Results 1 to 10 of about 34,422 (242)
Research on bending-slip rib spalling and rib stability of extra-thick hard coal wall [PDF]
Scientific ReportsIn response to the frequent occurrence of coal face spalling affecting the working face production during the mining of extra-thick hard coal seams, this study investigates the characteristics of typical hard coal face damage.
Bo Xue +4 more
doaj +2 more sources
Numerical investigation of the behavior of HSC columns in fire [PDF]
Numerical Methods in Civil Engineering, 2022 This paper numerically investigates the fire resistance of HSC columns under the ISO-834 standard fire curve. Due to its complexity, concrete behavior is mainly evaluated using experimental testing.
Amir Pournosrat +2 more
doaj +1 more source
Applied Sciences, 2023 Gear tooth spalling is one of the inevitable fault modes in the long-term service of the traction transmission system of railway vehicles, which can worsen the dynamic load of the rotating mechanical system and reduce the operating quality. Therefore, it
Yunlei Lin +4 more
doaj +1 more source
Energies, 2023 In this study, a new method was examined that used acoustic emission (AE) monitoring data, in combination with a primary Boundary Element stress analysis, to back-calculate rock mass strength.
Ferenc Deák +3 more
doaj +1 more source
Applied Sciences, 2022 As the amount of aged pavement increases, functional damage, such as spalling, occurs frequently on Portland Cement Concrete pavement (PCC) in South Korea.
Gyumin Yeon +4 more
doaj +1 more source
Spalling failure of deep hard rock caverns
Journal of Rock Mechanics and Geotechnical Engineering, 2023 Spalling is a typical brittle failure phenomenon of hard rock in deep caverns under high geostress. In this study, key issues are systematically studied concerning the spalling failure of deep hard rock caverns.
Guoshao Su +4 more
doaj +1 more source
Measurement: Sensors, 2021 In this report, we focused on the diagnosis of wall spalling in condominiums, etc., and tried to estimate the size and shape of spalling by analyzing the hammering sound based on the power spectrum. In particular, we confirmed that the frequency at which
Yuto Kitamura, Jun-ya Takayama
doaj +1 more source
Acta Polytechnica CTU Proceedings, 2022 The performance of concrete tunnel structures during and after fire is not well understood. This is an obstacle to the adoption of risk-based approaches for fire safety design of tunnel structures.
Ruben Van Coile +4 more
doaj +1 more source
Fire spalling sensitivity of concrete made with recycled concrete aggregates (RCA)
Acta Polytechnica CTU Proceedings, 2022 The fire spalling of concrete is a complex phenomenon, which can affect the integrity of the structures during a fire. This thermal instability is associated with a complex coupled chemo-thermo-hydro-mechanical mechanism and it can be influenced by many ...
Bruno Fernandes +4 more
doaj +1 more source
The behaviour of reinforced concrete slabs in fire [PDF]
, 2010 In this paper a robust model is presented based on the previous layer procedure developed by the author to also take into account the effects of concrete spalling on the behaviour of concrete slabs under fire conditions.
Ali +14 more
core +1 more source