[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] high pressure grouting pile foundation reinforcement construction preparation construction: clean up the site before construction area, land leveling; marking the location of underground pipelines and underground structures; measured according to the design discharge axis Yingkou Jet rig manufacturers, measuring put specific holes and make clearly marked Yingkou Jet rig manufacturers, drawing floorplan hole pattern, prepared hole number; then excavation circulation tank, mud pools, jet grouting rig set up rail Yingkou factory, leveling table After starting with a card aligns rear fixing holes and ready to spud. Soft Rock Tunnel horizontal jet grouting methods: by controlling the first bracket and the second supporting frame synchronization of the movable body about a longitudinal axis to vary the spray boom of construction location, repeat steps ( 1) to (3) to obtain a plurality of first type drilling as well as a first-shaped stiffening member is inserted in a first type of the pile, so that adjacent to the first type of pile in the radial direction partly overlap Yingkou spin spray rig manufacturers, so that the plurality of first type pile at least part of the edge of the tunnel to be formed to construct the first curtain system; (5), by controlling the first bracket and the second support frame synchronizing said The movable body about the longitudinal axis to vary the position of the spray boom construction, repeating steps (1) to (2), in order to obtain a further plurality of first type and a first-type pile bore, such that adjacent to the first type of pile overlap in the radial direction, so that the plurality of first type pile at least part of the edge of the tunnel to be formed to construct the second curtain system, the first curtain system in conjunction with the second curtain system into a monolithic curtain system