[Construction Examples] Kumamoto Area Maintenance Work and Disaster Recovery Work / Void and Cavity Filling Work
Disaster recovery and emergency response for roads! 100% filling of gaps and voids with polyurethane resin.
We would like to introduce a case of "preservation work and disaster recovery work" and "void filling work" conducted at the Higo Tunnel in Yamae Village, Kumamoto Prefecture. In early July 2020, record heavy rainfall in the Kumamoto Prefecture area caused large-scale river flooding and water damage, particularly along the Kumagawa River. We received a construction request from Nishi-Nihon Expressway Maintenance Kyushu Co., Ltd., and carried out emergency work to fill voids and cavities under the concrete pavement slabs that had lifted due to water pressure from the rain disaster, within the section of the tunnel that was closed to traffic. 【Case Overview】 ■ Construction Location: Higo Tunnel, Yamae Village, Kumamoto Prefecture ■ Construction Area: 76m² for the passing lane, 76m² for the driving lane ■ Construction Period: 3 days *For more details, please refer to the PDF document or feel free to contact us.
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【Construction Details】 ■ Inject polyurethane resin into the gaps and voids beneath the concrete pavement slabs. ■ To achieve complete filling beneath the entire concrete pavement slabs, level management will be conducted to ensure slight movement or a 1mm rise at each injection hole. ■ After injection, filling confirmation will be conducted using a CCD camera to ensure that the polyurethane resin is densely filled, completing the construction. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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We carry out construction to correct the sinking, tilting, steps, and gaps in concrete floors caused by uneven ground subsidence in buildings such as factories, warehouses, stores, and general residences, using our unique "Upcon Method" with completely non-fluorinated urethane resin and small machinery. Additionally, we are engaged in public works that utilize technologies developed through various research and development projects to restore the functionality of aging social infrastructure such as roads, airports, ports, and agricultural waterways. ■ Features of the Upcon Method 1. Short construction period: The construction time is 1/10 of conventional methods. 2. No interruption of operations: No need to move machinery or cargo. 3. Comprehensive high technical capability: 100% in-house employees. 4. Compact construction system: Quick restoration to the current state is possible. 5. Reduced risk of re-subsidence: Lower risk of re-subsidence compared to conventional methods. Our in-house staff provides total support from on-site surveys across the country to repair planning and construction, taking full responsibility. Our specialized and experienced in-house staff will propose the optimal repair plan tailored to your site. Upcon Co., Ltd. was newly listed on the Nagoya Stock Exchange Next Market on December 26, 2022.