マリンワークス List of Products and Services

Leave the deterioration survey of concrete, steel sheet piles, and steel pipe piles, which is important data for understanding the condition of harbor facilities, to our experienced company. ■ Deterioration Survey of Concrete Structures - Visual Inspection (Deterioration, wear, cracks, rust stains, scouring, rock attachment conditions, etc.) - Concrete Core Sample Collection and Testing (Carbonation, chloride ion penetration, strength testing) - Investigation of Reinforcement Corrosion in Concrete ■ Deterioration Survey of Steel Sheet Piles and Steel Pipe Piles - Visual Inspection (Deformation, corrosion conditions, etc.) - Detailed visual inspection after removing attached organisms - Thickness Testing (Using ultrasonic thickness gauge) - Deterioration Survey of Ancillary Equipment (Investigating the deterioration conditions of fenders, mooring posts, etc.) ■ Data Organization and Deliverables Creation (Digital Delivery) - Creation of various inspection and diagnosis record sheets and photo archives - Visualization of survey results using CAD - Video editing During the survey, we will conduct appropriate investigations while maintaining close communication with our clients. With a motto of safety and reliability, we will respond with our extensive experience and technology, so please feel free to consult with us.

• Bridge Construction
• Work boats, research vessels, underwater work machines
• Boring Company

Our company, which specializes in marine construction and operations, offers "diving work." For various underwater construction projects such as "underwater formwork construction" and "submarine cable laying," please feel free to consult us. 【Services Offered】 ■ Diving Work ■ Seawall Construction ■ Pier Construction ■ Underwater Formwork Construction ■ Pier Foundation Work ■ Dredging Work ■ Caisson Construction ■ Pier Construction ■ Installation of Various Measuring Instruments ■ Submarine Cable Laying ■ Underwater Ecological Surveys ■ Underwater Welding ■ Underwater Cutting ■ Emergency Repairs of Steel Structures ■ Corrosion Protection Work ■ Maintenance and Inspection Inside Culverts ■ Various Diving Works as a Whole *For more details, please refer to the PDF document or feel free to contact us.

• Work boats, research vessels, underwater work machines
• others

This catalog introduces the "Breakwater Improvement and Reinforcement Work" conducted by Marine Works Co., Ltd., which mainly engages in construction and operations in the field of marine work. Our company utilizes years of experience and achievements to implement underwater construction related to the planning of construction methods and materials in port construction, as well as the new construction, repair, and improvement of various structures. [Contents] ■ Construction Details ■ Construction Procedures ■ Process Management ■ Shape Management ■ Quality Control ■ List of Underwater Construction Techniques *For more details, please refer to the PDF document or feel free to contact us.

• Work boats, research vessels, underwater work machines
• others

Our company, which specializes in marine construction and services, offers "diving surveys." For various diving surveys such as "seabed sampling work" and "underwater ecological surveys," please feel free to consult with us. 【Services Offered】 ■ Diving Surveys ■ Magnetic Exploration ■ Underwater Exploration ■ Underwater Photography ■ Underwater Ecological Surveys ■ Corrosion Surveys ■ Seabed Sampling Work ■ Culvert Maintenance and Inspection ■ Observation Buoy Maintenance and Inspection ■ Thickness Surveys *For more details, please refer to the PDF document or feel free to contact us.

• Work boats, research vessels, underwater work machines
• Environmental Survey
• others

This catalog introduces the "Structural (Steel and Concrete) Deterioration Investigation" conducted by Marine Works Co., Ltd., regardless of whether it is underwater or in the air. What we value most is the detailed examination of investigation methods. By leveraging our extensive experience in port construction, we believe that making proposals tailored to the objectives and specifications of the work leads to "safe," "reliable," and "efficient" investigations. From various investigations and data organization to the creation of deliverables, you can trust our company, which values communication with customers. [Contents] ■ Flow of Investigation ■ Details of Structural Deterioration Investigation ■ Deliverable: Inspection Diagnosis Record ■ Deliverable: Pitting Investigation Results ■ Deliverable: Deformation Photo Ledger ■ Deliverable: Thickness Measurement Record 　and more *For more details, please refer to the PDF materials or feel free to contact us.

• Work boats, research vessels, underwater work machines
• Structural Survey
• Environmental Survey

Marine Works Co., Ltd. is a company primarily engaged in construction and operations in the field of marine activities. We consistently respond to a wide variety of requests, including diving construction and surveys, through planning, execution, and management. We have a team of experienced and knowledgeable personnel, and we incorporate the latest technological information to provide the best equipment and meet your expectations. 【Business Activities】 ■ Diving Construction ■ Diving Surveys ■ Marine Operations ■ Civil Engineering ■ Scaffolding and Earthwork ■ Stone Work ■ Piping Work ■ Steel Structure Construction ■ Dredging Work ■ Painting Work ■ Water Supply Equipment Construction *For more details, please refer to the PDF document or feel free to contact us.

• Work boats, research vessels, underwater work machines
• others

Marine Works Co., Ltd. possesses a variety of diving equipment, including diving support vessels, various compressors, and essential tools for examining structural deterioration such as hydraulic core drills, underwater rebar detectors, and state-of-the-art underwater drones. Our work requires the skills of divers, but it cannot be accomplished without the necessary equipment. We will continue to expand our knowledge and prepare equipment tailored to the needs of the field. 【Main Equipment】 ■ Diving Support Vessels: 2 units ■ Workboats: 2 units ■ Underwater Drones ■ Land Drones ■ High-Pressure Compressors: 1 unit ■ Low/Medium Pressure Compressors: 12 units ■ Underwater Imaging Equipment: 8 units ■ Full HD Underwater Imaging Units: 2 units ■ Portable Recompression Chamber: 1 unit ■ Hydraulic Unit (Core & Grinding): 1 unit ■ Land Core Machines: 2 units ■ Ultrasonic Thickness Gauges: 3 units ■ Fiber Scope Imaging Unit: 1 unit ■ Underwater Welding Equipment: 12 units ■ Underwater Cutting Equipment: 12 units *For more details, please refer to the PDF document or feel free to contact us.

• Work boats, research vessels, underwater work machines
• others

Our company, which specializes in marine construction and services, offers "vessel operations." From "pilotage services" to "vessel towing services" and "marine maintenance," please feel free to consult us regarding any type of vessel operations. 【Services Offered】 ■ Towage Services ■ Pilotage Services ■ Vessel Towing Services ■ Vessel Maintenance and Inspection Management ■ Seabed Management ■ Observation Buoy Maintenance and Inspection ■ Marine Maintenance ■ Offshore Maintenance *For more details, please refer to the PDF document or feel free to contact us.

• Work boats, research vessels, underwater work machines
• others

We offer "super high-brightness phosphorescent materials" that absorb light during the day and emit light at night for our 'guidance signs.' Phosphorescent guidance signs do not stop functioning due to power outages or disconnections, ensuring reliable performance in emergencies. Since they do not require electricity, installation is easy and contributes to eco-friendly activities. By using highly durable materials, they can also be installed outdoors. The light emission performance complies with the latest disaster prevention standards, contributing to safety during large-scale disasters where there is a risk of power loss. We have a lineup of products, including evacuation signs for walls and floors, as well as "outdoor stair phosphorescent line guidance products" that illuminate edges (stair steps) and handrails until dawn to ensure safety. *For more details, please refer to the PDF document or feel free to contact us.

• Disaster prevention supplies
• Street lights
• Road signs and road accessories