Appliance for quality inspection of nozzle jet method in foundation soil

摘要

The appliance has a core bit (5), which is driven into the foundation soil, and injection appliances (6). The injection appliance has at least one rotating discharge nozzle which enters the foundation soil with the core bit. The nozzle generates a jet mixed with injection material directed into the soil. The core bit is fitted with measurement devices for measuring the radial spread of the material (7) in the jet from the nozzle. Equipment is provided to evaluate the recorded measurements. The measurement devices can be equipped with radar or ultrasonic transmitters