Single-tube rotary jet grouting equipment used mainly high-pressure injection pump, jet grouting rig, grouting pipe (bottom with nozzles), transport slurry pipe. 1, high-pressure injection pump is critical equipment, through its high-pressure cutting the soil to make a slurry, to spray the required range, the formation of a certain diameter pile. At present, use of high-pressure pump Co., Ltd. Tianjin strong energy production of special Jet high-pressure injection pump, model: GZB-40C. 2, Jet grouting rig main role is to pipe (on the bottom nozzle) to the design depth, jet grouting pile anchor rig sales, lifting and rotating grouting pipe to meet the design requirements. At present, use of Tianjin-strong pile production models XPB-20, XP-50A, SP-30AB, XPL-50 crawler drills. 3, the output slurry pipe to rubber hose or steel pipe inner diameter of the inner diameter of Φ21 Φ19, and able to withstand the pressure of 45MPa or more. Its main role is to connect the high pressure pump and jet grouting rig, transport slurry. 4, grouting pipe is generally used Φ50 drill, with a special nozzle at the bottom, Qinhuangdao Jet pile anchor rig, the nozzle diameter is generally 2.0mm-3.0mm, the actual use of 2.0mm-2.5mm. Churning process, often there is a certain amount of soil particles, along with a portion of the slurry wall grouting pipe out of the ground, through the mud spillover observation, you can keep abreast of the soil conditions determine the approximate effect Jet and determine reasonable parameters, etc., based on experience, take the pulp (with a soil particles, water and slurry) of less than 20% grouting is normal, more than 20%, or completely take slurry, the reasons should be identified promptly take appropriate measures .