Polyurethane injection method for tunnel backfill repair with excellent workability.
The "Tn-p Method" is a tunnel repair method designated as a "Technology for Promotion of Utilization" by NETIST. The injection machine's pump sends both Liquid I and Liquid R to the mixing head, where they are mixed through air agitation to form foamed polyurethane (Achilles Airon-R). The injection equipment is very compact, and the filling material is transported in liquid form (in drums) at about 1/40 to 1/12 of the volume after foaming, allowing all materials and equipment to be loaded onto a single 4-ton truck. 【Features】 ■ Excellent workability ■ Compact injection equipment ■ All materials and equipment can be loaded onto a single 4-ton truck ■ Effective for stopping groundwater *For more details, please refer to the PDF document or feel free to contact us.
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【Equipment】 ■ Tn-p injection machine: 1 unit ■ Generator (25kVA): 1 unit ■ Compressor (3.7kW): 1 unit *For more details, please refer to the PDF document or feel free to contact us.
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【Purpose】 ■ Tunnel backfill repair *For more details, please refer to the PDF document or feel free to contact us.
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Sun Road is the Path to the Sun A road that shines brightly and warmly, always the most positive and cheerful path, started in 1978 with such a wish. From traffic safety facilities to slope protection work and building civil structure repair and reinforcement, people around the world are realizing the neglect of material civilization and are trying to return to spiritual civilization. In such times, we aspire to preserve our valuable construction structures without destruction, using environmentally friendly methods for repair and reinforcement, and we are continuously honing our skills and conducting research and development. Focusing on the Hozen method (bridge reinforcement method), we established the Japan Construction Preservation Association in 1999 and are expanding nationwide. Our management philosophy is to help create a better environment to protect the Earth, and we aim to contribute, even in a small way, to the progress and improvement of humanity by working well, thinking well, and studying well, while fostering people and building a company.
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