Evolution Procedure of Multiple Rock Cracks under Seepage Pressure
المؤلفون المشاركون
Liu, Taoying
Cao, Ping
Lin, Hang
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-05-23
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
In practical geotechnical engineering, most of rock masses with multiple cracks exist in water environment.
Under such circumstance, these adjacent cracks could interact with each other.
Moreover, the seepage pressure, produced by the high water pressure, can change cracks’ status and have an impact on the stress state of fragile rocks.
According to the theory of fracture mechanics, this paper discusses the law of crack initiation and the evolution law of stress intensity factor at the tip of a wing crack caused by compression-shear stress and seepage pressure.
Subsequently, considering the interaction of the wing cracks and the additional stress caused by rock bridge damage, this paper proposes the intensity factor evolution equation under the combined action of compression-shear stress and seepage pressure.
In addition, this paper analyzes the propagation of cracks under different seepage pressure which reveals that the existence of seepage pressure facilitates the wing crack’s growth.
The result indicates that the high seepage pressure converts wing crack growth from stable form to unstable form.
Meanwhile, based on the criterion and mechanism for crack initiation and propagation, this paper puts forward the mechanical model for different fracture transfixion failure modes of the crag bridge under the combined action of seepage pressure and compression-shear stress.
At the last part, this paper, through investigating the flexibility tensor of the rock mass’s initial damage and its damage evolution in terms of jointed rock mass's damage mechanics, deduces the damage evolution equation for the rock mass with multiple cracks under the combined action of compression-shear stress and seepage pressure.
The achievement of this investigation provides a reliable theoretical principle for quantitative research of the fractured rock mass failure under seepage pressure.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Taoying& Cao, Ping& Lin, Hang. 2013. Evolution Procedure of Multiple Rock Cracks under Seepage Pressure. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1010555
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Taoying…[et al.]. Evolution Procedure of Multiple Rock Cracks under Seepage Pressure. Mathematical Problems in Engineering No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-1010555
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Taoying& Cao, Ping& Lin, Hang. Evolution Procedure of Multiple Rock Cracks under Seepage Pressure. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1010555
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1010555
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