Steel Work
Steel Work is the creation of steel structures by cutting, bending, and assembling processes.
It is a value-added process involving the creation of machines, parts, and structures from various steel materials.
Segment
The shield method, which is the mainstream of the tunnel construction method
of the city, has made remarkable progress since it was first introduced in Japan
at the Ouhamami Line construction project in 1920.
The scope of the shield method is the tunnels of sewerage, power,
communication, gas, underground waterways, railroads, roads, etc.
The materials required for the shield method are segments, and the products
manufactured by our company are steel segment and synthetic segment
(Exterior is steel segment and interior is filled with cement along with rebar).
Steel Segment
The steel segment is in the shape of a box, and generally has excellent economic efficiency in small-diameter tunnels; it is excellent in terms of load-bearing capacity, manufacturability, and workability even in medium- and large-diameter tunnels. Therefore, it is often used in special area such as rapid curves and openings that are difficult to apply concrete segments. Its advantages include uniform material, strength, good weldability and relatively light weight, making it easier for machining or modification at the site.
Rectangular Steel Segment(Passenger Tunnel from a Subway Station to Basement of a Building)
Round Steel Segment(Tunnel for Highway)
Synthetic Segment
The steel segment is in the shape of a box, and generally has excellent economic efficiency in small-diameter tunnels; it is excellent in terms of load-bearing capacity, manufacturability and workability even in medium- and large-diameter tunnels. Therefore, it is often used in special areas such as rapid curves and openings that are difficult to apply concrete segments. Its advantages include uniform material, strength, good weldability and a relatively light weight, making it easier for machining or modification at the site.
AQCS & Industrial Equipment
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ESP Casing
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B/F Casing
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Steel Structure
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Round Duct
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Square Duct
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Hopper
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Stack
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GGH
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Tank
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Gas Scrubber
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Ash Handling
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Wet ESP Casing
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Gas Cooler
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VBF
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Vessel Scrubber
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Tar ESP
References
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Synthetic Segment
- Sendai Subway East-West Line: Shindera Cite, Japan (2011)
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Steel Segment
- Hachioji Shield Work, Japan(2018)
- Tokyo Gaikaku B&F Ramp, Japan (2020)
- Toranomon Subway Station to Mori Building, Japan (2018)
- Hiroshima Expressway No.5, Japan (2020)