Case study shows that rockburst often needs a preparation period before it happens.Rockburst in coal mines frequently occurs with a time lag.This paper reveals its gestation process based on the rheological properties of coal and rock.Based on the seismic studies of rheological model birth process and applied the Burgers-Senvitorve-Bengarm Model to rheological properties of narrow coal pillar

this research focuses on the rock-burst gestation process in narrow coal pillars with the actual mining of Gengcun coal mining of Yima.Results show that in the early stage of narrow coal pillar rock-burst birth process

the elastic energy accumulation is dominant.In the later stage

the energy dissipation is dominant.Energy accumulation and dissipation abilities of soft rocks during the rockburst gestation process are weaker than that of hard rock.The whole process lasts for a long time and with less energy releasing during rockburst.While for hard rocks

it is opposite to the soft rocks.