Owned Vessels & Equipment
Cable laying, burying, and transport barge services
Asahi
Capable of cable laying operations, marine civil engineering, and a wide variety of other applications.
“Asahi” can maintain accurate vessel position control using the DPS, even under conditions with external factors such as tidal currents, wind, and waves.
Additionally, it is capable of supporting a variety of scenarios in marine civil engineering and many other applications, starting with cable laying operations.
The deck layout can be altered as required by the specific project.
- A dedicated barge for laying and burying submarine cables and water pipes.
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Equipped with the DPS for stationary positioning and a standard turntable. The dedicated mothership for the large ROV “Ditch Queen” specialized in burial and surveying.
After laying cables, subsequent burial construction by the “Ditch Queen” is possible.
Like “Awaji,” it operates as a multipurpose DPS work barge. - Capable of automatically laying cables along a preset route.
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The Dynamic Positioning System (DPS) is a system that automatically controls the position and orientation of a laying/work barge against external forces (tidal currents, waves, and wind) by computing control signals to each thruster.
Automatic laying is possible by inputting a preset route into the DPS. Positioning uses the Differential Global Positioning System (DGPS), and azimuth measurements use a gyrocompass.
Introduction of “Asahi”
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KICS4500/5000 -
Thruster -
800 kVA generator -
1,260-ton turntable -
Work class ROV -
120-ton crawler crane -
Laying and burial management software EIVA -
Accommodations
Outline
- Applications
- Submarine cable and water pipe laying, burial, repairs, removal, and other marine-related work in general
- Type of vessel
- 80M-type steel barge (non-self-propelled)
- Class of vessel
- NK
- Classification Code
- NS
- Nationality
- Japan; Port of Registry: Awaji, Hyogo Prefecture
- Sailing area
- Coastal
- Loading capacity
- 3,000-ton loading
- Material
- Steel
- Length
- 80.03 m
- Width
- 24.00 m
- Depth
- 4.50 m
- Draft
- 5.50 m
Main equipment
- Complete set of fitting-out materials for laying and other purposes
- Construction or mooring anchors ranging from 1 to 5 tons, configured according to the construction method and work content.
- Turntable
- 1260-ton type (Outer diameter: 19,771 mm; Inner diameter: 7,229 mm)
- DPS equipment
- 1,200 PS × 4 units; control device KAWASAKI KICS-5000 (4500)
- Stern sheave
- Radius: 4.00 m
- Crawler crane
- Manufactured by Kobelco Cranes Co., Ltd., Model 7120 (120-ton lift)
- Navigation winch and burial, advancement winch
- Various types, from 5 to 20 tons
- Generators
- 800 KVA × nine units, 220 KVA × two units, 90 KVA × one unit
- Material storage
- 60 ㎡ × two stores
- Communications equipment
- International VHF
- Accommodations
- Nineteen private rooms and 20 beds (capsule rooms), two female-only private rooms (with shower and toilet), six shower rooms
- Fuel tank
- Diesel: 4 cubic meters; Heavy oil: 200 cubic meters
- Water tank
- 200 cubic meters
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