Abstract: This paper analyzed the roadway deformation characteristics and put forward anchor-belt-net-cable combined support technology, taking 15107 island coal face of Huangyanhui Coal Mine for engineering background. The results of the field test show that mining impact on the roadway deformation is small at 120m to 180m ahead of the coal face. When the distance reaches 70m to 120m, the impact of mining on the roadway appears gradually. The mining impact on the roadway deformation becomes severe when the distance is 0m to 20m. During the observation period, the roof to floor deformation of the roadway is 886mm and it is mainly caused by floor heave. The two side deformation is 1164mm, and it is mainly occurred on the side of coal pillar. The floor separation monitoring shows that the separation in the anchorage zone is small during mining influence, and it also provide a reference for the roadway support with similar conditions.

Key words: island coal face, anchor-belt-net-cable support technology, control technology, separation