The Sozokan is the first structure of its kind in the world, employing steel sheet piles as the main structural materials and using confined ground seismic dampers to create a steel spread foundation over soft ground.
Confined Ground Seismic Damper
This machine was born in 1975 to be the first in the world to practise the press-in principle discovered by the company's founder, Akio Kitamura, and it led to the realisation of an environmentally friendly construction method that eliminates the vibration and noise of piling work, which was said to be the leading cause of construction pollution.
In August 2021, the first SILENT PILER™ KGK-100A was certificated as Mechanical Engineering Heritage by The Japan Society of Mechanical Engineers. Kochi-born piling machine "SILENT PILER" recognized as one of Japan's leading machines.
Examples of the exhibited machines
Man-powered Excavation Method
Impact Driving System
Vibro-driving System and Inner Excavation Method
SILENT PILER for 400-mm wide U sheet piles
SILENT PILER for Hard Ground
Wide Range of Applicable Pile Types
Other piling machines developed by GIKEN