Composite Support Technology and Monitoring Analysis of Water-rich Soft Rock Roadway

For the problem of deformation and failure of soft rock roadway caused by water content in a mine, according to the theoretical elastoplasticity of roadway surrounding rock, this paper presents a high efficiency compound support scheme of “two-layer steel mesh sandwich concrete shotcrete and bolt (cable) grouting”, and describes the mechanical mechanism of the interaction between the composite supports. Combined with the monitoring data in the actual mining area, it is concluded that this kind of compound support method can effectively suppress the deformation of roadway surrounding rock.