The rotary jet drill is mainly used in the process of using its single, double and triple pipes and high-pressure resistant nozzles to build three-dimensional concrete reinforcement layer under the stratum.

The rotary jet drill can flexibly spray three kinds of fluids: mortar, air and water according to the hardness and softness of the stratum.This method has a good effect on treating silt, silty soil, cohesive soil, silt, sandy soil, artificial fill soil and gravel soil.

Application field of rotary jet drill

Foundation reinforcement, soil erosion, tunnel construction, reservoir, dam seepage reinforcement

Grouting method of rotary jet drill

Curtain grouting consolidation grouting power station grouting reservoir dam grouting tunnel anchor grouting etc

Reinforcement principle of rotary jet drill

Jet drilling of high pressure jet grouting method is mainly uses the effective of the nozzle of a drilling rig after grouting pipe drilling soil predetermined position, with high pressure device makes grout or, (air) to be 20 ~ 40 mpa high-pressure jet from the nozzle of the injection, die cutting, disturbance and destruction of soil, drill pipe at a certain speed rising at the same time, the mix slurry and soil grain of forced stirring, slurry after solidification, in the soil to form a cylindrical body of consolidation (i.e., jet grouting pile), to achieve the purpose of reinforcing the foundation or water seepage control.