Sheet pile walls generally used for retaining shallow heights of soil wharfs key walls temporary structures for excavation eg.
Cantilever sheet pile wall ppt.
The concept is very simple.
To take into account the friction between the wall and the soil we use friction angle δ φ 2.
Cantilevered tilt up walls 13.
Cantilever sheet piles cantilever sheet pile walls are usually recommended to use for walls of moderate height 6m measured above the dredge line.
Pilaster masonry walls 19.
They make plates of concrete timber and.
Please note this value is applied only for passive pressure.
Restrained non yielding walls 20.
Sheet pile walls.
A sheet pile wall is required to support a 12 excavation.
Use factor of safety 1.
Wood retaining walls 14.
Construction method sheet pile may be divided into two basic categories.
Hence it is quite fast and cheap.
Swimming pool walls 18.
The soil is uniform as shown in the figure.
Counterfort retaining walls are same as cantilever walls except they have thin vertical concrete webs at regular intervals along the backside of the wall and these webs are known as counterforts.
They are coming to some forces acting on sheet pile walls.
What is sheet piles.
Sheet piles are generally thin piles.
Types of sheet pile several types of sheet piles are commonly used in construction a wooden sheet piles b precast concrete sheet piles c steel sheet piles d aluminum sheet piles 11 12.
12 various types of wooden and concrete sheet piles 13.
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.
Cantilever sheet piles are used where the height of the soil or water to be retained is smaller than 4 5 m.
In such walls the sheet piles are act as a wide cantilever beam above the dredge line.
The counterforts tie the slab and base together and the purpose of them is to reduce the bending moments and shear forces imposed on the wall by the.
Tight installation tolerances are not a major concern mainly for temporary walls sheet pile are quite short leaning is not a predictable issue soil layers are not too compact.
Sheet piles walls are also called bank heads.
Dredging from mccarthy 6th edition.
Designing the cantilever wall stem 9.
Design of cantilevered wall granular soil introduction.
It can be suitable when.
There are two types of cantilever sheet pile and anchored sheet pile.
Each sheet pile is threaded and driven directly to its final depth.
Sheet pile walls and braced cuts p a 885 axv a o pp pa d a b figure 20 5 example illustrating earth pressure on cantilever sheet piling general principle of design of free cantilever sheet piling the action of the earth pressure against cantilever sheet piling can be best illustrated by a simple case shown in fig.
Segmental retaining walls 17.
Now we will learn how to analyze and design each type.
