Investigation of the Effects of Freeze-Thaw Cycles on Geomechanical and Acoustic Characteristics of Tuff Specimens under Different Stress Paths
المؤلفون المشاركون
Hu, Nan
Xiao, Yong-gang
Li, Chang-hong
Cao, Jie
Hou, Zhi-qiang
Wang, Yu
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-20، 20ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-12-22
دولة النشر
مصر
عدد الصفحات
20
التخصصات الرئيسية
الملخص EN
In the process of development and construction of open-pit mine slope in the high altitude and cold area, freeze-thaw (F-T) cycles have an important impact on rock engineering structure.
F-T cycles lead to the decrease in physical and mechanical properties of rock, which is closely related to the stability of open-pit slope.
In this paper, the influence of F-T cycles on geomechanical and acoustic emission (AE) characteristics of tuff specimens under different stress paths was studied by using F-T cycle treatment, in situ AE monitoring, and uniaxial loading test.
The results indicated that under the same stress path, the cumulative AE count/energy of rock samples subjected to F-T cycles was less than that of rock samples not subjected to F-T cycles.
The peak frequency distribution of AE signal during the loading process of rock specimen presented the phenomenon of frequency bands.
The width of the low-frequency band of the rock samples subjected to F-T cycles was larger than that of the rock samples under the natural state.
The frequency and width of the high-frequency band of the rock samples subjected to F-T cycles were larger than those of the rock samples under the natural state.
The rock samples subjected to F-T cycles had higher plastic strain than those without F-T cycles.
According to the uniaxial compression test results of F-T rock samples under different stress paths, the peak stress and peak strain have little change, but the AE characteristics were obviously different.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Xiao, Yong-gang& Li, Chang-hong& Cao, Jie& Wang, Yu& Hou, Zhi-qiang& Hu, Nan. 2020. Investigation of the Effects of Freeze-Thaw Cycles on Geomechanical and Acoustic Characteristics of Tuff Specimens under Different Stress Paths. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1122505
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Xiao, Yong-gang…[et al.]. Investigation of the Effects of Freeze-Thaw Cycles on Geomechanical and Acoustic Characteristics of Tuff Specimens under Different Stress Paths. Advances in Civil Engineering No. 2020 (2020), pp.1-20.
https://search.emarefa.net/detail/BIM-1122505
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Xiao, Yong-gang& Li, Chang-hong& Cao, Jie& Wang, Yu& Hou, Zhi-qiang& Hu, Nan. Investigation of the Effects of Freeze-Thaw Cycles on Geomechanical and Acoustic Characteristics of Tuff Specimens under Different Stress Paths. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1122505
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1122505
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