2012 Though the uniaxial compressive strength (UCS) of rock material is one of the key properties for rockmass characterization purposes, core samples for the test cannot always be obtained from the field. Indirect tests such as the point load test (PLT) can be a useful alternative.
Gyoung Man Kim +4 more
openaire +3 more sources
Experimental studies of scale effects on shear strength, and deformation of rock joints [PDF]
, 1980 The effect of scale on shear strength is studied by performing direct shear tests on different sized samples of large joints. A rubber moulding system is used to obtain impressions of the roughness from a variety of natural joint surfaces.
Bandis, Stavros
core +6 more sources
The Effect of Mineral Composition on the Correlation between Point Load Index with the Uniaxial Compressive Strength of Sulfate Rocks and their Point Loading Deformation [PDF]
Periodica Polytechnica Civil EngineeringPoint load test is a common, inexpensive and fast test for the indirect achievement of compressive or tensile strength of the rocks in the laboratory and the field. In this research, by conducting uniaxial compression test (UCT), axial (APLT), and diametral (DPLT) point load tests on gathered sulfate rock blocks from the Gachsaran Formation outcrops at
Mohammad Reza Rahimi +1 more
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工程科学学报, 2023 The frequent occurrence of core disking in boreholes under high in-situ stress in deep rock engineering leads to the difficulty in intact core sampling on sites.
Di-yuan LI +4 more
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PREDICTION OF UNCONFINED COMPRESSIVE STRENGTH OF ROCKS BY POINT LOAD STRENGTH INDEX [PDF]
Journal of Al-Azhar University Engineering Sector, 2019 The point load testing is widely used to determine rock strength indeces in geotechnicalpractices as a result to simplicity. The present study presents correlation equations betweenthe unconfined compressive strength (qu) and point load strength index Is(50) adopted fordifferent types of rocks.
Mohamed mohamed +2 more
openaire +1 more source
Determining the strength index of coal from the Brod - Gneotino deposit, Bitola [PDF]
Mining and Metallurgy Engineering Bor, 2018 The Point Load Test (PLT) was performed in the geomechanical laboratory of the MMI Bor, in order to determine the strength index of coal samples from the Brod - Gneotino, Bitola, Republic of Macedonia. On the basis of the obtained results, it is possible
Tašić Dušan +2 more
doaj +1 more source