DK Shield Method   Retaining the face perfectly by muddy soil
	Rheological Foam Shield Tunneling Method   Rheological foams control all types of soil
	Extruded Concrete Lining Method   Constructing high-quality linings / Providing high cost performance
	Multi-circular Face Shield Method   Offering diverse tunnel cross sections using the mechanical properties of a circle
	DOT Tunneling Method   Contributing to effective use of a wide range of underground spaces
	Enlargement Shield Tunneling Method   Expanding space efficiently / Offering wide variations of construction methods
	Rotating Shield Method   Multi-directional tunneling method greatly increases construction efficiency
	Horizontal & Vertical Variation Shield Method   Freely spiraling or separating a tunnel of multi-circular cross section
	Mechanical Shield Docking Method   Mechanically docking Method
	DPLEX Shield Method   Appropriate for long-distance excavation of tunnels of large cross section
	Chemical Plug Shield Method   Excavating tunnels in gravel layer at great depths under high water pressure using muddy soil pressure
	P&PC Segment Lining Method　(Prestressed & Precast Concrete Segment)   Excellent economy and high quality are realized by introducing prestress
	Wagging Cutter Shield Tunneling Method   Using a compact shield tunneling machine of flexible cross section

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