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Experimental Investigation of the Anomalously Low Friction Phenomena in Blocky Rock Systems
المؤلفون المشاركون
Xu, Chenghua
Deng, Shuxin
Shi, Yehui
Lu, Hao
Cheng, Helan
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-10-10
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Rock masses can be regarded as a blocky rock system.
After a disturbance load is applied, the anomalously low friction phenomenon may take place and cause geological disasters.
A series of impact experiments on granite blocks were conducted to investigate the anomalously low friction phenomena.
Vertical vibration, Fourier frequency spectrum, and horizontal motions were investigated.
It can be found that the tensile phases of vertical vibration can reduce the maximum static friction force, namely, the shear strength.
The quasi-resonance operating mode of the rock blocks was observed.
During the stress wave propagation, the vibration in the loading direction tends to transfer from high frequency to low frequency and the modes of stress wave propagation do not depend on disturbance energies.
The observed translational and rotational motions were due to the initial shear force, which is less than the friction force with no disturbance load.
Stability of the blocky rock system is very sensitive to the initial stress state.
In the subcritical state, friction force reduction can easily break the equilibrium of forces along the contact surface and even a slight disturbance may make the horizontal motions happen, which may lead to geological disasters with great energy release.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Shi, Yehui& Lu, Hao& Deng, Shuxin& Xu, Chenghua& Cheng, Helan. 2020. Experimental Investigation of the Anomalously Low Friction Phenomena in Blocky Rock Systems. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1125542
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Shi, Yehui…[et al.]. Experimental Investigation of the Anomalously Low Friction Phenomena in Blocky Rock Systems. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1125542
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Shi, Yehui& Lu, Hao& Deng, Shuxin& Xu, Chenghua& Cheng, Helan. Experimental Investigation of the Anomalously Low Friction Phenomena in Blocky Rock Systems. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1125542
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1125542
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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