Numerical Simulation on Mechanical Characteristics of floor in Gob-side Entry Retaining of Deep Mine

摘要

This paper revealed the mechanical characteristics of floor in Gob-side Entry Retaining of Deep Mine according to the geological conditions and mining technical conditions of working face 1115(1) inGuqiao coal mine by using numerical simulation. The characteristics of the vertical stress distribution of strike and incline in the floor at different stages are obtained, which provides a theoretical basis for the prevention and control of floor heave.