Results 1 to 10 of about 1,062 (116)
International Journal of Mining Science and Technology, 2020 Four groups of numerical models of Brazilian tests on rock-shotcrete interfaces were successfully conducted by PFC2D. The tensile strength and Young’s modulus of shotcrete were considered. Six different undulations of rock-shotcrete interface were set up.
Jiadong Qiu, Lin Luo, Xibing Li
exaly +3 more sources
Study on the degradation mechanism and performance improvement of coal gangue-based shotcrete under high-salt dry-wet cycling conditions in underground mining environments [PDF]
Science ProgressThe shotcrete lining in the underground water sumps of the Shen Dong coal mine in western China has been subjected to long-term exposure to harsh environmental conditions, including repeated dry-wet cycles and high salinity.
Hailei Wu +7 more
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Assessment of mechanical behavior of sprayed concrete reinforced with waste tire textile fibers [PDF]
Scientific ReportsThe primary objective of this research is to assess the mechanical properties of shotcrete or sprayed concrete reinforced with waste tire textile fibers (WTTFs).
Behzad Khosh, Hadi Atapour
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The effect of basalt fiber addition on cement concrete: A review focused on basalt fiber shotcrete
Frontiers in Materials, 2022 Basalt fiber, as a natural silicate fiber, has excellent engineering performance in high and low temperature resistance, high fracture strength, toughness, shear and elastic modulus in nature.
Qianqian Liu +5 more
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Shock and Vibration, 2021 Shotcrete is often subject to poor ductility and cracking problems, particularly under high stresses. In order to deal with these issues, the feasibility of adding polypropylene macrofibers to shotcrete was verified.
Fenghui Li +4 more
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Mechanical Properties and Microstructure of Shotcrete under High Temperature
Applied Sciences, 2021 High temperature is recognized as one of the extreme environments in the application of shotcrete which significantly deteriorate the performance of shotcrete.
Guoming Liu +4 more
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Nordic Concrete Research, 2022 Fibre-reinforced shotcrete is the most common support method for hard rock tunnels in the Nordic countries. The design of shotcrete is often based on empirical methods or simplified analytical equations, which neglect variations in mechanical properties ...
Sjölander Andreas, Ansell Anders
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Experimental study on sulfate resistance of shotcrete with different liquid accelerators
Case Studies in Construction Materials, 2022 The shotcrete used as the initial lining of tunnel was easily damaged by sulfate attack in groundwater environment. The purpose of this study was mainly to explore the deterioration and mechanism of shotcrete mixed with different liquid accelerators ...
Renhe Yang +7 more
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Irrigation channel lining using shotcrete with additives [PDF]
Нанотехнологии в строительстве, 2022 Introduction. Shotcrete lining is the most economical and quite fully mechanized in production among all the known varieties of concrete linings. The construction practice of hydraulic structures has accumulated numerous examples of the use of a wide ...
Zhangazy N. Moldamuratov +4 more
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Research Progress of Mine Shotcrete Dust Control Technology
Meikuang Anquan, 2020 Shotcrete technology, as the main mean of the new Austrian tunneling method, has been widely used in mining roadway tunneling support. Dust is unavoidable during the shotcreting process, and shotcrete dust is one of the main sources of dust in coal mines.
CHENG Weimin, LIU Guoming, CHEN Lianjun
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