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Pile driving technology remains the most widespread method in Arkhangelsk where the presence of soft soils is an engineering-geological feature. There are situations when pile driving by hammer can be safe for existing buildings. Using two hammers allows to accelerate foundation works but it can damage the adjoining buildings. The monitoring of pile driving by two diesel impact hammers was carried out at one of the sites in the city. Vibration parameters were measured with triaxial accelerometer CMG-5 with continu...