The collision experiment between rolling stones of different shapes and protective cushion in open-pit mines
| العنوان: | The collision experiment between rolling stones of different shapes and protective cushion in open-pit mines |
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| المؤلفون: | Murat Karakus, Xiao-hu Zhang, Manchao He, Zhen Guo, Chun Zhu |
| المصدر: | Journal of Mountain Science. 18:1391-1403 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Global and Planetary Change, 010504 meteorology & atmospheric sciences, business.industry, Geography, Planning and Development, Open-pit mining, Geology, 010502 geochemistry & geophysics, Collision, 01 natural sciences, Laboratory test, Cushion, Particle diameter, Particle, Geotechnical engineering, Particle size, business, Orthogonal array testing, 0105 earth and related environmental sciences, Nature and Landscape Conservation, Earth-Surface Processes |
| الوصف: | Though gravel cushions are used worldwide in open-pit mines and railway slopes to control the impact of rolling stones, no universal technical standards have been put in place to guide engineers in their correct design, and few laboratory test results are available with which to characterize collisions between rolling stones and a gravel cushion. We carried out a large number of experiments in which rolling stones made of the same material but differently shaped were dropped from various heights onto cushions with various particle sizes and thicknesses. We investigated the characteristics of the resulting collisions, and the relationships between coefficients of restitution (CORs) of blocks with different shape and release height H, cushion thickness h and particle diameter d are obtained through linear fitting method. Orthogonal testing reveals the relative influence of block shape, release height, and the particle size and thickness of the cushion on the collision characteristics, which can assist engineers in designing a gravel cushion suitable to the distribution and weathering characteristics of rolling stones in a specific area. |
| تدمد: | 1993-0321 1672-6316 |
| DOI: | 10.1007/s11629-020-6380-0 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a223296594eda6a73b9e465aee8199d2 https://doi.org/10.1007/s11629-020-6380-0 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........a223296594eda6a73b9e465aee8199d2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19930321 16726316 |
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| DOI: | 10.1007/s11629-020-6380-0 |