Dynamic Behavior and Energy Evolution Characteristic of Deep Roadway Sandstone Containing Weakly Filled Joint at Various Angles
المؤلفون المشاركون
Ma, Qinyong
Su, Qingqing
Yuan, Pu
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-08-24
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Dynamic impact tests were carried out by implying split-Hopkinson pressure bar (SHPB) apparatus under three-dimensional stress state to investigate the influences of weakly filled joint at seven kinds of angles on dynamic behavior and energy evolution characteristic of deep roadway sandstone (985 m below the surface).
The results indicated that rebound strain phenomenon was obvious and the growth rate of stress was in two kinds of phased variations.
Dynamic peak strain was inversely proportional to joint angle under three different strain rates.
Dynamic compressive strength, elastic deformation modulus, and plastic deformation modulus were in similar variable tendencies with incremental joint angles, showing firstly decrease to minimum value at joint angle of 45° and then increase to maximum value at joint angle of 90°.
Moreover, the sensitivity of plastic deformation modulus to joint angle was obviously inferior to that of elastic deformation modulus when joint angle increased from 0° to 45°.
Furthermore, both elastic deformation modulus and plastic deformation modulus were independent of strain rate, which was contrary to dynamic compressive strength and dynamic peak strain.
Additionally, absorption energy release rate was introduced and defined to describe energy release and conversion characteristics of joint specimens.
The changed trend of energy reflection coefficient was completely opposite to that of energy transmission coefficient and absorbed energy release rate.
Absorbed energy density was linearly decreased with incremental joint angle and was increased with the increase of strain rate.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Ma, Qinyong& Su, Qingqing& Yuan, Pu. 2020. Dynamic Behavior and Energy Evolution Characteristic of Deep Roadway Sandstone Containing Weakly Filled Joint at Various Angles. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1123137
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Ma, Qinyong…[et al.]. Dynamic Behavior and Energy Evolution Characteristic of Deep Roadway Sandstone Containing Weakly Filled Joint at Various Angles. Advances in Civil Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1123137
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Ma, Qinyong& Su, Qingqing& Yuan, Pu. Dynamic Behavior and Energy Evolution Characteristic of Deep Roadway Sandstone Containing Weakly Filled Joint at Various Angles. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1123137
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1123137
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