Strong-soft-strong mechanical model for controlling roadway surrounding rock subjected to rock burst and its application
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Strong-soft-strong mechanical model for controlling roadway surrounding rock subjected to rock burst and its application
Vol. 29, Issue 2, (2008)
作者机构:
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DOI:
CLC:TU451
Online First:10 July 2013,
Published:2008
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GAO Ming-shi1, DOU Lin-ming1, ZHANG Nong1, et al. Strong-soft-strong mechanical model for controlling roadway surrounding rock subjected to rock burst and its application[J]. 2008, 29(2).
DOI:
GAO Ming-shi1, DOU Lin-ming1, ZHANG Nong1, et al. Strong-soft-strong mechanical model for controlling roadway surrounding rock subjected to rock burst and its application[J]. 2008, 29(2).DOI:
Strong-soft-strong mechanical model for controlling roadway surrounding rock subjected to rock burst and its application
Rock burst may result in tremendous hazards in coal mining
such as sudden roof falling or even abrupt closing and jamming of roadway. According to the mechanism of roadway destruction by rock burst
a strong-soft-strong (3S) structural model to prevent rock burst from taking place was established and analyzed. The result shows that the 3S structural model has several characters
such as strength character of the structure itself
stress adjustment
wave absorbing
deformation and anti-deformation
energy consuming
etc.. Stress criterion and energy rule of the small inner support structure destroyed by rock burst were deduced. At last
based on the 3S model
the engineering application was theoretically discussed; several techniques such as decreasing shock energy
setting proper soft structure
and improving support strength were put forward to prevent roadway from being destructed by rock burst.