Steel Sheet Piles in Latin American Port Expansion: From Quay Walls to Temporary Cofferdams

With the expansion of offshore oil and gas extraction (such as the development project of Suriname Block 58), the establishment of cross-border trade corridors (such as the supporting docks of the Bio-Marine Highway in Paraguay), and the significant increase in the throughput of ports in Peru (Chinchay Port) and the Gulf of Mexico coast of Mexico, Central and South America is experiencing the largest wave of port and water infrastructure construction in decades.

In the expansion of deep-water docks, reinforcement of breakwaters, dredging of waterways, and construction of coastal and inland oil logistics bases, steel sheet piles have emerged as indispensable core retaining and waterproofing materials from permanent heavy-duty docks to temporary construction cofferdams, thanks to their high structural modulus, excellent water-blocking joint performance, and extremely high construction efficiency.

I.Selection and Technical Analysis of Steel Piles for Pier Walls and Temporary Dams

In the complex coastal geological environment of Central and South America (such as high salt fog corrosion, muddy soft soil layers, and high-intensity seismic zones), the selection of hydraulic structures must closely match the functional requirements and bearing capacity design of the project:

1. Permanent wharf cofferdam and combined wall system

For deep-water docks, they need to withstand the impact of large-tonnage container ships during berthing, huge lateral soil pressures, and dynamic loads from heavy gate cranes on the shore. In such projects, the engineering design usually opts for hot-rolled Z-shaped steel sheet piles. Compared with traditional U-shaped piles, Z-shaped piles have symmetrical locking mouths distributed on both ends of the neutral axis on the cross-section, with a larger cross-sectional modulus, which can maximize the bending resistance of the steel. In ultra-deep-water docks or projects with extremely high loads, a "combined wall" system of steel sheet piles and large-diameter steel pipe piles is usually adopted, significantly enhancing the overall stiffness of the structure.

hot rolled Z steel sheet piles

2. Temporary construction cofferdam and underwater foundation support

In the construction of bridge piers' foundations, the construction of sluices, and the excavation of the foundation pits for onshore logistics bases, the focus of the project is on rapid construction, efficient water sealing, and the non-destructive removal and recycling after completion. The Larson U-shaped steel sheet piles, with their standardized locking mouths, excellent water-blocking and water-retaining effect, and extremely strong resistance to deformation, have become the preferred solution for cofferdam projects and dry dock construction for water-blocking support.

Larson U steel sheet piles

II. Comparison of Comprehensive Steel and Profile Requirements for Port Hydraulic Engineering

Deep-water docks and marine infrastructure constitute a complex system project. In addition to the steel sheet piles serving as the main retaining and water-blocking structure, various high-strength profiles, pipes, and prefabricated heavy steel structural components are also required to work together:

Application Scenario Core Steel Products Common Material Grade / Standard Key Performance & Engineering Function
Quay wall and cofferdam support U type and Z type hot rolled steel sheet piles EN 10248 (S355GP, S390GP) / ASTM A690 Earth retaining and water sealing; resists lateral earth pressure and wave impact loads
Combi wall and support truss Wide flange H beam / I beam ASTM A572 Grade 50 / EN 10025 S355JR Used as king piles in combi wall, or waling and strut inside excavation
Marine pile foundation and combi wall Large diameter LSAW and SSAW steel pipes API 5L PSL2 / ASTM A500 / EN 10219 Wharf high pile wings, jacket legs, and main piles of pipe and sheet pile combi wall
Logistics warehouse and superstructure Prefabricated steel building components and C/Z purlins Q355B / ASTM A36 / galvanized steel sections Main frames for port warehouses, yard canopies and transfer hubs
Deck loading and safety access Industrial steel grating and non slip treads ASTM A36 hot dip galvanized steel grating Wharf approach platforms, maintenance walkways, trench covers and safety stair treads
Anchorage system and mooring facilities Steel plates and high strength tie rods ASTM A516 Gr 70 / Q355D steel plate Quay anchor walls, bollard foundations and bulkhead tie rod connectors

III. Addressing Corrosion and Geologic Challenges: Corrosion Prevention Treatments and Customized Processing

The intense marine salt fog and the alternating dry-wet environment in the Latin American region impose extremely high requirements on the corrosion resistance of steel materials. A port’s intended service life generally spans 50–100 years. If the design is solely based on the reserved corrosion allowance,it will not be able to completely resist the corrosion caused by chloride ions in seawater.

Therefore, for some high-standard port designs, special seawater-resistant steel materials such as ASTM A690 and SYW390 are usually used, along with anti-corrosion methods like epoxy coal tar pitch, high-solid-content epoxy paint, and sacrificial anode cathodic protection. When dealing with tough soil formations, sheet piles are prefabricated with welded tip reinforcement and interlock sealant to retain structural integrity and dependable water stop performance during installation.

IV. Supply Chain Fulfillment: Royal Group Fully Empowers Port Construction in Latin America

In the face of challenges such as the long transportation cycle across the Atlantic Ocean, limited on-site processing conditions, and strict project acceptance standards in Central and South America, the world's leading comprehensive steel supplier, Royal Group, has provided the entire chain of support for the Central and South American market, ranging from scheme design consultation, customized production to maritime delivery fulfillment.

As a professional enterprise deeply engaged in international engineering materials, Royal Group not only can stably supply a full range of hot-rolled and cold-formed steel sheet piles that comply with EN 10248 and ASTM A328/A690/A572 standards, but also possesses extremely complete extrusion and steel structure extension processing capabilities.

The company can provide bundled and packaged supplies as follows:

• ASTM A572 Gr.50 / S355JR wide-flange H-beams;

• Large-diameter API 5L / ASTM A500 / ASTM A252 structural steel pipes;

• Industrial-grade hot-dip galvanized steel grating plates;

• High-strength carbon steel containers and structural steel plates;

• As well as finely prefabricated steel structure components and assemblies

In response to the complex maritime logistics problems in Central and South America, Royal Group has formulated standard anti-corrosion packaging for ultra-long steel sheet piles and profiles, as well as customized length cutting services. This effectively prevents the goods from being damaged or rusted during the long ocean transportation of tens of thousands of miles, ensuring that the bulk cargo ships or container frame cabinets arrive safely at the port. Significantly, it helps the Latin American owners and contractors shorten the secondary processing time on-site and achieve dual optimization of overall infrastructure costs and construction period.

Royal Group

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Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China

E-mail

[email protected]

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+86 13652091506

Post time: Oct-26-2026