Pressure-dispersion type anchor cable and mounting method thereof

The invention discloses a pressure-dispersion type anchor cable. An inner anchoring section of the pressure-dispersion type anchor cable comprises an anchor cable body and a multi-stage cable body bearing structure. Apart from a first stage bearing plate, other stages of bearing plates are combined-type bearing plates. Limiting plates are also combined-type limiting plates. Each combined-type bearing plate comprises an outer bearing plate and an inner bearing plate. Arc grooves I used for mounting prestressed tendons are formed in the periphery of a circular ring shaped outer bearing plate body of each outer bearing plate. Arc grooves II used for mounting the prestressed tendons are formed in the periphery of a circular ring shaped inner bearing plate body of each inner bearing plate. Injection pipe mounting holes are formed in the centers of the inner bearing plate bodies and inner limiting plates. In a using state, annular step holes I of the inner bearing plates/inner limiting plates are matched with annul