Sensor for SCP method, casing pipe for SCP method, sand pile strength evaluation method and construction management method of SCP method

摘要

To provide a sensor for SCP method which can check and evaluate a sand pipe strength at real time during construction by a sand compaction pile method (SCP method), a casing pipe for SCP method having the sensor, and a sand pipe strength evaluation method and a construction management method of SCP method using the sensor.SOLUTION: A sensor 20 for SCP method includes a plurality of electrodes 21 to 24 and 25 to 28 which are aligned in a diameter direction below a casing pipe 10 for SCP method, in which the plurality of electrodes are provided so as to contact an upper end face SS of a sand pipe SC established on the ground by the casing pipe, measure a specific resistance value inside the sand pipe with a predetermined depth from the upper end face of the sand pipe, and evaluate the strength of the sand pipe on the basis of the measured specific resistance value.SELECTED DRAWING: Figure 1