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VIBRATION OF ADJACENT BUILDING DUE TO IMPACT PILE DRIVING BY DIESEL HAMMER

Victor Veshnyakov

Abstract

Pile driving technology remains the most widespread method in Arkhangelsk where the presence of soft soils is an engineering-geological feature. Additionally, high quality of the pile shaft in the soft soil is guaranteed by using precast piles. New construction is mainly carried out next to the adjacent buildings. There are situations when pile driving by hammer can be safe for adjacent buildings. The monitoring of pile driving by diesel hammer was carried out at one of the sites in the city. The distance from the building to the front row of piles was only 1.05 m. Vibration parameters were measured with triaxial accelerometer CMG-5 with continuous recording of the data by logger GSR-24 which made it possible to fulfill a detailed analysis of the pile-sinking process. The intensity of propagating ground vibrations induced by pile driving depends on the penetration of the driven pile. The vertical and transverse vibrations of the adjacent building due to impact pile driving by diesel hammer depend on the position of the hammered pile relative to the central axis of the outer wall. The longitudinal vibrations of the adjacent building are almost independent of the position of piles located at the same distance from the outer wall of the building. Taking into account the obtained results, recommendations for piling are given.

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DOI resolver: doi.org/10.5593/sgem2019/1.2/s02.073

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