High pressure spraying pile is high pressure rotating nozzles grout is injected into the soil and soil mixing, jet grouting rig mgj50, cement and overlap to form a continuous solid. Construction area of ??small, low vibration, low noise, but easy to pollute the environment, jet grouting anchor rig, high cost, Wuxi jet grouting rig, for a special can not discharge slurry solidified soil should not be used. [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 higher organic matter, Wuqing jet grouting rig, 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.