Rock anchor embedding method for tunnel construction involves selecting hardenable and hardening plastics and mixing ratio of plastics for transport time to correspond to hardening time

摘要

A hardening mass is comprised of a mixture of hardenable plastic and hardening plastic supplied to an inner channel (8) of a drill rod (1) over a preset transport time. The plastics and the mixing ratio of the plastics are selected such that the transport time corresponds to a hardening time and the hardened mixture fills the flow path between the mixing point and output of a drilled hole of a rock.