Results 11 to 20 of about 3,961,642 (152)
, 2019 This chapter discusses the origin of discontinuities and explain how to identify and measure them in the field. It also discusses the effect of discontinuities on the rock mass properties of sandstone, mudstone and andesite at the project site. Joint spacing is defined as the perpendicular distance between the two neighboring joints.
Gratchev, Ivan, Ivan Gratchev
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The noncontact determination technique research of dangerously loaded zones in the underground mining [PDF]
E3S Web of Conferences, 2019 The electromagnetic radiation signals associated with the destruction of rock samples were studied under field and laboratory conditions. The parameters of the signal were found that preceded the violation of the integrity of the rock in laboratory ...
Bizyaev Aleksey +3 more
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Progressive failure and friction motion characteristics of contact surface of composite rock mass [PDF]
E3S Web of Conferences, 2021 The structural planes existing in natural rock mass can control the failure process of rock mass. Based on the progressive response-stability failure process of a single fracture interface, the relationship between progressive response and material ...
Jinhai Zhao +3 more
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Engineering geological studies for empirical design of tunnel 7 of Jakarta - Bandung high-speed railway, Indonesia [PDF]
E3S Web of Conferences, 2021 The empirical design of tunnel 7 of the Jakarta-Bandung high-speed railway was based on the Basic Quality (BQ) system, which was the Chinese standard of rock mass classification.
Pramono Riski +2 more
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MODELLING ROCK MASS IMPROVEMENT USING ROCK BOLTS
Acta Polytechnica CTU Proceedings, 2017 Anchor support currently represents a significant reinforcing technique in underground constructions. The principles of rock bolt reinforcement action are derived from various concepts of the underground excavation stability.
Jan Pruška
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Engineering Gology Model of Bener Dam Diversion Tunnels in Geological Risk Disaster Mitigation
JGE, 2020 The Bener Dam Diversion Tunnel Plan is located in Bener District, Purworejo Regency. Engineering geology mapping data, drillimg data and laboratory data used as primary data.
Daru Jaka Sasangka +2 more
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Advances in Civil Engineering, 2023 In mountainous areas, dangerous rock mass collapse is a serious threat to human life and property safety. However, how to effectively prevent and control the instability of dangerous rock mass is still an urgent unsolved problem.
Xiaoyong Zhang +6 more
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Alexandria Engineering Journal, 2022 The mechanical indices used to describe the anisotropy of layered rock mass are numerous and difficult to be measured. Take the medium - thick horizontal layered limestone rock mass as an example, rock mechanical tests, engineering geological survey ...
Xianmin Han +3 more
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Geofluids, 2022 During downward mining of a bifurcated coal seam, the roof of the lower coal seam is relatively broken and difficult to control due to the mining influence of the upper coal seam.
Ru Hu +4 more
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The characterisation and analysis of in-situ and blasted block-size distributions and the blastability of rock masses. [PDF]
, 1997 PhDIn this thesis, previous research on discontinuity geometry, in-situ block size distribution (IBSD), blasted block size distribution (BBSD), and blastability of rock mass is discussed.
Lu, Ping
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