Combined Sheet Pile Walls - King Piles: Use - Advantages - Disadvantages
Combined sheet pile walls (king piles) can be designed easily with DeepEX shoring design software. This section examines the use of combined sheet pile walls in deep excavation design, as well as, the king pile wall advantages and disadvantages.
Figure: Braced Excavation with Combined Sheet Pile Walls in DeepEX software.
Combined sheet pile walls are typically formed by joining a pair of sheet pile sections with regularly spaced king pile patterns. sheet Combined sheet pile walls are mostly used in marine applications where they provide increased stiffness combined to regular sheet pile walls. In marine applications, it is common for the king piles to be driven to a greater depth so that greater axial capacity is obtained.
Combined steel sheet piling is used in many types of temporary works and permanent structures. The sections are designed to provide the maximum strength and durability. The design of the section interlocks facilitates pitching and driving and results in a continuous wall with a series of closely fitting joints. Care should be taken since special interlocks are required between the king piles and the sheet pile walls. Corrosion protection is required for permanent combined sheet pile walls.
Figure: King Pile Wall
For earth retaining systems, the most typical configurations include:
Single H-king pile
sheet pile wall combination
Double H-king pile
sheet pile wall combination
Pipe pile
sheet pile wall combination
King pile wall advantages:
Increased wall stiffness
Increased wall moment resistance
Sheet piles can be terminated at higher elevations
King piles can extend deeper to better bearing strata
Might offer a better alternative to other systems
Ideal for heavy marine applications
King pile wall disadvantages:
Increased cost when compared to standard sheet piles
Installation more complex compared to sheet piles
Greater coating surface when compared to sheet piles
Cofferdam Design - 2D Section and 3D Model LEM, NL, FEM Analysis
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Structural and Geotechnical Design
Modern Interactive Interface
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Limit Equilibrium - Non-Linear -
Finite Element Analysis
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DeepEX does both structural and geotechnical analysis of any deep excavation wall and support system.
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Figure: King Pile Wall
