Elastoplastic Analysis of Circular Openings in Elasto-Brittle-Plastic Rock Mass Based on Logarithmic Strain

المؤلفون المشاركون

Yu, Li-yuan
Zhang, Qiang
Li, Cheng
Min, Ming
Jiang, Binsong

المصدر

Mathematical Problems in Engineering

العدد

المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-9، 9ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2017-12-11

دولة النشر

مصر

عدد الصفحات

9

التخصصات الرئيسية

هندسة مدنية

الملخص EN

Rock-like materials, such as coal and soft rock, often manifest larger deformation features.

The prediction values for displacement and failure region based on the commonly used small strain (SS) theory are generally larger than the field test results.

Based on the Euler coordinate system, the logarithmic strain (LS) is employed to describe the actual deformation behavior.

Both of the stresses and displacement of circular opening in elasto-brittle-plastic rock mass are formulated with differential equations.

And a simple approach is proposed to solve the differential equations.

The results show that the plastic radius depends on the elastic parameters, that is, Young’s modulus and Poisson’s ratio, which is different from SS theory.

And the plastic radius and displacement of LS rock mass are smaller than those of SS rock mass, and the displacement of LS rock mass is absolutely smaller than the excavation radius.

The proposed solutions can provide theoretical foundation for the optimization of supporting structure in underground engineering.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Zhang, Qiang& Li, Cheng& Min, Ming& Jiang, Binsong& Yu, Li-yuan. 2017. Elastoplastic Analysis of Circular Openings in Elasto-Brittle-Plastic Rock Mass Based on Logarithmic Strain. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1191897

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Zhang, Qiang…[et al.]. Elastoplastic Analysis of Circular Openings in Elasto-Brittle-Plastic Rock Mass Based on Logarithmic Strain. Mathematical Problems in Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1191897

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Zhang, Qiang& Li, Cheng& Min, Ming& Jiang, Binsong& Yu, Li-yuan. Elastoplastic Analysis of Circular Openings in Elasto-Brittle-Plastic Rock Mass Based on Logarithmic Strain. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1191897

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1191897