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 high-pressure injection pump jet grouting, jet grouting rig manufacturer, model: GZB-40C. 2, Jet grouting rig main role is to pipe (on the bottom nozzle) to the design depth, Suihua jet grouting rigs, 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 pipe, the bottom with a special nozzle, self-propelled rotary spray rig, the nozzle diameter is generally 2.0mm-3.0mm, the actual use of 2.0mm-2.5mm. [Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] common failings of governance to enhance the operation shotcrete cement slurry orifice gone out, there is a large gap in the soil, the loss of the slurry, causing orifice not take slurry, so The slurry flows should not gap at the reinforcement. Governance measures: shotcrete lifting operation, to observe the situation orifice take slurry, if not take the entire hole plasma, should immediately identify the reasons for processing. Other matters reference design drawings, specifications and project department regulations.