Drill body unit for high-pressure jet grouting nozzle, drill body and nozzle

• Main Authors: LUO SHUAIXUN, ZHANG BAOLIN, LYU PEIDONG, DONG ZHAOHUI, WANG LONG
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2020
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to a drill body unit for a high-pressure jet grouting nozzle, a drill body and the nozzle. Wherein the drill body unit is of a cylindrical cavity structure and penetrates through the channel in the axial direction of the drill body unit, and the channel at least comprises a water diversion channel and a cutting water channel; the drill body unit is communicated with the channel, at least three nozzles are embedded in the drill body unit, and at least one nozzle is internally connected with a cutting water channel; the channel also comprises at least one slurry channel, and the slurry channel is connected in the at least one nozzle; the channel further comprises at least one steam channel, and at least one nozzle is internally connected with the steam channel. Through reasonable arrangement of a component structure and cooperation of multiple channels and multiple nozzles, the jet grouting device is suitable for an RJP construction method and a common jet grouting construction method,