Zobrazeno 1 - 10 of 22 pro vyhledávání: '"Yonathan Admassu"'
1
Improved Automated Mapping of Sinkholes Using High-Resolution DEMs
Autor: Yonathan Admassu, Celestine Woodruff
Publikováno v: Environmental and Engineering Geoscience. 27:331-351
Sinkholes are common surface manifestations of the presence of networks of subsurface caverns in areas where the bedrock geology is dominated by soluble rocks such as limestones. Accurate mapping of sinkholes is crucial as they are hazardous to trans
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f24f2cfba4f65bc42826ccf626d440f
https://doi.org/10.2113/eeg-d-20-00081
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2
Digital Surface Model-aided Quantitative Geologic Rockfall Rating System (QG-RRS)
Autor: Yonathan Admassu
Publikováno v: Environmental and Engineering Geoscience. 25:255-271
Rockfalls are one of the most common types of slope failures that affect cut slopes along roadways in mountainous regions. The Rockfall Hazard Rating System (RHRS), started in Oregon and adopted by various U.S. states, is used to rate cut slopes with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5224a28c98453643fac19ab06c04b2c
https://doi.org/10.2113/eeg-2102
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6
Using Google Earth and Google Street View To Rate Rock Slope Hazards
Autor: William Swanger, Yonathan Admassu
Publikováno v: Environmental and Engineering Geoscience. 24:237-250
Rockfall hazard from cut slopes along highways are caused primarily by unfavorable orientations of discontinuities, presence of unconsolidated cobble/boulder deposits, undercutting of strong rocks by weaker rocks, or degradation of weak rock masses.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0d8b16ce0044d4ee7e3cb03f87c719a
https://doi.org/10.2113/eeg-1922
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7
A Durability-Based Approach for Designing Cut Slopes in Weak Rock Units in Ohio
Autor: Yonathan Admassu, Abdul Shakoor
Publikováno v: Environmental & Engineering Geoscience. 22:279-296
Seven cut slope sites along Ohio highways containing thick (>10 ft/3.3 m) units of weak rocks (shales, claystones, and mudstones) were selected for investigating slope stability problems and developing design recommendations. Stability problems affec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dff1f92a5038039256e0d5fac22154a2
https://doi.org/10.2113/gseegeosci.22.4.279
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8
Multivariate statistical approach to re-evaluate the slake durability index test (ASTM 4644–08)
Autor: Tej P. Gautam, Hasan Hamdan, Yonathan Admassu
Publikováno v: Engineering Geology. 209:12-20
The slake durability index test is designed to quantify durability of mainly weak rocks. The test is basically tumbling 10 pieces of rocks each weighing 40–60 g for a two ten minute cycles in a water submerged mesh drum (2 mm mesh size). Second cyc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4e425e9e14a781fc3b412e653d58b30
https://doi.org/10.1016/j.enggeo.2016.05.004
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