[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] High Pressure Injection laws generally provide a high-pressure jet grouting method for handling silt, silty soil, flow plastic, soft plastic plastic clay soil, silt, sand , loess, plain fill and gravel soil and other foundations. When the soil contains more large-size stone, a large number of plant roots or have a higher organic matter, and groundwater flow rate is too large and has been gushing water projects, should determine their suitability based on the field test results. 2 High Pressure Injection Method can be used for both new construction and reinforcement of building foundations, deep excavation, soil reinforcement subway and other projects or waterproof. High Pressure Injection Method 3 stars Jet, fixed spray jet and swing three categories. According to project needs and soil conditions, respectively single-tube method, twin-tube method and the three methods. Reinforcement can be divided into a columnar shape, the walls, strip and block. Four pairs of existing buildings to collect information on the history and current situation, the neighboring buildings and an underground thing, etc. when developing the high-pressure jet grouting program. 5 High Pressure Injection scheme determined, should be combined with engineering conducted field trials, experimental construction or to determine the construction and process parameters based on engineering experience. [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] single-tube high-pressure grouting Piles is the use of drilling rigs and other equipment Hakusan three-pipe high pressure rotary jet pile, the special nozzle mounted on the bottom side of the grouting pipe, After a predetermined depth into the soil, using high-pressure mud pump generator to a pressure of about 20Mpa ejected from the nozzle in the slurry out of the direct impact of the destruction of soil, but by the rotation of the grouting pipe and promotion campaign to make the soil from caving soil down to change Baishan three pipe high pressure rotary jet pile, part of the fine particles with the slurry out of the ground, and the rest under the action of soil particles impinging force, centrifugal force and gravity force of Hakusan three tube high pressure jet grouting pile, and slurry mixing, according to a certain proportion of the slurry and soil quality size Hakusan three pipe high pressure rotary jet pile, regularly rearranged, after a certain time solidified, it forms a cylindrical body consolidation in the soil.