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Prospects for Further Rock Cutting Mechanisms Development [PDF]
, 2015 In this research power rock cutting mechanisms are considered. Impact and vibratory impact mechanisms are presented, their design characteristics are given.
Novoseltseva, Maria Viktorovna +1 more
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Generalized equation for calculating rock cutting efficiency by pulsed water jets
Journal of Rock Mechanics and Geotechnical Engineering, 2019 One of the promising methods for rock cutting technology is the use of high-speed water jets. In order to improve the cutting capacity of water jets without increasing the hydraulic power of equipment, pulsed water jets are basically used to increase the
Andrey Polyakov +3 more
doaj +1 more source
Investigation of the Cross-Cutting Polycrystalline Diamond Compact Bit Drilling Efficiency
Shock and Vibration, 2021 The parallel track scraping principle of conventional PDC bits largely limits the cutting efficiency and working life in deep formations. Cross-cutting polycrystalline diamond compact (PDC) bit may be an efficient drilling tool that increases the rock ...
Chun-Liang Zhang +5 more
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Comptes Rendus. Mécanique, 2023 Rock cutting methods for disc cutters with coupled static–dynamic loads and static loads are explored and compared through rock breaking experiments to improve the TBM excavation efficiency.
Lin, Laikuang +4 more
doaj +1 more source
Experimental study on coal rock recognition based on infrared thermal imaging and vibration signals
Gong-kuang zidonghuaIn response to the difficulties in practical application, susceptibility to signal interference, high cost, and complex implementation of existing coal rock recognition technologies, this paper theoretically analyzes the relationship between coal rock ...
LIU Zhixiang +3 more
doaj +1 more source
IEEE Access, 2016 The cutting efficiency in underground excavations relies on the optimum parameters of the cutting tool and the cutting process. However, the optimization of the cutting tool design and the cutting process is a challenge and requires knowledge about the ...
Xuefeng Li +4 more
doaj +1 more source
Geological features and marble production qualities of Western Turkey [PDF]
, 2019 Purpose. Isparta Angle occurs along the Mesozoic carbonate axis. Carbonated rocks forming the Taurus belt are continuous with allochthonous and autochthonous features.
Leventeli, Y, Ozcelik, M
core +1 more source
Advances in Materials Science and Engineering, 2018 To investigate the specific energy consumption (SE) of rock breakage by cutting heads assisted by different types of waterjet and to identify optimal waterjet parameters and assistance types, rock cutting with and without waterjets was carried on a rock ...
Hongxiang Jiang, Deguang Meng
doaj +1 more source
Energy Science & Engineering, 2022 Combining well‐drilling hammers with polycrystalline diamond compact bits to break rock under cutting load and impact load is an effective way to improve drilling efficiency.
Heng Zhang +6 more
doaj +1 more source
Full and half-wavelength ultrasonic percussive drills [PDF]
, 2018 Ultrasonic-percussive drills are a leading technology for small rock drilling applications where power and weight-on-bit are at a premium. The concept uses ultrasonic vibrations to excite an oscillatory motion in a free-mass, which then delivers ...
Harkness, Patrick +2 more
core +1 more source