Based on Yangjiacun Mine auxiliary slope double steel concrete bricklaying cannot adapt to its shallow strata, large variability of quaternary thickness, serious surrounding rock weathering and the rock hardness coefficient less than 3 engineering reality, through the rock mechanics experiment, the surrounding rock loose circle measurement and theoretical calculation, optimized support was spray anchor, nets, rope, combined support form. According to the measured bolt axial force and maximum level avoidances of roadway convergence deformation was 60 mm and 25 mm, with good actual application effect.
