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Analysis of Precursors Prior to Rock Burst in Granite Tunnel Using Acoustic Emission and Far Infrared Monitoring
المؤلفون المشاركون
Tang, Chunan
Liang, Zhengzhao
Liu, Xiangxin
Zhang, Yanbo
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-12-12
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
To understand the physical mechanism of the anomalous behaviors observed prior to rock burst, the acoustic emission (AE) and far infrared (FIR) techniques were applied to monitor the progressive failure of a rock tunnel model subjected to biaxial stresses.
Images of fracturing process, temperature changes of the tunnel, and spatiotemporal serials of acoustic emission were simultaneously recorded during deformation of the model.
The b-value derived from the amplitude distribution data of AE was calculated to predict the tunnel rock burst.
The results showed that the vertical stress enhanced the stability of the tunnel, and the tunnels with higher confining pressure demonstrated a more abrupt and strong rock burst.
Abnormal temperature changes around the wall were observed prior to the rock burst of the tunnel.
Analysis of the AE events showed that a sudden drop and then a quiet period could be considered as the precursors to forecast the rock burst hazard.
Statistical analysis indicated that rock fragment spalling occurred earlier than the abnormal temperature changes, and the abnormal temperature occurred earlier than the descent of the AE b-value.
The analysis indicated that the temperature changes were more sensitive than the AE b-value changes to predict the tunnel rock bursts.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liang, Zhengzhao& Liu, Xiangxin& Zhang, Yanbo& Tang, Chunan. 2013. Analysis of Precursors Prior to Rock Burst in Granite Tunnel Using Acoustic Emission and Far Infrared Monitoring. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1008711
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liang, Zhengzhao…[et al.]. Analysis of Precursors Prior to Rock Burst in Granite Tunnel Using Acoustic Emission and Far Infrared Monitoring. Mathematical Problems in Engineering No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1008711
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liang, Zhengzhao& Liu, Xiangxin& Zhang, Yanbo& Tang, Chunan. Analysis of Precursors Prior to Rock Burst in Granite Tunnel Using Acoustic Emission and Far Infrared Monitoring. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1008711
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1008711
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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