PROBLEM TO BE SOLVED: To provide a soil crusher which is suitable for crushing and agitation work of a surface layer soil in a construction site upon soil paving construction.;SOLUTION: In a soil crusher 1 in which an operation rotor 10 is attached to a rotor drive shaft 8 provided inn a walking type self-propelling vehicle body 2, the operation rotor 10 is configured by mounting a plurality of straight bar-shaped operation claws 14 on the peripheral wall of a cylindrical rotor body 11. According to the configuration described above, the operation rotor 10 is caused to roll on a surface layer soil Ga on a construction site, so that the surface layer soil Ga is crushed and finely granulated by pushing and scraping of each operation claw 14 of the operation rotor 10. Furthermore, the peripheral wall of the rotor body 11 comes into contact with the surface layer soil Ga so as to prevent the operation rotor 10 from excessively sinking and the depth of crush by the operation claw 14 is regulated by the amount of projection of the operation claw 14, a synergistic effect of both of which can automatically and precisely regulate the depth of crush of the surface layer soil Ga, i.e., the thickness of soil paving, thereby achieving the soil paving with high precision and reliability.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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