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.