HZ HZM combined wall systems are combi-wall of king piles and intermediary sheet piling, which are normally used in port construction and deep foundations etc. The HZ HZM king piles are formed its shape in mills in length of over 30 meters. HZ HZM combiwall are connector by different connectors, namely RZD16, RZU16, RH16, RZD18, RZU18, RH20. Hot rolled HZ HZM king piles are big H beams with connecting system at both sides. Cold rolled HZ HZM combined walls are welded H beams together with cold formed sheet piles. HZ HZM combi-wall are normally quay wall tied back by a deadman wall or normal sheet piling wall.We have produced and shipped HZ combined walls to many sheet piling projects all over the world.
Our Advantages
- Custom design available (flange thickness, web thickness, reduced height for limited space)
- Integrated interlocks on H-beams, eliminating the need for additional connectors
- Production capability up to 50m length with steel grades from S235 to S460
- Flexible order quantity (small to large projects supported)
- Multiple production lines ensuring fast delivery
HZ / HZM Combined Wall – Typical Sizes Table
| King Pile Type | Height (mm) | Flange Width (mm) | Web Thickness (mm) | Flange Thickness (mm) | System Width (mm) | Section Modulus (cm³/m) | Moment of Inertia (cm⁴/m) |
|---|
| HZ 680M | 680 | 300 | 10–12 | 16–20 | 1500–1800 | 8000–10000 | 270000–350000 |
| HZ 780M | 780 | 300 | 10–14 | 18–22 | 1600–2000 | 10000–13000 | 350000–480000 |
| HZ 880M | 880 | 320 | 12–16 | 20–25 | 1800–2200 | 13000–16000 | 480000–650000 |
| HZ 980M | 980 | 320 | 12–18 | 22–28 | 2000–2400 | 16000–20000 | 650000–900000 |
| HZ 1080M | 1080 | 340 | 14–20 | 24–30 | 2200–2600 | 20000–26000 | 900000–1200000 |
👉 Note：System width and structural performance depend on the spacing between king piles and the type of intermediate sheet piles (AZ, PU, etc.). All sizes can be customized according to project requirements.
HZ combiwall
A HZ/HZM combined wall system consists of the king pile, connectors, and AZ sheet piling installed between king piles are intermediate infill elements. The HZ/HZM beams can be single H beam or double H beams or even continuous H beams. The HZ/HZM king piles can be retaining wall elements, which resist horizontal loads or bearing piles, which resist vertical loads. While the intermediate sheet piles normally only resist the earth retaining functions or load transfer to the HZ/HZM king piles. The intermediate sheet piles can be shorter than HZ/HZM beams. Depending on the number of interlocks and king piles, HZ combined wall system have 4 different combinations: Combination 12, combination 14, combination 24, combination 26.In theory, the intermediate pile can be any AZ type sheet piles. While in practices, most intermediate sheet pile is AZ18-700 or AZ26-700,others like AZ13, AZ13-10/10, AZ18, AZ18-10/10,AZ26,AZ13-770, AZ14-770-10/10, AZ18-700, A20-700.The connectors are RZD,RZU,RH type depending on connecting elements.
Previously HZ sheet piles was the most popular solutions for permanent ports, quay wall, cofferdam, slope stabilization, wharf contstuctions etc heavy load applications, Nowadays almost all HZ combined walls are HZM sheet pile system.
The combined walls or combiwalls are normally a more economical solutions than sheet pile with tubular pipe combined walls. Various steel grades are available for combi walls and king piles.
