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Assessing point load strength in irregular phyllite via an equivalent area method. [PDF]
PLoS ONEObtaining intact cylindrical cores from soft, weathered rock is frequently challenging, making the point load test a preferred technique for quickly determining rock strength.
Hong Zhang, Yong Cao, Qiang Luo, Wei Qi
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A new method for evaluating the rock mass damage index based on the field point load strength [PDF]
Royal Society Open Science, 2019 The damage index is a crucial controlling parameter for rock mass strength and deformation in civil, geological and mining engineering projects. In this study, a new method was proposed for computing the damage index of a rock mass based on the field ...
Lei Wen +5 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
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Evaluation of artificial neural network, neuro-fuzzy and multivariate regression modelling for prediction of concrete compressive strength via point load test [PDF]
مجله مدل سازی در مهندسی, 2020 Nowadays, the determination of in place concrete strength is more considered. The necessity of in situ testing can be expressed in a variety of applications such as structural change or development, quality control, strength evaluation and concrete ...
meysam effati +2 more
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Buildings, 2022 Concrete is a brittle material whose tensile strength is about one-tenth of its compressive strength. Tensile strength is a key parameter for concrete under impact loading.
Jie Wang, Junlin Tao
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Shock and Vibration, 2021 The deep high prestatically loaded rock is often subjected to low-frequency dynamic disturbance and exhibits unusual strength characteristics, and thus, it is important to investigate the strength characteristics under the coupling effect of prestatic ...
Wuxing Wu, Fengqiang Gong
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Research on Rock Strength Test Based on Electro-Hydraulic Servo Point Load Instrument
Applied Sciences, 2022 A new electro-hydraulic servo point load instrument was designed to address the problem that the existing point load instrument cannot be loaded continuously and uniformly; different loading rates (using three loading rates: 0.1, 0.5, 1.0 kN/s) were ...
Xiaoxia Zhou +5 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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Tensile strength test of coal and rock with different coal structure
Gong-kuang zidonghua, 2021 Coal and rock, as a special sedimentary rock, mostly undergoes multiple phases of tectonic movements after its formation, resulting in the diversity of coal structures.
HUANG Kai, +3 more
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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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