Prediction of compressive strength of granite: use of
2023.11.15 The accurate determination of uniaxial compressive strength (UCS) plays a vital role in the initial design phase of rock engineering and rock geotechnics. Traditionally, this assessment entails costly, time-intensive and labor-demanding experimental tests.
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Dynamic properties of granite rock employed as coarse
2021.10.1 Granite rock is widely distributed throughout the world, and there are large variations in the mechanical properties of granite extracted from various places – for
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Performance evaluation of granite rock based on the
2023.8.22 A quantitative analysis method for the mechanical properties of rock materials based on piezoelectric health monitoring was established, and for the first time,
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Triaxial Compressive Strength, Failure, and Rockburst
2022.9.21 An energy storage index is introduced to discuss rockburst potential of the granite under thermal–mechanical coupled conditions. It is found that high-ground
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Uniaxial Compressive Behavior of Granite at High Strain Rates - Rock ...
2021.6.20 In this study, to understand the dynamic behavior of the widely used building granite quarried in China, granite cylinders were made for static and dynamic
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Experimental Investigation on Compressive Strength,
2022.10.21 Kuang, Lianfei, Lipeng Sun, Dongxu Yu, Yijiang Wang, Zhaoxiang Chu, and Jo Darkwa. 2022. "Experimental Investigation on Compressive Strength, Ultrasonic
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(PDF) Experimental Investigation on Compressive Strength,
2022.12.1 Experimental Investigation on Compressive Strength, Ultrasonic Characteristic and Cracks Distribution of Granite Rock Irradiated by a Moving Laser
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Experimental Investigation on Compressive Strength,
2022.10.21 compressive strength of granite ranged between 120 and 140 MPa, with the main minerals of quartz and albite. The detailed technical data were presented in our
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Article Experimental investigation on compressive
2023.10.30 By using the laser irradiation cracking method, this study investigates the changes in uniaxial compressive strength, ultrasonic characteristics and crack
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The sensitivity of mechanical properties and pore structures
2023.5.22 The uniaxial compressive strength and elastic modulus of granite sample showed a negative correlation with porosity; the fundamental reason for the changes in
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Experimental Investigation on Compressive Strength,
2022.10.21 Efficient fracturing is the key issue for the exploitation of geothermal energy in a Hot Dry Rock reservoir. By using the laser irradiation cracking method, this study investigates the changes in uniaxial compressive strength, ultrasonic characteristics and crack distributions of granite specimens by applying a laser beam under various
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Experimental Investigation on Compressive Strength,
2022.10.21 Distribution of Granite Rock Irradiated by a Moving Laser Beam. Appl. Sci. 2022, 12, 10681. ... based on the China Standard GB/T50266-2013. Both ends of the granite specimens were. Appl. Sci. 2022, 12, ... compressive strength of granite ranged between 120 and 140 MPa, with the main minerals ...
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Mechanical properties of granite at high temperature
2023.4.1 The lithology of the HDR reservoir is generally granite buried at a depth below 3 km with high rock mechanical strength, subjected to high in-situ stress and high temperature (150–650°C) environment. 2 For instance, the Qiabuqia geothermal field with granite formation located in the eastern part of the Gonghe basin of Northwest China
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Frontiers Mechanical Properties and Acoustic Emission
2022.7.1 The weakly cemented sandstone is widely distributed in the Western Mining Area, which is mainly formed by mineral grains and cemented minerals through compaction and cementation. To study the influence of grain size on the mechanical properties and acoustic emission (AE) characteristics of weakly cemented sandstone, uniaxial
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An experimental investigation on fatigue characteristics of granite ...
2022.10.1 Granite specimens were used in this study and cored from a complete and unweathered rock mass in Yueyang, China. All samples were meticulously drilled along the same direction and machined to meet the processing standards recommended by ISRM. 39 For Brazilian tests, the diameter and height of the disc samples are 50 mm and 25 mm,
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Experimental and numerical investigation on compressive strength
2022.7.25 Engineering problems are related to the failure of geological material, especially that of jointed rock masses. To investigate the influence of confining stress and inclination angle β on cracking behavior and failure mechanism, triaxial compression tests are conducted on rock-like samples containing parallel opening flaws. There are two
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Physical and dynamic mechanical behaviors of marble after ...
2021.10.24 The dynamic mechanical properties of rock specimens after thermal treatment in the air-filled environment (AE: i. e., at the free surface) have been extensively investigated, yet they are rarely estimated in the quasi-vacuum environment (VE: i. e., far from free surface), which is of special importance in engineering practice. Several
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Characterization and modeling of the compressive behavior of a granite ...
2023.7.21 2.1 Preparation of rock specimen. As shown in Fig. 1, the granite adopted in this study was collected from Ganzi Tibetan Autonomous Prefecture, Sichuan Province, China.The physical parameters of the granite specimens are displayed in Table 1; they are presented that at the room temperature, with the average density of the tested granite
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1,* , Yixian Xu 2 and Guojun Zhang 1, - mdpi-res
2022.11.10 the UCS of a rock, Wang and Aladejare [33] developed a method that can select the most appropriate mode for a specific rock site. Artificial techniques such as machine learning have been employed to estimate the compressive strength of brittle materials [34]. The UCS is an important parameter in the load-bearing computation of
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Experimental investigation on mechanical behaviors of Nanan granite ...
2021.1.11 Understanding the mechanical behaviors of granite after high temperature exposure and under confining stress conditions is an important issue in deep rock engineering projects such as the mining of deep underground solid mineral resources, deep geothermal energy exploitation and deep nuclear waste repositories. In this research,
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Experimental study on the competing effects of strain rate
2022.12.5 Measuring the rock compressive strength under combined effects of strain rate and water weakening is of great importance and at the same time a major issue for engineers. ... Leibo Country, China, and a granite rock extracted from an open-pit mine located in Changtai Country, China. According to the International Society for Rock
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Triaxial Compressive Strength, Failure, and Rockburst
2022.9.21 Deep underground rock tunnels and caverns in mountainous areas are often subjected to the coupling impacts of high geo-stresses and high-ground temperature that can threaten the stability of rock masses. This paper presents an experimental study of strength, deformation, and failure as well as energy evolution characteristics for rockburst
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Size effect of mechanical characteristics of sandstone and granite ...
2023.6.29 2. The size of cubic rock samples also has a significant influence on the uniaxial compressive strength. The uniaxial compressive strength of granite decreases linearly with the increase in size by up to 35%, showing an apparent size effect. The uniaxial compressive strength of sandstone increases linearly with the increase of its size by 12%. 3.
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Dynamic properties of granite rock employed as coarse
2021.10.1 Granite rock is widely distributed throughout the world, and there are large variations in the mechanical properties of granite extracted from various places – for example, the granite from the Tarim area of Xinjiang Province, China, has a static uniaxial compressive strength slightly less than 100 MPa [9]; however, granite from the ...
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Damage Characteristic of Thermal Shock on the Physical and
2022.4.19 Thermal shock is common in fire disaster and blasting of rock engineering; moreover, the rock mass bears dynamic mechanical disturbance frequently. In order to study the damage characteristics of thermal shock on physical and dynamic compressive properties, the thermal shock damage of granite treated to different temperatures at
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Application of machine learning in predicting the rate
2022.10.1 Thus the RF-based model with five input parameters was adopted, except the static compressive strength, to further discuss the rate dependence of rock strength following the procedure in Fig. 2. This model considers a series of fine-grained sandstone specimens ( Yu et al., 2021 ) with the same aspect ratio and three different specimen
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Frontiers Strain rate effects on characteristic stresses and
2022.7.12 In order to further investigate the strain rate effects on characteristic stresses and acoustic emission parameters of rock under quasi-static compression, uniaxial compressive tests were conducted on cylindrical specimens measuring 50 mm in diameter and 100 mm in height using a rock material testing machine and a multi-channel acoustic
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2018.8.28 Variation in the heating rate due to different geothermal gradients is a cause of much concern in underground rock engineering such as deep sea and underground tunnels, nuclear waste disposal, and deep mining. By using a split Hopkinson pressure bar (SHPB) and variable-speed heating furnace, the dynamic compressive properties of
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