[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] triple tube rotary jet grouting material and grouting materials in cement formulation requirements as the main material, and adding different additives, may have a quick-setting early strength, antifreeze, etc. performance. The type of cement slurry more, with the geological conditions and for different purposes Kaifeng small ground handling rigs, slurry material vary. Ordinary type, general engineering applicable to no special requirements. The general strength grade Portland cement 32.5 above ground treatment Kaifeng small rig, no additives, water-cement ratio of 0.8 to 1.5, commonly 1.0. 28-day compressive strength of consolidation up 1 ~ 2Mpa. [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] high pressure grouting pile foundation reinforcement construction of drilling: drilling rig foundation treatment Kaifeng small hole drilling machine according to the site, using the time on the ground or underground injection Accessible vertical drill Withdrawing Slurry method this method, which is characterized by: a uniform Hole, vertical drilling, easy to operate and control the slurry diffusion is more evenly distributed, strengthening good sealing effect. According stratigraphy drilling using high pressure water into the hole or the use of diamond drilling technology into the hole, a hole diameter Ф91-Ф130mm Kaifeng small ground handling rigs, drilling depth of not less than the design depth and to determine the depth of the pilot hole prevail. Hole control position error is less than 20mm, high-pressure water into the hole when the pressure control between 18-22MPa, when using the control mud weight alloy drill diamond drilling between 1.05 to 1.2, to ensure the integrity of the cell wall sex.