The pin foundation is a foundational construction method that protects important natural environments (registered with the Ministry of Land, Infrastructure, Transport and Tourism NETIS).
■Optimal New Foundation Method for Protecting the Natural Environment The Pin Foundation is a foundation method designed for small-scale structures such as boardwalks, bridges, and pavilions. Traditional concrete foundation methods typically involve significant excavation of the ground and the transportation of foundation blocks using heavy machinery. In contrast, the Pin Foundation method does not require heavy machinery and does not necessitate large-scale excavation of the ground surface. This method is ideal for foundations in locations where heavy machinery cannot be brought in or in areas where it is important to protect the natural environment. It is also suitable for weak ground conditions (equivalent N value of 0.5 to 2.0) where conventional methods cannot be applied. This method is registered with the Ministry of Land, Infrastructure, Transport and Tourism's New Technology Information System (NETIS).
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basic information
The pin foundation is a construction method that provides the necessary support for structural pillars by driving small-diameter steel pipes into the ground at an angle through small concrete blocks or brackets. Since there is no need for excavation or opening of the ground to create a foundation or for the entry of heavy machinery, the original natural environment and terrain are preserved even after the installation of walkways and other structures. Additionally, if there arises a need to remove the structure in the future for any reason, the foundation pipes can be easily extracted by hand after dismantling the superstructure, resulting in no environmental destruction associated with the removal.
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Nationally Designated Historic Site: Kanjida Castle Ruins (Kumamoto Prefecture) Nakahara Town, Andoku: Seta no Mizo (Fukuoka Prefecture) Nagano Green Space, Daiyu Saka Pond (Fukuoka Prefecture) Hohashira Forest Botanical Garden (Fukuoka Prefecture) Tsukui Lake Castle Mountain Park Overpass (Kanagawa Prefecture) Matsuda Mega Cave (Okinawa Prefecture) Iriomote Hinai River District Promenade (Okinawa Prefecture) Yanagimizu Spring Water Park (Kumamoto Prefecture) Mangrove Park, Roadside Station Amami City Sumiyo (Kagoshima Prefecture) Okukubi River Promenade (Okinawa Prefecture) Kawaminami Wetland Plant Community (Miyazaki Prefecture) Manko Park (Okinawa Prefecture) Nishikaibashi Park (Nagasaki Prefecture) Yunoko Island Park (Kumamoto Prefecture) Kawachiura Castle Ruins Park (Kumamoto Prefecture) Hanaguri Ide Park (Kumamoto Prefecture) Nishi no Kubo Park (Kumamoto Prefecture) Tachiarai Pond Group (Fukuoka Prefecture) Hibikinada Biotope (Fukuoka Prefecture) Kawaminami Fishing Port (Okinawa Prefecture) Chigo Pond Park (Miyazaki Prefecture) Higashino Pond Natural Park (Kumamoto Prefecture) Ishigamiyama Park (Kumamoto Prefecture) Mikane Pond Park (Fukuoka Prefecture) Moshio Bridge Canal Promenade (Minato Ward, Tokyo) Kushira Town, Nakayama Pond Park (Kagoshima Prefecture) Isshinkyo's Great Cherry Blossom (Kumamoto Prefecture) Ide Town Promenade (Kyoto Prefecture) Historical Park: Maruchijo (Kumamoto Prefecture) Amajafubaru Rural Park (Okinawa Prefecture) Nationally Designated Historic Site: Ikebene Temple Ruins (Kumamoto Prefecture) National Route 390, Miyara Yarabu Tree Line (Okinawa Prefecture) National Okinawa Memorial Park, Ocean Expo Park (Okinawa Prefecture) Kumamoto City Zoo and Botanical Garden (Kumamoto Prefecture) National Seaside Park, Uminaka Road Park (Fukuoka Prefecture) etc...
Company information
■FRP materials that are lightweight, have high strength per unit weight, are corrosion-resistant, and are strong against salt damage. ■Pin foundation bases that do not require heavy machinery and do not need excavation of the ground surface. Our company has introduced these two technologies ahead of other companies in Japan and boasts a wealth of construction achievements. We are involved in the design and construction of bridges, decks, boardwalks, and piers in national parks and theme parks that are well-known to everyone. By partnering with a Dutch company and introducing new technology using FRP materials, we have made it possible to construct long-span FRP bridges, which were previously difficult to achieve. Furthermore, a durability of over 60 years is expected, making this a technology that can open up new markets in the future.
