[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 lifts the concrete slab back into position 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 slabs, the material can flow into small spaces and expand, allowing for complete filling without any voids. ■ Features of the Upcon Method 1. Short construction period: The construction time is 1/10 of conventional methods. 2. No need to stop operations: Heavy equipment or material relocation is unnecessary. 3. Comprehensive high technical capability: 100% in-house staff. 4. Compact construction system: Quick restoration of the current state is possible. 5. Reduced risk of re-sinking compared to conventional methods. We provide total support from on-site surveys to 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