Solution of Strain-Softening Surrounding Rock in Deep Tunnel Incorporating 3D Hoek-Brown Failure Criterion and Flow Rule

المؤلفون المشاركون

Jin-feng, Zou
Zuo, Song-qing
Xu, Yuan

المصدر

Mathematical Problems in Engineering

العدد

المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-12، 12ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2016-07-31

دولة النشر

مصر

عدد الصفحات

12

التخصصات الرئيسية

هندسة مدنية

الملخص EN

In order to investigate the influence of the intermediate principal stress on the stress and displacement of surrounding rock, a novel approach based on 3D Hoek-Brown (H-B) failure criterion was proposed.

Taking the strain-softening characteristic of rock mass into account, the potential plastic zone is subdivided into a finite number of concentric annulus and a numerical procedure for calculating the stress and displacement of each annulus was presented.

Strains were obtained based on the nonassociated and associated flow rule and 3D plastic potential function.

Stresses were achieved by the stress equilibrium equation and generalized Hoek-Brown failure criterion.

Using the proposed approach, we can get the solutions of the stress and displacement of the surrounding rock considering the intermediate principal stress.

Moreover, the proposed approach was validated with the published results.

Compared with the results based on generalized Hoek-Brown failure criterion, it is shown that the plastic radius calculated by 3D Hoek-Brown failure criterion is smaller than those solved by generalized H-B failure criterion, and the influences of dilatancy effect on the results based on the generalized H-B failure criterion are greater than those based on 3D H-B failure criterion.

The displacements considering the nonassociated flow rule are smaller than those considering associated flow rules.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Jin-feng, Zou& Zuo, Song-qing& Xu, Yuan. 2016. Solution of Strain-Softening Surrounding Rock in Deep Tunnel Incorporating 3D Hoek-Brown Failure Criterion and Flow Rule. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1112637

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Jin-feng, Zou…[et al.]. Solution of Strain-Softening Surrounding Rock in Deep Tunnel Incorporating 3D Hoek-Brown Failure Criterion and Flow Rule. Mathematical Problems in Engineering No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1112637

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Jin-feng, Zou& Zuo, Song-qing& Xu, Yuan. Solution of Strain-Softening Surrounding Rock in Deep Tunnel Incorporating 3D Hoek-Brown Failure Criterion and Flow Rule. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1112637

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1112637