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Document Type |
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Article In Journal |
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Document Title |
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Assessing the Potential of In-Gallery Seismic Shots in Exploring Buried Structures of ‘Ain Zubaidah Using Acoustic Wavefield Modeling تقييم الجهد في طلقات معرض الزّلزاليّة في استكشاف الأبنية المدفونة لعين زبيدة باستخدام عرض أزياء وافيفيلد سمعيّ |
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Subject |
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Assessing the Potential of In-Gallery Seismic Shots in Exploring Buried Structures of ‘Ain Zubaidah Using Acoustic Wavefield Modeling |
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Document Language |
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English |
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Abstract |
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A numerical modeling approach, approximating the solution
of the 2-D heterogeneous, acoustic wave equation with second-order
accuracy in both time and space, is utilized to unravel the hidden
potential of the in-gallery seismic shooting technique as an effective
tool in accurately locating buried shafts (Karez), as well as gallery
routes, of ‘Ain Zubaidah, Makkah Al Mukarramah area, Kingdom of
Saudi Arabia.
Numerical models indicated that gallery routes could vividly be
delineated as conspicuous, high amplitude reflections and that should
equally be true for deeper galleries because of the high S/N ratio of
seismic wave energy generated by in-gallery seismic shots. This
should provide an accurate and cost-effective tool for exploring
relatively wide areas.
Although these findings should be applicable to similar
geological problems, even in subsurface structures characterized by
velocity inversions, a word of caution, however, is that they are
applicable only to air-filled or slightly water-filled galleries. This
situation should change when ground water level increases during
rainy seasons, where the velocity of loose saturated sediments should
at a minimum be around that of water (1500 m/sec), masking their
presence. This is also true for shafts inundated in ground water.
Accordingly, the season when to carry field surveys is important in
gaining similar success in other areas |
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ISSN |
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1012-1319 |
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Journal Name |
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Science Journal |
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Volume |
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19 |
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Issue Number |
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1 |
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Publishing Year |
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1429 AH
2008 AD |
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Article Type |
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Article |
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Added Date |
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Tuesday, February 15, 2011 |
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Researchers
| طلال مختار | mukhtar, talal | Researcher | Doctorate | |
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