High pressure spraying pile is high pressure rotating nozzles grout is injected into the soil and soil mixing, jet grouting bolt rig manufacturers, cement and overlap to form a continuous solid. Construction area of ??small, low vibration, low noise, but easy to pollute the environment, high cost, not for special slurry solidification of the discharged soil should not be used. Double pipe grouting method, that is, on the basis of a single tube, Hebei Jet Roofbolter, increase air compressor, wrapped in a slurry with a high pressure gas cutting soil. All rig company Tianjin-strong pile driver, Jet roofbolter wholesale prices, single and double pipe can do, Jet roofbolter sales, which fully hydraulic models walking XPB-20, track-type XPL-50, single double triple pipe construction can be applied.