Experimental Study on Mesoscopic Shear Behavior of Calcareous Sand Material with Digital Imaging Approach
المؤلفون المشاركون
Shen, Jianhua
Wang, Xinzhi
Wang, Xing
Liu, Wenbai
Zhang, Poyu
Zhu, Changqi
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-11-23
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
The study of the mesostructure of soil under loading is the basis for understanding its macromechanical properties and for establishing its constitutive model.
In this study, a series of shear tests was performed on dry calcareous sand under constant normal stress by a modified direct shear apparatus.
Digital images of the sample at different shear stages are obtained.
The mesostructural parameters of the sample are then extracted and analyzed using an image analysis technique.
The results show that the shear-band is located at the junction of the upper and lower shear boxes with a thickness of 0.79–1.59 mm.
During shearing, the position of the maximum shear strain incremently shifted to the junctions between the two shear boxes.
The azimuths of the particles prior to the test distribute symmetrically on both sides of 90°.
After the test, the azimuths of the particles are mainly obtuse angles (150–180°) and the long axis of the particles generally points in the opposite direction from the shear-band.
The sand particles undergo four stages: random arrangement during initial sample preparation, compaction under normal stress, particle rotation during shearing, and ordered alignment after shearing.
The test results help to reveal the movement mechanism of calcareous sand at the mesoscopic level during the direct shear process.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Shen, Jianhua& Wang, Xing& Liu, Wenbai& Zhang, Poyu& Zhu, Changqi& Wang, Xinzhi. 2020. Experimental Study on Mesoscopic Shear Behavior of Calcareous Sand Material with Digital Imaging Approach. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1125122
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Shen, Jianhua…[et al.]. Experimental Study on Mesoscopic Shear Behavior of Calcareous Sand Material with Digital Imaging Approach. Advances in Civil Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1125122
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Shen, Jianhua& Wang, Xing& Liu, Wenbai& Zhang, Poyu& Zhu, Changqi& Wang, Xinzhi. Experimental Study on Mesoscopic Shear Behavior of Calcareous Sand Material with Digital Imaging Approach. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1125122
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1125122
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