Results 1 to 10 of about 34,874 (212)

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, Quan Jiang, Chongjin Li
exaly   +3 more sources

Spalling characteristics of high-temperature treated granitic rock at different strain rates

Journal of Rock Mechanics and Geotechnical Engineering
The dynamic spalling characteristics of rock are important for stability analysis in rock engineering. This paper presented an experimental investigation on the dynamic spalling characteristics of granite with different temperatures and strain rates.
Lifeng Fan
exaly   +3 more sources

Research on bending-slip rib spalling and rib stability of extra-thick hard coal wall [PDF]

Scientific Reports
In 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, Yan Shang, Chen Wang, Feitian Zhang, Yunfei Liu   +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, Alireza Abbaszadeh, Masood Yahyai   +2 more
doaj   +1 more source

Dynamic Characteristics and Fault Mechanism of the Gear Tooth Spalling in Railway Vehicles under Traction Conditions

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, Junbo Li, Peixuan Chen, Yongjie Su, Jinhai Wang   +4 more
doaj   +1 more source

Back-Analysis of Rock Mass Strength at a Radioactive Waste Disposal Site Using Acoustic Emission Monitoring Data and 3D Numerical Modelling

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, Matthew A. Perras, István Szűcs, Ákos Török   +3 more
doaj   +1 more source

Development of an Estimation Method for Depth of Spalling Damage in Concrete Pavement by Ultrasonic Velocity Measurement

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, Hojun Yoo, Sungjin Hong, Jeongyeon Cho, Intai Kim   +4 more
doaj   +1 more source

A STUDY OF SPALLING [PDF]

Journal of the American Ceramic Society, 1921
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Howe, Raymond M., Ferguson, Robert F.
openaire   +2 more sources

Estimation of spalling properties of wall surface based on time frequency analysis of hammering sound

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

Potential dopant in photocatalysis process for wastewater treatment-a review [PDF]

, 2021
Nowadays, too much pollution has happened around us, and one of them is water pollution, which each day has become more severe and worse. One of the sources of water pollution comes from the industry that has used dyes either excessively or not.
Ajmal, Asahi, Avasalara, Behnajady, Caratto, Danqi, Darzi, Darzi, Devi, Devi, Ferreira, Gao, Gomes, Hanaour, Harikumar, Huang, Huang, Koel, Lefu, Lindgren, Lindgren, Muqing, Prabu, Shivaraju, Shivaraju, Sitthichai, Wang, Wang, Wetchakun, Xu, Yang, Zhou   +31 more
core   +1 more source