Dual fluid injection pump is widely used in tunnels, mines mining face grouting plugging; rock roadway and concrete wall grouting plugging water; tunnel cracks, broken rock, rock reinforcement evacuation; anchor grouting; backfill grouting and to prevent surface subsidence, prevent landslides skid Churning Pile, correct building deflection grouting carried out and so on. XPB-20B jet grouting rig for anchoring walking wide formations. May be different according to the different strata of performance configuration, the maximum output torque up to 2500N · m, maximum pulling Lectra reach 21kN, to choose carbide drill hole rotary drilling, DTH hammer impact rotary drilling, cone drill bit into other technology methods, so that in most formations could use this directly into the hole after drilling rig, and immediately rotary jet pile.