QUALITY MANAGEMENT METHOD OF MIXING CONSTRUCTION METHOD USING HIGH PRESSURE INJECTION

摘要

To provide a management method to determine whether or not an amount of solidification material meets required quality of an improvement body through determining in real time the amount of the solidification material which the improvement body includes when constructing the improvement body.SOLUTION: In a management method managing quality of an improvement body constructed by a mixing construction method using high pressure injection to construct the improvement body (K) through injecting solidification material into the foundation from a rotary injection nozzle (1), the management method of the present invention comprises: a process determining the solidification material content in slime through analyzing the slime (sludge) flown out to the ground side with an analysis device (2: for example, a device having a viscosity measuring function, a specific gravity measuring function, or a component analysis function); and a process determining the solidification material content in the improvement body (K) in accordance with the solidification content in the slime determined in the previous process.SELECTED DRAWING: Figure 2