Abstract：In order to study the stability of surrounding rocks of working face supported by the bolt-mesh-anchor technology in soft and thick coal seam excavated by fully-mechanized sublevel caving system，the deformation-failure of the pseudo-continuous roof and side coal is analyzed，respectively，by the theories of Timoshenko beam and rock mechanics. Various factors influencing the stability of rocks around working face are therefore identified. Based on the studies，all kinds of bolt-mesh-anchor supporting schemes are proposed and simulated by program UDEC3.0 with emphasis on the deformation states of surrounding rocks under various supporting intensity. At the same time the mutual effect-relation between the roof and side coal is discussed，and the supporting scheme is proposed with optimized supporting parameters. The in-situ test results show that supporting scheme No. 6 can meet the requirements of engineering with better economical and social benefits.
