Cantilever Sheet Pile Wall Design Example

Cantilever sheet piles cantilever sheet pile walls are usually recommended to use for walls of moderate height 6m measured above the dredge line.

Cantilever sheet pile wall design example.

Sand 30 d 3 1 75t m sat 1 75t m3 3 00 g w t 1 00. Several design examples are provided. Example 1 design the cantilever sheet pile wall that satisfy the requirements for stability of the wall. Sheet pile design by pile buck and the online help for spw 911 explain how that is properly applied.

Pilaster masonry walls 19. Cantilevered tilt up walls 13. Cantilever walls are walls that do not have any supports and thus have a free unsupported excavation. Tables 1 and 2 present the soil properties and the stratigraphy respectively.

Civiltech softwareshoring examples 1. A sheet pile wall is required to support a 12 excavation. Restrained non yielding walls 20. Wood retaining walls 14.

Segmental retaining walls 17. The various forces acting on a cantilever sheet pile wall are the active earth pressure on the back of the wall and the passive earth pressure on the front of the wall. Designing the cantilever wall stem 9. In this example we will design a cantilever sheet pile wall supporting a 10 ft excavation.

For this height of sand determine the maximum bending moment in the sheet pile wall. The total length of the sheet pile wall is h d 10 14 6 24 6. For our purposes we will further simplify the process by increasing the entire penetration below the dredge line by 20 thus d 12 2 0 2 12 2 14 6. Counterfort retaining walls 12.

Design of cantilevered wall granular soil. Table 3 presents the external loads. Design of sheet pile walls using truline composite wall sections design methods and examples introduction this report presents the recommended structural capacities for truline composite wall sections and a summary of design methods commonly used to design cantilevered and anchored sheet pile structures. The design of sheet pile walls is a very complex undertaking.

The theory behind the design including soil structure interaction and three dimensional considerations is so complex that an exact design is not even attempted when designing sheet pile walls by hand. Cantilever sheet piles are used where the height of the soil or water to be retained is smaller than 4 5 m. To take into account the friction between the wall and the soil we use friction angle δ φ 2. The soil is uniform as shown in the figure.

Many engineers use the cantilever wall term to actually describe gravity walls. Cantilever walls restrain retained earth by the passive resistance provided by the soil below the excavation. In such walls the sheet piles are act as a wide cantilever beam above the dredge line. The figure below presents the project model.

Pier and pile foundations 11. Now we will learn how to analyze and design each type. Cantilever walls cantilever wall design. Sheet pile walls.