Z-shaped steel sheet piles are a type of steel piling material that are used in construction, similar to U-shaped piles. The primary difference is their shape – Z-shaped piles have a Z-shaped cross section, which allows for greater swing or rotation during installation, resulting in a tighter interlock. This makes Z-shaped piles particularly useful for retaining walls and other structures that require significant lateral load resistance.
Here’s a more detailed overview:
Z-Shaped Steel Sheet Piles
Z-shaped steel sheet piles have a Z-shaped cross section, which gives them a unique set of benefits:
- Greater Load Resistance: The shape allows for greater resistance to bending. This makes Z-shaped steel sheet piles ideal for projects that require strong lateral load resistance.
- Tighter Interlock: The Z-shape allows for a tighter interlock between the piles, creating a more secure and sturdy wall after installation.
- Versatility: Z-shaped piles can be used in a variety of projects, such as retaining walls, cofferdams, and sea walls.
- Durability: Like U-shaped piles, Z-shaped steel sheet piles are made from high-quality steel, making them durable and resistant to corrosion.
Advantages of Z-Shaped Steel Sheet Piles
- Strength and Rigidity: The Z-shaped cross section provides a high moment of inertia, resulting in a sheet pile with great strength and rigidity.
- Effective Interlock: The interlock on Z-shaped sheet piles is located at the extreme ends of the wall, away from the neutral axis. This means that up to 50% higher load can be transferred to the surrounding soil, providing a more efficient use of steel.
- Versatility: They can be used in nearly any type of soil and are suited for both temporary and permanent applications.
Z-shaped pile
Limitations and Considerations
Like all construction materials, Z-shaped steel sheet piles also have their limitations:
- Installation Complexity: The installation of Z-shaped piles can be more complex due to their shape. This can increase the time and cost of installation.
- Design Complexity: Designing a structure with these piles requires careful planning and expert engineering.
- Potential for Higher Costs: While Z-shaped piles offer greater load resistance and a tighter interlock, these benefits may come at a higher cost compared to other types of piles.
Overall, Z-shaped steel sheet piles are a robust and versatile solution for a variety of construction needs, particularly in situations that require significant lateral load resistance. However, their use should be carefully planned and executed, taking into account the complexity of installation and potential cost implications.
Hot Rolled steel sheet pile
| Section | width (mm) |
height (mm) |
Web (mm) |
Cross-Sectional Area | Weight | Section Modulus | Moment of Inertia (cm4/m) |
Coating Area | ||||
| (cm2/m) | (cm2/m) | Pile (kg/m) |
Wall (kg/m2) |
Elastic (cm3/m) |
Plastic (cm3/m) |
Both Sides of Single
(m2/m) |
Wall Surface (m2/m2) |
|||||
| JZ17-700 | 700 | 419.5 | 8.5 | 93.3 | 133.2 | 73.2 | 104.6 | 1731 | 2031 | 36304 | 1.86 | 1.33 |
| JZ18-700 | 700 | 420 | 9 | 97.7 | 139.5 | 76.7 | 109.5 | 1804 | 2120 | 37894 | 1.86 | 1.33 |
| JZ19-700 | 700 | 420.5 | 9.5 | 102.1 | 145.9 | 80.1 | 114.5 | 1878 | 2213 | 39485 | 1.86 | 1.33 |
| JZ20-700 | 700 | 421 | 10 | 106.5 | 152.2 | 83.6 | 119.4 | 1951 | 2302 | 41076 | 1.86 | 1.33 |
| JZ24-700 | 700 | 439 | 11 | 121.2 | 173.1 | 95.1 | 135.9 | 2432 | 2818 | 53379 | 1.93 | 1.38 |
| JZ26-700 | 700 | 440 | 12 | 130.6 | 186.6 | 102.5 | 146.5 | 2606 | 3030 | 57329 | 1.93 | 1.38 |
| JZ28-700 | 700 | 441 | 13 | 140 | 200 | 109.9 | 157 | 2779 | 3240 | 61279 | 1.93 | 1.38 |
| JZ36-700 | 700 | 499 | 11 | 150.5 | 215 | 118.1 | 168.8 | 3600 | 4111 | 89826 | 2.05 | 1.47 |
| JZ38-700 | 700 | 500 | 12 | 160.4 | 229.2 | 125.9 | 179.9 | 3800 | 4357 | 95004 | 2.05 | 1.47 |
| JZ40-700 | 700 | 501 | 13 | 170.3 | 243.3 | 133.7 | 191 | 3999 | 4604 | 100184 | 2.05 | 1.47 |
Contrast material
| Standard | Grade | Chemical composition | ||||||||||
| C | Si | Mn | P | S | Nb | V | Ti | Cu | N | free nitrogen | ||
| ≤ | ||||||||||||
| JIS A 5528 | SY295 | 0.04 | 0.04 | |||||||||
| SY390 | 0.04 | 0.04 | ||||||||||
| JIS A 5523 | SYW295 | 0.18 | 0.55 | 0.15 | 0.04 | 0.04 | 0.006 | |||||
| SYW390 | 0.18 | 0.55 | 0.15 | 0.04 | 0.04 | 0.006 | ||||||
| GB1591 | Q345B | 0.2 | 0.5 | 1.7 | 0.035 | 0.035 | 0.07 | 0.15 | 0.2 | 0.3 | 0.12 | |
| GB/T20933-2014 | Q295P | 0.16 | 0.5 | 1.5 | 0.035 | 0.035 | 0.06 | 0.15 | 0.2 | |||
| Q345P | 0.2 | 0.5 | 1.7 | 0.035 | 0.035 | 0.06 | 0.15 | 0.2 | ||||
| Q390P | 0.2 | 0.5 | 1.7 | 0.035 | 0.035 | 0.06 | 0.2 | 0.2 | ||||
| Q420P | 0.2 | 0.5 | 1.7 | 0.035 | 0.035 | 0.06 | 0.2 | 0.2 | ||||
| Q460P | 0.2 | 0.6 | 1.8 | 0.03 | 0.03 | 0.11 | 0.2 | 0.2 | ||||
There are three forms or shapes of steel sheet piles: Z-shaped, U-shaped and Straight Web Sections.Z-shaped sheet piles are considered to be the most efficient of the shapes. They are used for intermediate and deep wall construction and commonly for tied back and cantilever retaining walls. U-shaped profiles are used for similar applications, but their resistance to bending is lower than Z-shaped piles.
We sell and rent three different hot-rolled, "Z" type sheet piling products, flat piling and combination systems to ensure that we can match the needs of your application.The Z shape of each section lends to its structural strength which is determined not only by the size, but also by the thickness of the steel. Of course, the soil conditions in which the section is driven will also affect the performance of the foundation or wall.
Hot Rolled Sheet Piles are formed by profiling the steel with high temperatures as the rolling process occurs. Typically, hot rolled sheet piles are produced to BS EN 10248 Part 1 & 2. Greater thicknesses are achievable than cold rolled sheet piles. The interlocking clutch tends to be tighter as well.
Like other steel piling shapes, sheet piling is driven into the ground to provide stability and support for a range of construction applications. As its name suggests, these are steel sheets that form a support wall, rather than the round or H-shaped cross sections of other piling shapes. Sheet piling has both temporary and permanent uses, usually as retaining walls for excavation, underground structures, or seawalls.
U-type Steel Sheet Pile U-type profile interlocked on both sides to form a continuous wall with centerline in the middle of a double U section wall.
The steel sheet pile is very wide, in the permanent structure of the building, can be used for wharf, unloading yard, embankment revetment, wall, retaining wall, breakwater, diversion embankment, dock, gate, etc.; In temporary structures, can be used to seal the mountain, temporary shore expansion, cut-off, bridge cofferdam, large pipeline laying temporary ditch excavation retaining, water, sand, and so on; In flood fighting, it can be used for flood control, collapse prevention, sand and so on.
