"SHIMANTO RIVER" in Kochi Prefecture is known as “Japan’s last remaining limpid stream.” The Agency for Cultural Affairs has designated the entire Shimanto River basin as an “Important Cultural Landscape.”
Kochi Marutaka has been developing foundation engineering technologies for the changing needs of the construction industry since it has been established in 1967.
Supported by MECH Enterprize which is dealing PTC products and delivering high quality after sales services, Kochi Marutaka has replaced and reinforced bridge piers at SHIMANTO RIVER. A vibrodriver 16HFV with variable moment has been used to pull-out corroded tube pile from under water.
The variable moment technologies allowed to use a telescopic cranes without having vibration at the boom. The corroded pile was brittle and just the right quantity of vibration have been applied to the piles, thanks to variable moment vibrodriver capabilities, so as to extract the piles without breaking it.
Moreover, to protect “SHIMANTO RIVER” in the unluckily event of an oil spill, PTC vibrodriver has been used with biodegradable hydraulic oil, with exceptional performance in terms of lubrication and biodegradability.
Thanks to combined forces of Kochi Marutaka, MECH Enterprize and PTC, “SHIMANTO RIVER” now benefits from a renewed and reinforced bridge.