[Construction Example] Akita Prefecture Port Facility (RTG Running Path) Repair Work Settlement Correction
Port facility quay disaster recovery work
The Upcon method, which allows for modifications without breaking existing concrete pavement slabs and within a short construction period, has been widely adopted in public works such as roads and airports as a maintenance repair method. This time, we will introduce a case of subsidence correction work for the RTG (rubber-tired gantry crane) running path slab at a container terminal within a port. Over time, the RTG running path slab had subsided, causing a step to form in the adjacent vehicle running path. Additionally, unevenness occurred in the longitudinal direction, which affected the operation of the RTG and snow removal work. Compared to other methods, the Upcon method was chosen because it allows for construction without breaking the RTG running path slab and without halting operations during the short construction period. 【Site Information】 Construction Area: 258 square meters Maximum Correction Amount: 57 mm Construction Period: 6 days (nighttime) For detailed explanations and visuals of the construction, please refer to the PDF download below.
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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 subsidence, 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, and using the pressure from the expansion to lift and correct the concrete slab. 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 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 that of conventional methods. 2. No disruption to operations: There is no need to move heavy equipment or materials. 3. Comprehensive high technical capability: 100% in-house employees. 4. Compact construction system: Quick restoration of the current state is possible. 5. Reduced risk of re-subsidence compared to conventional methods. We provide total support, including on-site surveys, repair planning, and construction, with our own staff taking full responsibility. Our specialized and experienced in-house staff will propose the optimal repair plan tailored to your site.
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Concrete pavement slab settlement correction and void filling work
catalog（6）
Download All Catalogs![[Construction Case Study / Port Edition Vol. 3] Repair Work for Port Facilities: Correction of Subsidence on RTG Travel Path](https://image.www.ipros.com/public/catalog/image/01/359/723873/IPROS56912473679892218552.jpeg?w=120&h=170)
![[Construction Case Study/Port Edition Vol. 1] Port Maintenance Management Work (Quay Restoration) Subsidence Correction and Void Filling](https://image.www.ipros.com/public/catalog/image/01/93a/646469/IPROS7250851689726681210.jpeg?w=120&h=170)
![[Construction Case Study / Port Edition Vol. 2] Onagawa Fishing Port Miyagazaki Quay Disaster Recovery Project](https://image.www.ipros.com/public/catalog/image/01/f20/647656/IPROS5098479422774090087.jpg?w=120&h=170)
![[Construction Case Study / Port Edition Vol. 4] Sendai Shiogama Port (Ishinomaki Area) Hibari-no Chuo Pier Quay Disaster Recovery Work](https://image.www.ipros.com/public/catalog/image/01/6e4/734399/IPROS3107554405782613509.jpeg?w=120&h=170)
![[Road Section] Concrete Pavement Slab Repair Method](https://image.www.ipros.com/public/catalog/image/01/517/569862/IPROS83319363143977941547.jpeg?w=120&h=170)
Company information
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.