Research on Mechanism of Fault Rock Burst

Sui-mu, YANG; Ning-bo, ZHANG; Jun, LIU; Shan-kun, ZHAO
October 2014
Coal Science & Technology (0253-2336);Oct2014, Vol. 42 Issue 10, p6
Academic Journal
In order to obtain the mechanism of fault rock burst occurred,taking F16 fault in Yima mining area as a study object,this paper used analog simulation and numerical simulation method.The process of fault rock burst induced by mining disturbance was researched and a sensitive index of fault slip was proposed.The reason of fault rock burst was revealed.The result showed that according to mining disturbance degree ,fault rock burst contains three stages which were start of fault activation ,fault intense activation and fault impact.The ratio of sheer stress and normal stress could connect fault stress field and fault activity,the ratio was sensitive indicator of fawt slip instability.When the stress ratio was low ,sliding velocity was almost zero.When the ratio rised ,sliding speed began to wave and increased gradually.When the ratio reached at maximum,the fault sliding instability,sliding velocity mutations and fault rock burst occurred.The overlying strata destruction caused by mining was the direct cause of fault rock burst and its root cause was changed to fault stress field.


Related Articles

  • Review of the Research Progress of Rock Burst. Yanbo Zhang; Guangyuan Yu; Baozhu Tian; Xiangxin Liu // Applied Mechanics & Materials;2014, Vol. 716-717, p410 

    Rock burst is one of geological hazards encountered frequently, rock burst research has important significance for safety production in mine. The paper based on different definitions of rock burst, the produce conditions and manifestation of rock burst are summarized, and classified. The...

  • Based on numerical simulation study of rockburst in roadway induced by fault. SHI Jun-wei; CHEN Zhang-liang // Advanced Materials Research;2014, Vol. 962-965, p370 

    According to the huge losses of people's life and property caused by coal rockburst, we make numberical simulational research on coal deep buried roadway fault rock burst which is based on the related fators about the occurrence of fault rockburst. Simulation results show that, the stress in...

  • Temperature effect of rock burst for hard rock in deep-buried tunnel. Chen, Guoqing; Li, Tianbin; Zhang, Guofeng; Yin, Hongyu; Zhang, Hang // Natural Hazards;Jun2014, Vol. 72 Issue 2, p915 

    Much research has been conducted on the influence of rock burst mechanisms and temperature on the mechanical properties of hard rock while research on the effect of temperature on rock bursts is scarce. Therefore, this paper focuses on Rock Burst Proneness Index tests and acoustic emission (AE)...

  • Pattern Recognition of Signals for the Fault-Slip Type of Rock Burst in Coal Mines. Liu, X. S.; Tan, J.; Tan, Y. L.; Hu, S. C. // Shock & Vibration;9/7/2015, Vol. 2015, p1 

    The fault-slip type of rock burst is a major threat to the safety of coal mining, and effectively recognizing its signals patterns is the foundation for the early warning and prevention. At first, a mechanical model of the fault-slip was established and the mechanism of the rock burst induced by...

  • Situation Assessment Model of Rock Burst Based on the Multi-source Information Fusion. Jia Ruisheng; Sun Hongmei; Fan Jiancong; Wu Chun Fang // Information Technology Journal;2014, Vol. 13 Issue 7, p1302 

    Rock burst is one of the main coal mining hazards in China. In recent years, digital reconstruction has been applied to detecting system and valuable data have been obtained in some large coal mine. However, how to find out origin and mechanism of the rock burst and how to improve the overall...

  • Control Mechanism of Rock Burst in the Floor of Roadway Driven along Next Goaf in Thick Coal Seam with Large Obliquity Angle in Deep Well. Cheng, Yunhai; Bai, Jinchao; Ma, Yankun; Sun, Jian; Liang, Yunpei; Jiang, Fuxing // Shock & Vibration;6/3/2015, Vol. 2015, p1 

    This paper deals with the theoretical aspects combined with stress analysis over the floor strata of coal seam and the calculation model for the stress on the coal floor. Basically, this research presents the relevant results obtained for the rock burst prevention in the floor of roadway driven...

  • Study on Pressure Observation of Fully Mechanized Caving Faces in Coal Seams with Rock Burst Danger in Xiagou Coal Mine. Zhichao Tian; Yejiao Liu; Wencai Wang; Yuhui Ren // Applied Mechanics & Materials;2014, Issue 580-583, p1331 

    Taking the first fully mechanized caving face in Xiagou coal mine as research background, through the pressure observation on the scene field of fully mechanized caving face with rock burst danger, this essay reveals the pressure appearance law of coal seams rock burst danger and concludes that...

  • Fold catastrophe model of strike-slip fault earthquake. Yue Pan; Ai-wu Li // Applied Mathematics & Mechanics;Mar2010, Vol. 31 Issue 3, p349 

    Using a differential form of the potential energy function and taking the effect of work applied by external force in far field into account, the mechanism of strike-slip fault earthquake is analyzed. The research indicates that each characteristic displayed with a fold catastrophe model in the...

  • Mechanical Properties and Bursting Liability Experimental Research of Roof in East Mine of Kouzi. Bo Wang // Advanced Materials Research;2014, Issue 926-930, p4101 

    In order to understand bursting liability and related mechanical properties of roof mudstone in east mine of Kouzi, SANS material mechanics testing machine is utilized as power equipment, bursting liability and related mechanical properties of roof mudstone has been tested, and MATLAB is...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics