After the high pressure grouting pile reinforcement soft soil foundation as common method is the use of grouting pipe rig to drill with a special nozzle to a predetermined depth, anchoring Jet crawler rig, with high-pressure equipment so as weak soil consolidation agents slurry or water become 20mpa more high-pressure jet ejected from the nozzle out, single and double three-pipe jet grouting rig anchor, impact damage weak foundation soil, Qinhuangdao jet grouting rig anchor, and with the active pipe rotation and upgrading the level of anchoring Jet rig, driven at a constant speed of rotation grouting pipe and upward, forced mixing the slurry with the soil particles, mixed with the soil particles in the slurry body to be set and harden to form a high strength, low compression of the soil complex. [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product]