Experimental Study on Dynamic Compression Characteristics of Red Sandstone under Wetting-Drying Cycles
المؤلفون المشاركون
Bai, Haibo
He, Shixin
Du, Bin
Zhai, Minglei
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-12-14
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
To study the influence of wetting-drying cycles on dynamic mechanical properties of rock masses, the impact compression tests of red sandstone samples were carried out by using a split Hopkinson pressure bar (SHPB) apparatus with a diameter of 50 mm.
The results showed that under the same number of wetting-drying cycles, the dynamic compressive strength of red sandstone increased exponentially with the strain rate, and the sensitivity of the strain rate decreased with the increase of wetting-drying cycles.
The deterioration effect of wetting-drying cycles was significant, and the dynamic and static compressive strength decreased with the increase of wetting-drying cycles; the higher the strain rate, the stronger the sensitivity to wetting-drying cycles.
Besides, the influence of wetting-drying cycles and strain rate was comprehensively studied, and the equation of dynamic compressive strength of red sandstone was obtained.
After different wetting-drying cycles, the fractal characteristics of red sandstone dynamic fragmentation were obvious, and the fractal dimension was 2.02–2.80, and the fractal dimension increased logarithmically with the strain rate.
Finally, the internal microstructure of red sandstone after different wetting-drying cycles was analyzed, and the degradation mechanism of the rock by the cycles was discussed.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Du, Bin& Bai, Haibo& Zhai, Minglei& He, Shixin. 2020. Experimental Study on Dynamic Compression Characteristics of Red Sandstone under Wetting-Drying Cycles. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1122502
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Du, Bin…[et al.]. Experimental Study on Dynamic Compression Characteristics of Red Sandstone under Wetting-Drying Cycles. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1122502
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Du, Bin& Bai, Haibo& Zhai, Minglei& He, Shixin. Experimental Study on Dynamic Compression Characteristics of Red Sandstone under Wetting-Drying Cycles. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1122502
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1122502
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