| 摘要 |
PROBLEM TO BE SOLVED: To provide a groove wall measuring method for an underground continuous wall capable of more easily measuring a groove wall after excavation than a conventional measuring method such as an ultrasonic groove wall measuring method even when a stabilizing liquid is outside of a control range. SOLUTION: A groove wall measuring method of an underground continuous wall uses a position detecting device 15 of an underground continuous wall excavator 1 having a stand 5 arranged on the ground and measuring wires 10 installed by constant tensile force in the underground continuous wall excavator 1 from the stand 5, and uses a measured value of a depth measuring device for measuring an inclination of the measuring wires 10 and the depth of the underground continuous wall excavator 1 by being arranged in a device 3 for suspending the underground continuous wall excavator 1 to calculate a position of the underground continuous wall excavator 1 to measure a completed shape of a groove part 20 formed by excavation from an obtained value. Then, while moving the underground wall excavator 1 by the groove part 20 in a state of stopping excavating operation and mud removal by the underground continuous wall excavator 1, a completed shape of the groove part 20 is measured.
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