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A proposed geotechnical-based method for evaluation of liquefaction potential analysis subjected to earthquake provocations (case study: Korzan earth dam, Hamedan province, Iran)

اقتراح الطریقة الجیوتکنیکیه فی تقییم افتقاد الاثر الزلزال فی القوة السیولیة (الدراسة النموذجیه: سد کرزان الترابی، محافظه همدان، ایران)

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Abstract

During the earthquakes, a number of earth dams have had severe damages or suffered major displacements as a result of liquefaction, thus modeling by computer codes can provide a reliable tool to predict the response of the dam foundation against earthquakes. These modeling can be used in the design of new dams or safety assessments of existing ones. In this paper, on the basis of the field and laboratory tests and by combination of several software packages a seismic geotechnical-based analysis procedure is proposed and verified by comparison with computer model tests and field and laboratory experiences. Verification or validation of the analyses relies to the ability of the applied computer codes. By using the Silakhor earthquake (2006, M s 6.1) as a basis in order to check the efficiency of the proposed framework, the procedure is applied to the Korzan earth dam of Iran which is located in Hamedan Province to analyze and estimate the liquefaction and safety factor. Design and development of a computer code by the authors which was named as the “Abbas Converter” with graphical user interface which operates as logic connecter function that can compute and model the soil profiles is the critical point of this study. The results confirmed and proved the ability of the generated computer code on the evaluation of soil behavior during earthquake excitations. Also, this code was able to facilitate this study better than previous ones have, taking over the encountered problem.

خلاصة

تعرض الكثير من السدود بسبب السیوله الناتج عن الزلازل إلى أضرار خطيرة أو إلى تحركات رئيسية، لذلك فإن إعداد النماذج الحاسوبية يمكن أن يكون وسيلة يُعتمد عليها لتوقع استجابة البناء السد أمام الزلازل.

هكذا نماذج مُعَدة يمكن أن تُستخدم في تصميم السدود الجديدة أو تقدير مدى سلامة السدود الموجودة. في هذه المقالة تم اقتراح طريقة تحليل جيوتقنية على أساس حقول التجارب و المختبرات و تركيب عدة برامج و التي تم الموافقة عليها بالمقارنة مع نماذج الاختبارات الحاسوبية و النتائج الميدانية و المخبرية.

تتعلق الموافقة و صحة التحليل بقدرة الرموز الحاسوبية المستخدمة. من خلال استخدام زلزال سبلخور (Ms6.1, 2006) و بهدف دراسة كفاءة الإطار المطروح، فقد تم تنفيذ الطريقة المطلوبة بشأن سد كرزان الترابي في محافظة همدان لأجل تحليل و تخمين السیوله و عامل الأمان.

إن طرح و تطوير رمز حاسوبي من قبل المؤلغين تحت اسم Abbas Converter” بصفحة جرافيكية تعمل كواصل و العامل منطقي و تستطيع أن تحسب و تعد النماذج للتربة، نقطة العطف في هذه الدراسة هي أن النتائج الحاصلة أثبتت و أكدت بأن قدرة الرموز الحاسوبية المنتجة في تقييم سلوك التربة تحت اهتزاز التربة. كذلك البرنامج المنتج، قد سهل كل ذلك كثيراً الدراسات الحالية مقارنة بالنسبة للدراسات السابقة حيث يمكن التغلب على الصعاب فيها.

الكلمات المفتاحية: تحليل السیوله ، سد كرزان الترابي، “Abbas Converter”، زلزال سيلخور

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Authors and Affiliations

  1. Academic staff of Islamic Azad University, Hamedan Branch, Hamedan, Iran

    Abbas Abbaszadeh Shahri

  2. Engineering Faculty of Tehran University, Tehran, Iran

    Bijan Esfandiyari

  3. Islamic Azad University, Hamedan Branch, Hamedan, Iran

    Roshanak Rajablou

Authors
  1. Abbas Abbaszadeh Shahri
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  2. Bijan Esfandiyari
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  3. Roshanak Rajablou
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Correspondence to Abbas Abbaszadeh Shahri.

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Shahri, A.A., Esfandiyari, B. & Rajablou, R. A proposed geotechnical-based method for evaluation of liquefaction potential analysis subjected to earthquake provocations (case study: Korzan earth dam, Hamedan province, Iran). Arab J Geosci 5, 555–564 (2012). https://doi.org/10.1007/s12517-010-0199-x

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