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Measuring device for SCP method, casing pipe for SCP method and construction management method of SCP method
Measuring device for SCP method, casing pipe for SCP method and construction management method of SCP method
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机译：用于SCP方法的测量装置，SCP方法壳管方法和SCP方法施工管理方法
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摘要
To provide a measurement device for SCP method which can measure a diameter of a sand pipe during construction by an SCP method and can also measure a sand pipe strength, a casing pipe for SCP method having the measurement device, and a construction management method of SCP method using the measurement device.SOLUTION: A measurement device 20 includes a penetration rod 11 which is arranged at the center of a lower inner periphery of a casing pipe 10 and is extensible in an axial direction, an actuator 15A for projecting or evacuating the penetration rod, and elastic wave transmission/reception parts 13 and 14 provided on the tip vicinity of the penetration rod, projects the penetration rod from an upper end face SS of a sand pipe SC established on the ground by the casing pipe 10 with the actuator, penetrates the penetration rod into the sand pipe, allows the elastic wave transmission/reception parts to transmit elastic waves T1 and T2 in a radial direction of the sand pipe and to receive reflection waves R1 and R2, and thereby measures a diameter of the sand pipe.SELECTED DRAWING: Figure 3
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