کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10284749 | 503388 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the variational solution of a limiting equilibrium problem involving an anchored wall
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: On the variational solution of a limiting equilibrium problem involving an anchored wall On the variational solution of a limiting equilibrium problem involving an anchored wall](/preview/png/10284749.png)
چکیده انگلیسی
This paper presents a solution of an anchored retaining wall problem using the approach of classical variational calculus, that allows the three equilibrium equations to be taken into account. The problem is formulated as an isoperimetric problem of variational calculus and a closed-form solution of Euler's equations is found. The analysis is validated by means of the classical Coulomb's wedge method that is obtained when the moment equilibrium is omitted. Unfortunately, in the general case, extremes of the functionals that are involved in the formulation of the problem can not be found in an analytical way. In this case, a crucial point was to establish bounds for the domain of the investigations of the functional maxima. Next, based on these bounds, a numerical procedure for finding maxima has been worked out. Several numerical analyses for the case of wall embedded in a non-cohesive soil have been carried out. An important finding is that the classical Coulomb's wedge method, which ignores the moment equilibrium equation, is an unconservative approach and hence provides an unsafe solution for the anchor force.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Geotechnics - Volume 32, Issue 2, March 2005, Pages 107-121
Journal: Computers and Geotechnics - Volume 32, Issue 2, March 2005, Pages 107-121
نویسندگان
Olgierd PuÅa, Wojciech PuÅa, Anna Wolny,