[Construction Case] Fukushima Prefecture, Soma Port Port Maintenance Management Work (Quay Restoration)

basic information

■ What is the Upcon Method? The Upcon method involves drilling small holes with a diameter of 16mm into concrete pavement slabs that have experienced sinking, unevenness, tilting, or gaps. While continuously monitoring the level in millimeter increments, polyurethane resin is injected. The resin injected beneath the slab immediately expands due to a chemical reaction, compacting and strengthening the ground, which improves the bearing capacity and pushes up the concrete slab to correct it using the pressure from the expansion. The required strength is achieved in about 120 minutes, significantly contributing to a shorter construction period. Additionally, if there are gaps beneath the concrete pavement slab, the material can expand and fill even small spaces, ensuring complete filling without voids. ■ Features of the Upcon Method 1. Short construction period: The construction time is one-tenth that of conventional methods. 2. No need to stop operations: Heavy equipment or moving loads is unnecessary. 3. Comprehensive high technical capability: 100% in-house employees. 4. Compact construction system: Quick restoration to the original state is possible. 5. Reduced risk of re-sinking compared to conventional methods. We provide total support for on-site investigations, repair planning, and construction, all handled responsibly by our in-house staff. Our specialized and experienced staff, trained in the field, will propose the optimal repair plan tailored to your site.

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Applications/Examples of results

Concrete pavement slab settlement correction work