Anchoring mechanism and supporting construction method

The invention relates to the technical field of tunnel construction, in particular to an anchoring mechanism and a supporting construction method. Wherein the anchoring mechanism comprises a first anchoring assembly, a second anchoring assembly and a third anchoring assembly, the first anchoring assembly comprises a tensioning structure, and the tensioning structure makes contact with the hole wall of the anchoring hole to form first anchoring force; the second anchoring assembly comprises a clamping block structure, and the clamping block structure can penetrate through the tensioning structure to be limited with the anchoring hole so as to form second anchoring force; the third anchoring assembly is arranged at the end, stretching into the anchoring hole, of the tensioning structure and used for stirring the anchoring agent to form third anchoring force. Friction anchoring force is formed through contact between the tensioning structure and the wall of the anchoring hole, limiting is formed through the clam