Establishing lock jumps at sheet piling walls or piles without removal

摘要

The sensor carries out a signal transmission e.g. using radio, so that the condition or the remaining of the sensor is detected or measured and indicated. With the positive evidence from the sensor, a lock jump is established and signalled.A wireless sensor is so arranged driven in at the foot of each piling sheet of pile wall, that with driving in of successive sheets, with fault free closed lock, meets the sensor and disturbs or ejects it. A radio operated monitoring unit is provided at the earth surface or the sheet sinking machine, which responds to the condition or the whereabouts of the sensor.