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Influence of Real-Time Heating on Mechanical Behaviours of Rocks
المؤلفون المشاركون
Gu, Bin
Wan, Zhijun
Ma, Yangsheng
Xu, Xiaodong Bernard
Zhang, Yuan
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-08-11
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
The rock mechanical properties under the effect of high temperature present a great significance on underground rock engineering.
In this paper, the mechanical properties of sandstones, marbles, and granites under real-time heating were investigated with a servo-controlled compression apparatus.
The results show that mechanical behaviours of all the three types of rocks are influenced by real-time heating to different degrees.
Due to thermal cracking, the uniaxial compressive strengths decrease as the heating temperature rises from room temperature to 400°C.
Above 400°C, the sandstone exhibits a significant increase in UCS because of the sintering reaction.
The sintering enlarges the contact area and friction between crystal grains in the sandstone, which strengthens the bearing capacity.
For marbles, the UCS continues to decrease from 400°C to 600°C due to thermal cracking.
However, the carbonate in the marble begins to decompose after 600°C.
The generated particles would fill the cracks in the marble and increase the strength.
For granites, their UCS presents a sharp decline after 400°C because of thermal cracking.
For all rock elastic modulus, they present a decreasing trend, and this indicates that the rock’s ability to resist deformation gradually weakens under the effect of temperature.
In general, rock mechanical behaviours under real-time heating differ from those in normal situations, and use of the parameters presented here is important for underground rock engineering related to high temperature and can improve the precision in theoretical and numerical analysis.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Gu, Bin& Wan, Zhijun& Zhang, Yuan& Ma, Yangsheng& Xu, Xiaodong Bernard. 2020. Influence of Real-Time Heating on Mechanical Behaviours of Rocks. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1125098
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Gu, Bin…[et al.]. Influence of Real-Time Heating on Mechanical Behaviours of Rocks. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1125098
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Gu, Bin& Wan, Zhijun& Zhang, Yuan& Ma, Yangsheng& Xu, Xiaodong Bernard. Influence of Real-Time Heating on Mechanical Behaviours of Rocks. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1125098
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1125098
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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