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ISSN: 1682-3222

Volume18, Issue1

2-D Seismic Refraction Tomography for Site Investigation of the Teaching Hospital Project at Mosul University

    Nabil H. AL- Saigh Ahmed J. AL-Heety

Iraqi National Journal of Earth Sciences, 2018, Volume 18, Issue 1, Pages 77-86

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Abstract

The study includes seismic refraction tomography, along 12 traverses with a total area of 35140m2, for the Teaching Hospital Project at Mosul University. The aim of the study was to detect the thickness and types of the different subsurface layers. The survey conducted by the Swedish ABEM Terraloc Instrument. The data processed and presented as tomography sections by SeisImager/2D Program Packages. The study shows the presence of three different subsurface layers. The first layer represents the topsoil layer having velocity ranges between (350 m/sec-700 m/sec), and thickness up to 3.2m. The second layer having velocity ranges between 840-1700m and thickness between (3m-14.7m), mostly representing the river deposits, composed specially of river terraces and clays. The third layer was having velocity ranges between (1900 m/sec-2800 m/sec) and depth ranges between (3.0m-17.9m) representing the hard bed, which is mostly composed of marl layers belong to the upper part of Fat’ha Formation.تضمنت الد ا رسة إج ا رء مسح زل ا زلي انكساري تصويري لمشروع المستشفى التعميمي في جامعة الموصؿ
عمى امتداد 12 مسا ا رً بمساحة إجمالية مقدارىا 35140 متر مربع. اليدؼ مف المسح الزل ا زلي ىو الكشؼ
عف نوعية وسمؾ الطبقات الصخرية وامتدادىا. ت المسح بوساطة جياز ) ABEM Terraloc Mk6 )
السويدي الصنع وتمت معالجة البيانات الحقمية وتمثيميا باستخدا مجموعة برنامج SeisImager™ /2D
لعمؿ مقاطع تصويرية (Tomography) لمطبقات تحت السطحية. بينت نتائج المسح الزل ا زلي الانكساري
وجود ثلاث طبقات في منطقة الد ا رسة . الطبقة الأولى تمثؿ طبقة مف الترب السطحية والتي تمتمؾ سرعة
زل ا زلية تت ا روح بيف) 350 /ثا 700 /ثا ( وسمؾ يصؿ إلى ) 3.2 ( - ، والطبقة الثانية تمتمؾ سرعة زل ا زلية
- تت ا روح بيف ) 840 1700 /ثا( وسمؾ يت ا روح بيف ) 3 - 3 14.7 ( وىي عمى الأغمب تمثؿ طبقة مف
الترسبات النيرية (River deposits) والمتكونة بصورة خاصة مف المدممكات النيرية (River terraces)
والمواد الطينية. أما الطبقة الثالثة فتمتمؾ سرعة زل ا زلية تت ا روح بيف) 1900 /ثا 2800 /ثا ( وعمؽ يت ا روح -
بيف ) 17.9 3.0 (، وىي الطبقة الصمبة والتي ىي عمى الأغمب طبقة مف صخور المارؿ العائدة إلى -
الجزء العموي مف تكويف الفتحة.
Keywords:
    seismic refraction tomography Site Refraction Inversion Imaging
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(2018). 2-D Seismic Refraction Tomography for Site Investigation of the Teaching Hospital Project at Mosul University. Iraqi National Journal of Earth Sciences, 18(1), 77-86.
Nabil H. AL- Saigh ; Ahmed J. AL-Heety . "2-D Seismic Refraction Tomography for Site Investigation of the Teaching Hospital Project at Mosul University". Iraqi National Journal of Earth Sciences, 18, 1, 2018, 77-86.
(2018). '2-D Seismic Refraction Tomography for Site Investigation of the Teaching Hospital Project at Mosul University', Iraqi National Journal of Earth Sciences, 18(1), pp. 77-86.
2-D Seismic Refraction Tomography for Site Investigation of the Teaching Hospital Project at Mosul University. Iraqi National Journal of Earth Sciences, 2018; 18(1): 77-86.
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Publisher: Mosul University

Email:  iraqijournal@yahoo.com

Editor-in-chief: Professor Dr. Farouk Sinallah Al-Omari

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