The interaction between the roadway support and wall rock and dependency each other have common loading affect.It is a way of re asonable using wall rock loading power.

• 巷道支架与围岩的相互作用、相互依赖,具有共同承载作用。利用支架与围岩相互作用实现共同承载是合理利用围岩自承力的途径。