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Wear of polycrystalline rock-breaking tool
Russian Engineering Research, 2017An improved method is proposed for assessing cutter wear in the certification of rock-breaking tools.
G. V. Borovskii +4 more
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Arabian Journal for Science and Engineering, 2021
As a new tool of hard rock breaking, abrasive slurry jet (ASJ) is of great potential in tunneling and mining. Therefore, this paper presents a new system, shearer drum assisted by ASJ, to exploit thin seam with complex geology, in which coal rock will be broken by the coupled forces of ASJs and cutting picks.
Wang Fengchao +4 more
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As a new tool of hard rock breaking, abrasive slurry jet (ASJ) is of great potential in tunneling and mining. Therefore, this paper presents a new system, shearer drum assisted by ASJ, to exploit thin seam with complex geology, in which coal rock will be broken by the coupled forces of ASJs and cutting picks.
Wang Fengchao +4 more
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Science, 2006
Contrary to common perception, the breaking of rocks is usually not caused by the expansion of water upon freezing.
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Contrary to common perception, the breaking of rocks is usually not caused by the expansion of water upon freezing.
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High-prequency electrothermal rock breaking
Soviet Mining Science, 19681. Rocks of the second and fourth groups [above] are those most favorable for high-frequency electrothermal breakage. 2. To break rocks of the third group, it is necessary to build a plant with parameters enabling the generator to be matched with the load. 3.
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Energy of rock breaking in percussive drilling
Soviet Mining Science, 19801. The volumetric rate of widening boreholes with the aid of pneumopercussive reamers is 2.5–4.0 times greater than the volumetric rate of drilling by the series-produced M48, MP-3, and M32K pneumatic drills; this is due both to the higher power of the reamers and to the different rock-fracture conditions (shape of face, geometry of bit ...
N. A. Belyaev, N. N. Esin
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Acta Mechanica Sinica, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Zhao-Huang, Sun, Fei
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Zhao-Huang, Sun, Fei
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An investigation into rock breaking by direct impact
Mining Science and Technology, 1987Abstract An empirical approach towards analysis of rock breaking under direct impact and laboratory conditions is suggested utilizing limestone and concrete blocks. Characteristics and mechanism of rupture in the test blocks are discussed. It is found that the effect of reflected shock waves is less significant than that of the stress relief in ...
A. Afrouz, F.P. Hassani
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RESEARCH ON DIAMOND ROCK BREAKING TOOLS
This scientific article focuses on the importance of diamond drilling in the mining industry and its impact on the efficiency of rock breaking processes. The work provides an overview of the classification of rock-breaking tools (RBT) depending on drilling types and rock-breaking principles, offering a wide range of tools for various geological ...Kitkin D., Smashov N.
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ECOLOGICALLY PURE PLASMA METHOD ROCK BREAKING
Proceeding of Progress in Plasma Processing of Materials, 2001, 2023V.I. Emeljanenko, S.U. Makeev
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