Stress analysis around tunnels during construction stages using finite elements method
Other Title(s)
تحليل الإجهاد حول الإنفاق أثناء مراحل الإنشاء باستخدام طريقة العناصر المحددة
Joint Authors
Salim, Nahlah Muhammad Nuri
Shalash, Qays T.
Shakir, Zaynab H.
Source
Engineering and Technology Journal
Issue
Vol. 32, Issue 6A (30 Jun. 2014), pp.1562-1578, 17 p.
Publisher
Publication Date
2014-06-30
Country of Publication
Iraq
No. of Pages
17
Main Subjects
Topics
Abstract AR
في هذه الدراسة تم تحليل الإجهادات خلال مراحل الإنشاء المختلفة لنفق.
تم اعتماد طريقة العناصر المحددة (FEM) كمنهج فعال لتحليل تصرف النفق باستخدام برنامج (SIGMA/W). تضمن البحث دراسة سلوك التربة نتيجة حفر النفق عن طريق حساب الإزاحات و الإجهادات في مواقع ثلاثة (Crown, Wall, Invert) من النفق خلال المراحل المختلفة من الإنشاء. أجريت التحليلات باستخدام العناصر المحددة باعتماد نموذجين (اللدن مرن) و (المرونة الخطية) لتمثيل التربة و مادة بطانة النفق على التوالي.
النتائج أظهرت ان زيادة مراحل الحفر (استخدام ستة مراحل) يقلل الإزاحة مقارنة بالحفر في مرحلة واحدة.
Abstract EN
In this study, the stresses around a tunnel during construction stages are discussed.
For this purpose, the finite element method (FEM) was adopted as an effective approach to analyze the problem using (SIGMA / W) program.
The research includes the study of the behavior of soil due to excavation of tunnel by calculating the displacements and stresses in three positions of tunnel (crown, wall, and invert) during the various stages of construction.
The finite element analyses were carried out using (Elastic- plastic) and (linear elastic) models for the soil and the concrete liner respectively.
From the results, it can be noticed that increasing the number of excavation stages (using six stages) decreases the displacement comparing with excavation using one stage.
American Psychological Association (APA)
Shalash, Qays T.& Salim, Nahlah Muhammad Nuri& Shakir, Zaynab H.. 2014. Stress analysis around tunnels during construction stages using finite elements method. Engineering and Technology Journal،Vol. 32, no. 6A, pp.1562-1578.
https://search.emarefa.net/detail/BIM-385856
Modern Language Association (MLA)
Shalash, Qays T.…[et al.]. Stress analysis around tunnels during construction stages using finite elements method. Engineering and Technology Journal Vol. 32, no. 6A (2014), pp.1562-1578.
https://search.emarefa.net/detail/BIM-385856
American Medical Association (AMA)
Shalash, Qays T.& Salim, Nahlah Muhammad Nuri& Shakir, Zaynab H.. Stress analysis around tunnels during construction stages using finite elements method. Engineering and Technology Journal. 2014. Vol. 32, no. 6A, pp.1562-1578.
https://search.emarefa.net/detail/BIM-385856
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p.1577-1578
Record ID
BIM-385856