International journal of mining science and technology
IF
3.90
Papers
1214
Papers 1339
1 page of 134 pages (1,339 results)
Newest
#1Wei Yao (TJU: Tianjin University)
#2Ying Xu (TJU: Tianjin University)H-Index: 6
Last. Mikko HokkaH-Index: 15
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Abstract null null The shear failure of rocks under both a static triaxial stress and a dynamic disturbance is common in deep underground engineering and it is therefore essential for the design of underground engineering to quantitively estimate the dynamic Mode Ⅱ fracture toughness KⅡC of rocks under a triaxial stress state. However, the method for determining the dynamic KⅡC of rocks under a triaxial stress has not been developed yet. With an optimal sample preparation, the short core in comp...
1 CitationsSource
#1Shucai Li (SDU: Shandong University)H-Index: 28
#1Li Shucai (SDU: Shandong University)
Last. Zhang Huasheng (SDU: Shandong University)
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Abstract null null Grouting is the most commonly used method to control water inrush in underground engineering. Traditional cement-based materials are easy to dilute and hard to coagulate under the influence of large flow and high-velocity water inrush. To address these deficiencies, a new type of polymer grouting material with an excellent expansion ratio was synthesised. The material quickly absorbs water and has an expansion ratio of 1:300. The material is composed of a superabsorbent polyme...
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Abstract null null As per most other earth science engineering problems, the underground coal geotechnical environment and the way in which roof and rib support interacts with the rock mass are complex issues. It is therefore generally recognised that without prudent simplification, the complexity of the problem will overwhelm all current geotechnical methods of modelling, not least for the reason that a rock mass can never be characterised to a level that allows a “non-simplified” analysis. The...
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#1Jianjun Hu (Sichuan University)
#2Heping Xie (SZU: Shenzhen University)H-Index: 45
Last. Guikang Liu (Sichuan University)
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Abstract null null During the development of hot dry rock, the research on thermal fatigue damage caused by thermal shock of cold and heat cycles is the basis that ensures the long-term utilization of geothermal resources, but there are not enough relevant studies at present. Based on this, the thermal damage tests of granite at different temperatures (250, 350, 450 °C) and quenching cycles (1, 5, 10, 15 cycles) were carried out. Preliminary reveals the damage mechanism and heat transfer law of ...
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#1Xin Wang (CUMT: China University of Mining and Technology)H-Index: 3
#2Zhimin Xu (CUMT: China University of Mining and Technology)H-Index: 3
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Abstract null null As a new technical means that can detect abnormal signs of water inrush in advance and give an early warning, the automatic monitoring and early warning of water inrush in mines has been widely valued in recent years. Due to the many factors affecting water inrush and the complicated water inrush mechanism, many factors close to water inrush may have precursory abnormal changes. At present, the existing monitoring and early warning system mainly uses a few monitoring indicator...
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#1Jian Zhou (CSU: Central South University)H-Index: 140
#2Chao Chen (CSU: Central South University)H-Index: 2
Last. Manoj Khandelwal (FedUni: Federation University Australia)H-Index: 31
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Abstract null null Coal burst is a severe hazard that can result in fatalities and damage of facilities in underground coal mines. To address this issue, a robust unascertained combination model is proposed to study the coal burst hazard based on an updated database. Four assessment indexes are used in the model, which are the dynamic failure duration (DT), elastic energy index (WET), impact energy index (KE) and uniaxial compressive strength (RC). Four membership functions, including linear (L)...
6 CitationsSource
#1Chenlong Duan (CUMT: China University of Mining and Technology)H-Index: 20
#2Jiale Yuan (CUMT: China University of Mining and Technology)
Last. Lu Jiawang (CUMT: China University of Mining and Technology)
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Abstract null null Traditional vibrating screen usually adopts the linear centralized excitation mode, which causes the difficulty in particles loosening and low screening efficiency. The variable elliptical vibrating screen (VEVS) trajectory is regulated to adapt the material mass along the direction of the screen length, improving the particles distribution as well as the screening efficiency. In this work, a theoretical model was developed for analyzing the screen surface motion law during VE...
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#1Heonmoo Kim (Pukyong National University)H-Index: 2
#2Yosoon Choi (Pukyong National University)H-Index: 22
Abstract null null In this study, a machine vision-based pattern matching technique was applied to estimate the location of an autonomous driving robot and perform 3D tunnel mapping in an underground mine environment. The autonomous driving robot continuously detects the wall of the tunnel in the horizontal direction using the light detection and ranging (LiDAR) sensor and performs pattern matching by recognizing the shape of the tunnel wall. The proposed method was designed to measure the headi...
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#1Jinpeng Cai (Kunming University of Science and Technology)H-Index: 1
#2Shen Peilun (Kunming University of Science and Technology)H-Index: 3
Last. Han Wang (Kunming University of Science and Technology)
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Abstract null null In this work, the growth of copper sulfide crystal onto azurite surfaces during sulfurization and its response to flotation are investigated. Filed emission scanning electron microscopy-energy dispersive X-ray spectroscopy (FESEM) and X-ray diffraction (XRD) studies confirmed that the sulfurization of azurite is not limited to the mineral surface, but rather penetrates into the bulk to form covellite crystal (syn-CuS), creating favorable conditions for the stable adsorption of...
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#1Bo Chen (WUT: Wuhan University of Technology)H-Index: 5
#2Shenxu BaoH-Index: 1
Last. Yimin ZhangH-Index: 1
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Abstract null null The effect and mechanism of ultrasound and CaF2 on vanadium leaching from vanadium-bearing shale were investigated systematically. In consideration of the enhancement for vanadium recovery, the combination of ultrasound and CaF2 (66.28%) exerts more evident effects than ultrasound (26.97%) and CaF2 (60.35%) alone, demonstrating the synergetic effect of ultrasound and CaF2. Kinetic analysis manifests that the product layer diffusion controls vanadium leaching in ultrasound syst...
2 CitationsSource
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