The KPZ series diesel-driven concrete jetting machine utilizes diesel engines as the power source, compresses air, and transports concrete mixtures at specific ratios through pipes for high-speed jetting onto the sprayed surface, where they solidify and harden to form a concrete support layer. In recent years, shotcrete technology has been widely used in construction, highway and railway tunnel construction, mine tunnel development, and slope reinforcement due to its simple process, unique effects, cost-effectiveness, and rapid construction speed.