第一建設工業 List of Products and Services

The "D-flip method" is a temporary cutoff method for repairing and reinforcing bridge piers located underwater, designed for arbitrary depth anchoring. Developed by our company, it aims to reduce the labor and scale of temporary cutoff equipment compared to conventional methods using steel sheet piles, thereby shortening the construction period and lowering costs. By fixing the temporary cutoff equipment at any height (depth) around the existing bridge pier, a dry space can be created without being affected by riverbed conditions (such as soil hardness and protective works) like in steel sheet pile methods, and large heavy machinery operations are also unnecessary. 【Features】 - Miniaturization of temporary cutoff equipment and labor-saving construction - Cost reduction and shortened construction period due to the miniaturization of temporary cutoff - No need for penetration of temporary cutoff materials into riverbed or ground - Not influenced by riverbed conditions (such as soil conditions and protective works) - Manual construction is possible due to the division of components *For more details, please refer to the PDF document or feel free to contact us.

• Special Construction Method

This product is a working platform for high-altitude work vehicles (full-turn lift) that enables efficient inspection of the underside of road and railway bridges, repainting of girders, and measures against peeling. The working platform is narrower at 1.0m compared to standard working platforms, making it easy to access confined spaces. Additionally, it features an extension mechanism (sliding type, up to 1.0m) that allows for an expanded working range according to the working environment. 【Features】 ■ Easy access to confined spaces ■ Expanded working range ■ Work can be performed directly above overhead lines *For more details, please download the PDF or feel free to contact us.

• Foundation construction machinery