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    • 37. 发明专利
    • CONTROL METHOD FOR DITCHER
    • JP2001003383A
    • 2001-01-09
    • JP17304099
    • 1999-06-18
    • NISHIMATSU CONSTR CO LTD
    • SUGIMURA MASAJINISHI TAMOTSUOGURI TOSHIO
    • E02F5/06E02F3/16E02F5/14G01C9/00
    • PROBLEM TO BE SOLVED: To improve the measuring accuracy of an inclination by providing an initializing method, in which the mounting error of an inclinometer, the error of a 0-point set or the like is hardly contained, while conducting control to the inclination even in an underground section. SOLUTION: A chain drive type cutter 5 is supported while inclinometers 4 installed into a plurality of each cutter post 3 connected in the vertical direction are rotated at 360 deg. around shafts mounted along the vertical direction in each cutter post 3, and the initializing values of each inclinometer are determined by analyzing functions obtained from the angles of rotation (x) and the output values (y) of the inclinometers when the angles of rotation turned along the shafts in the inclinometers 4 are represented by (x) and the output values of the inclinometers at that time by (y). The inclinations of each cutter post 3 are measured by each inclinometer 4 in which setting is conducted at the obtained initializing values, and the inclinations are controlled at every cutter post 3.