To provide a self-propelled soil improving machine which prevents deterioration in quality of improved soil by positively fixing a mixing ratio of soil and soil improving agent to a constant value.
The self-propelled soil improving machine is comprised of a transporting conveyor 13 stretched from below a hopper 12 to a mixing device 47; a screw feeder 29 for feeding the soil improving agent to the soil conveyed by the transporting conveyor 13; a height sensor 22 and a rotational speed sensor 25 for detecting an amount of the soil conveyed by the transporting conveyor 13; a mixing ratio control device 75 for arithmetically operating a required amount of the soil improving agent, based on a detected value, and controlling a feeding amount of the soil improving agent by the screw feeder 29; and a discharging conveyor 59 extended from below the mixing device 47 to the outside of a main body frame 3 on a side opposite to the mixing device in a longitudinal direction. According to the soil improving machine, the mixing ratio control device 75 compares the calculated required amount of the soil improving agent with a feeding capacity of the screw feeder 29, and controls a transporting speed of the transporting conveyor 13.
YAMAMOTO YASUHARU
OZAWA HAJIME
NISHIDA TETSUYA
ENDO ICHIO
