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Register a new userA Study about the wear layer for some ways to the city of Damascus in terms of adherence to specifications
دراسة طبقة الاهتراء لبعض طرق مدينة دمشق من حيث التقيد بالمواصفات
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Damascus University ورقة بحثية
Publication date
2009
fields
Civil Engineering
and research's language is
العربية
Created by
Shamra Editor
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يهدف البحث إلى التحقق من التصميم و التنفيذ الجيدين للخلائط البيتومينية لطبقة الاهتراء في بعض طرق و شوارع مدينة دمشق. و قد تبين أن عددًا من الخلائط البيتومينية غير مطابقة للمواصفات القياسية لطبقات الرصف المرن للطرق من حيث التدرج الحبي و ثبات مارشال و نسبة البيتومين و التشوه مما يستدعي ضرورة أن تقوم المؤسسات التي تتعامل مع الطرق بتصميم الخلطات البيتومينية و أن يتم الإشراف على التنفيذ الجيد لها. و تمت مقارنة نتائج الجزرات التي أخذت من بعض طرق و شوارع مدينة دمشق مع نتائج الخلطات البيتومينية المصممة و المنفذة في مخبر جامعة دمشق.
This research is aimed to verify the statement of pavement structural design and construction of bituminous concrete mixture which is used on wearing layers in roads and highways in Damascus city. It's clearly found that many of these bituminous concrete mixtures were far - away from standards and specifications regards to flexible pavements such as aggregate gradations, Marshall Stability, bitumen content and Marshall flow. The role of highway statements authorities who deal with pavement design and supervise the construction is quit necessity. Finally test results of cores taken from several roads in Damascus city were analyzed and compared with the designed mix «original» test results which was done in Damascus University labs.
Artificial intelligence review:
Research summary
تتناول هذه الدراسة تحليل طبقة الاهتراء لبعض طرق مدينة دمشق من حيث التقيد بالمواصفات الفنية. قام الباحثان، الدكتور المهندس راتب سطاس والمهندسة فضيلة صادق، بإجراء اختبارات ميدانية ومخبرية على عينات مأخوذة من عدة شوارع رئيسية في دمشق، مثل شارع خالد بن الوليد وأوتوستراد المزة. تضمنت الاختبارات فحص التدرج الحبي للمواد الحصوية ونسبة البيتومين وثبات مارشال والكثافة والتشوه. أظهرت النتائج تفاوتاً في مدى الالتزام بالمواصفات الفنية بين الشوارع المختلفة، حيث كانت بعض العينات غير مطابقة للمواصفات الأمريكية ASTM D 3515. تم تقديم توصيات لتحسين جودة الطرق وضمان التزامها بالمواصفات الفنية المعتمدة.
Critical review
دراسة نقدية: تعتبر هذه الدراسة هامة جداً لتقييم جودة الطرق في مدينة دمشق، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، لم يتم توضيح منهجية اختيار العينات بشكل كافٍ، مما قد يؤثر على تمثيلية النتائج. ثانياً، كان من الأفضل تضمين تحليل اقتصادي لتكلفة إصلاح الطرق غير المطابقة للمواصفات. ثالثاً، لم يتم مناقشة تأثير العوامل البيئية مثل الطقس وحركة المرور على تدهور الطرق. وأخيراً، كان من المفيد تضمين مقارنة مع مدن أخرى لتقديم صورة أشمل عن جودة الطرق في دمشق.
Questions related to the research
-
ما هي الأهداف الرئيسية لهذه الدراسة؟
تهدف الدراسة إلى تقييم مدى التزام طبقة الاهتراء في بعض طرق مدينة دمشق بالمواصفات الفنية المعتمدة، من خلال إجراء اختبارات ميدانية ومخبرية على عينات مأخوذة من عدة شوارع رئيسية.
-
ما هي الاختبارات التي تم إجراؤها على العينات؟
تم إجراء اختبارات على التدرج الحبي للمواد الحصوية، نسبة البيتومين، ثبات مارشال، الكثافة، والتشوه.
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ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟
أظهرت النتائج تفاوتاً في مدى الالتزام بالمواصفات الفنية بين الشوارع المختلفة، حيث كانت بعض العينات غير مطابقة للمواصفات الأمريكية ASTM D 3515.
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ما هي التوصيات التي قدمتها الدراسة لتحسين جودة الطرق في دمشق؟
قدمت الدراسة توصيات لتحسين جودة الطرق وضمان التزامها بالمواصفات الفنية المعتمدة، ولكن لم يتم ذكر تفاصيل محددة عن هذه التوصيات في النص المقدم.
References used
The Asphalt Institute: Mix design Methods for Asphalt Concrete and other hot-mix types Manual Series No2 (MS-2), 1998
حماد,م.أحمد محمد الموسوعة الهندسية في هندسة الطرق الحضرية و الخلوية الطبعة الأولى الناشر علا للكتب 1999م.
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