Numerical Modeling of Stress Disturbance Characteristics during Tunnel Excavation
المؤلفون المشاركون
Zhu, Zeqi
Sheng, Qian
Zhang, Yumin
Liu, Shiwei
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-04-28
دولة النشر
مصر
عدد الصفحات
9
الملخص EN
The stress state and principal stress axis changes of the stress-field tensor are analyzed during the advancement of a tunnel face on the basis of a given case study of the Jinping II Hydropower Station in China.
First, the prevailing pole diagram in geology is used to illustrate the rotation of the stress axes as the tunnel face advances.
The results show that the orientation adjustments of principal stresses in different positions near the tunnel boundary share common characteristics.
The major and minor principal stress axes ahead of the tunnel face will rotate to intersect with the excavation surface at an angle, with the intermediate principal stress axis being almost parallel to the excavation surface.
Furthermore, the stress triaxiality that is commonly used to indicate the deformation and damage of metal materials is introduced to describe the stress state change of the excavation-induced stress.
The stress triaxiality is found to represent the stress state change due to the variation in both the magnitude and orientation of the stress-field tensor.
According to the physical meaning and the change law of the stress triaxiality, stress disturbance during tunnel excavation can be divided into four stages, and the stress disturbance zone is divided into a strong disturbance zone and a weak disturbance zone.
The disturbance characteristics of different stages and the distribution patterns of various zones are analyzed, which may be useful for practical application in the design and construction of rock tunnels.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhu, Zeqi& Sheng, Qian& Zhang, Yumin& Liu, Shiwei. 2020. Numerical Modeling of Stress Disturbance Characteristics during Tunnel Excavation. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1128375
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhu, Zeqi…[et al.]. Numerical Modeling of Stress Disturbance Characteristics during Tunnel Excavation. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1128375
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhu, Zeqi& Sheng, Qian& Zhang, Yumin& Liu, Shiwei. Numerical Modeling of Stress Disturbance Characteristics during Tunnel Excavation. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1128375
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1128375
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر