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Study elementary Geological and tectonical the Dam of Deifeh

دراسة جيولوجية و تكتونية أولية لبناء سد ديفة

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 Publication date 2013
and research's language is العربية
 Created by Shamra Editor




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This search shows the lithological, petrographical and physical properties of the dam, and storage basin through rocks cors study taken from some wells in axis dam and storage lake and surface samples therefore have shaped unpenetration and penetration units. From this study discern reduction degree pored with rise positions deep far from range movement underground water and observed attachment pored grade cracs, Faults and karstic, Karstic discerned in positions (campanian, turounian) Increase Karstic caves in sinomanian positions from during tectonic cracs and naught being it in mastrichtian also action space in area dry weathering above level underground water because movement water across this cracs and vacuity. Positions geological divided in location which credence at pored to three straps (A, B, C): A)-Hard weathering strap Positions assimilate in this strap cracs dense rocks advance open cracs wobble between(3-5mm) and full of habit clay materials ,and compose dense weathering strap assimilate pored rocks and area the thick (3-6m).and advance removal it before starting in construction dam body because low resistance ,high cracs, capacity low load B) -Soft weathering strap Assimilate debris pile from split calcite rocks,and compose penetrating rocks. C) -Unpenetrating rocks strip Assimilate thick clay calcite positions from unpenetrating rocks.


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Research summary
تتناول هذه الدراسة الجيولوجية والتكتونية الخصائص الليتولوجية والبتروغرافية والفيزيائية لموقع سد ديفة في سوريا. تم تحليل العينات الصخرية المستخرجة من بعض الآبار في محور السد وبحيرة التخزين، بالإضافة إلى العينات السطحية. أظهرت الدراسة تقسيم التوضعات الجيولوجية إلى ثلاث نطاقات بناءً على النفوذية: A، B، وC. النطاق A يتميز بصخور كلسية شديدة التشقق، بينما النطاق B يحتوي على صخور كلسية مشققة وكتل منزلقة، والنطاق C يتكون من صخور كلسية متماسكة وسميكة. تم تحديد تأثير الشقوق والصدوع والكارست على نفوذية الصخور، وأوصت الدراسة بإزالة التوضعات في النطاق A قبل بناء جسم السد بسبب مقاومتها المنخفضة. كما تم تحديد الاتجاهات الرئيسية للصدوع والشقوق في المنطقة وتأثيرها على استقرار السد. توصلت الدراسة إلى أن النفوذية تقل مع زيادة العمق وبعداً عن مجال حركة المياه الجوفية، وأوصت بضرورة تنفيذ أعمال التكتيم لتقليل الفواقد المائية المتوقعة بالرشح من خلال توضعات أساس محور السد وتوضعات جوانب البحيرة.
Critical review
دراسة نقدية: تعتبر هذه الدراسة شاملة ومفصلة في تحليلها للخصائص الجيولوجية والتكتونية لموقع سد ديفة. ومع ذلك، يمكن الإشارة إلى بعض النقاط التي قد تحتاج إلى تحسين. أولاً، قد يكون من المفيد تضمين المزيد من البيانات الميدانية الحديثة لتعزيز النتائج. ثانياً، يمكن تحسين توضيح العلاقة بين النتائج الجيولوجية والتوصيات الهندسية بشكل أكثر وضوحاً. وأخيراً، قد يكون من المفيد تضمين تحليل اقتصادي لتكاليف تنفيذ التوصيات المقترحة، مما سيساعد في تقديم صورة شاملة عن الجدوى الاقتصادية للمشروع.
Questions related to the research
  1. ما هي النطاقات الجيولوجية التي تم تحديدها في الدراسة؟

    تم تقسيم التوضعات الجيولوجية إلى ثلاث نطاقات بناءً على النفوذية: A، B، وC.

  2. ما هي التوصيات الرئيسية للدراسة بشأن بناء السد؟

    أوصت الدراسة بإزالة التوضعات في النطاق A قبل بناء جسم السد بسبب مقاومتها المنخفضة، وتنفيذ أعمال التكتيم لتقليل الفواقد المائية المتوقعة بالرشح.

  3. ما هو تأثير الشقوق والصدوع على نفوذية الصخور؟

    أظهرت الدراسة أن النفوذية ترتبط بدرجة التشقق والصدوع والكارست، وتقل مع زيادة العمق وبعداً عن مجال حركة المياه الجوفية.

  4. ما هي أهمية دراسة الوضع التكتوني في موقع السد؟

    دراسة الوضع التكتوني مهمة لتحديد تأثير الصدوع والشقوق على استقرار السد ونفوذية الصخور، مما يساعد في اتخاذ الإجراءات الهندسية المناسبة لضمان سلامة السد.


References used
LEONOV,G,.Outline geology of Syria,Moscow,2000, 32-33
BUTLER,R.W,H.,SPENCER,S.,Transcurrent fault activity on the the Dead Sea transform inLebanon and its implications for plate tectonics and seismic hazard, Journal of the Geological society,London, 1997,Vol.154,757-760
BARAZANGY,M.SEBER.D.-Tectonic evolution of the northern Arabian plate in western Syria,CornellUniversity,Ithaca,New-york,U.S.A.,1998,24-26
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