پژوهشنامه حمل و نقل

پژوهشنامه حمل و نقل

حل سه پوسته متصل بهم سازه نگهبان جدید به روش نظری برای پایدارسازی ترانشه های راه

نوع مقاله : مقاله پژوهشی

نویسنده
گروه مهندسی عمران، دانشگاه ملی مهارت، تهران، ایران
چکیده
در راهسازی برای جلوگیری از ریزش خاک و هرجا که احتیاج به تکیه گاه جانبی برای جدار قائم خاکبرداری باشد از انواع سازه های نگهبان استفاده می شود. با توجه به اینکه در برابر نیروهای مساوی، پوسته ها ضخامت کمتری نسبت به دال های مسطح دارند و در نتیجه استفاده از آنها از نظر مصالح مصرفی اقتصادی تر است، لذا در این پژوهش، در جهت کاهش مصالح مصرفی، پوسته های استوانه ای جدار نازک با دیوارهای حایل وزنی بتنی تطبیق گردیده و یک فرم سازه ای جدید پیشنهاد گردیده است. سپس روش جدیدی برای محاسبه و آنالیز ارائه شده است. در این مقاله تلاش شده تا بر اساس نظریه پوسته ها و با در نظر گرفتن جنبه های فیزیکی و ریاضی مسئله، معادلات حاکم بر سازه جدید، ارائه شود. در حل مسئله دیوار نگهبان تشکیل شده از سه پوسته استوانه ای بتنی از اصول ریاضی و روش آنالیز نظری استفاده شده است.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Solving of Three Interconnected Shells of the New Retaining Structure by Theoretical Method for Stabilizing Road Trenches

نویسنده English

Ali Majidpourkhoei
Department of Civil Engineering, Technical and Vocational University (TVU), Tehran, Iran.
چکیده English

In road construction, to prevent the fall of soil and wherever there is a need for lateral support for the vertical wall of excavation, a variety of retaining structures are used. Considering that against equal forces, shells are less thick than flat slabs, and as a result, their use is more economical in terms of consumables, Therefore, in this research, in order to reduce the consumption of materials, thin-walled cylindrical shells have been adapted to concrete gravity retaining walls and a new structural form has been proposed. Then a new method for calculation and analysis is provided. In this article, based on the theory of cylindrical shells and considering the physical and mathematical aspects of the problem, the governing equations of the new structure have been presented. Mathematical principles and theoretical analysis methods have been used in solving the problem of the retaining wall consisting of three concrete cylindrical shells.

کلیدواژه‌ها English

Concrete Gravity Retaining Walls
Thin Cylindrical Shells
Theory of Shells
Retaining Structures
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