Study on Stability of Rounding Rock When Mining on Confined Water in Reliability

Abstract

In order to research the stability of roadway rock and water-resisting layer of the baseboard, the paper use the theory of reliability to build a calculate model and regarding the mechanical parameters related to rock as random variables. Basis on the limit state during its stability and the relationship of stress-strain, the paper built limit state equation. And then it can solve the reliability of each unit. The research shows that roadway system is a series system. The law of rock changing shape can be regarded as normal distribution, which can help to solve the random variable.