Construction method of multi-axis high-pressure-spraying diaphragm wall

The invention discloses a multi-shaft high-pressure-spraying diaphragm wall construction method which comprises the steps that at least two drill rods are transversely arranged to form a drill rod set, the adjacent drill rods are not engaged, the drill rod set is driven by a rotary power mechanism to drill a stratum, and in the drilling process, fluid cutting is conducted on the stratum between the adjacent drill rods through a nozzle at the same time; downward cutting is performed through the cutting plate; in the drilling process and/or the process of lifting the drill rod group, a condensation material is injected into the drilled and sprayed original stratum, and the condensation material and other materials of the original stratum are condensed to form a wall body; the multiple drill rods are connected through the cutting plate, so that the drilling construction efficiency is greatly improved, the nozzles are arranged on the cutting plate, high-pressure jet cutting can be conducted on unengaged stratums