Dangote Refinery Piling, Tank Farm and Roads

Client: Dangote Oil Refining Company Limited
Role: Pile foundations, civil works, tank pad foundations, dyke wall and road works
Location: Lekki Free Zone, Lagos
Status: Completed
Duration: 17 months
Dates: 2018 to Oct 2021
Services: Deep Foundations and Shoring Civil Works Roads and Bridge Piling

The pile foundations and civil works for the refinery's major and heaviest items, 12 tank pad foundations with a 42 km dyke wall, and the internal roads.

Onsite Piling

In 17 months, RCF installed the pile foundation and performed the civil works for the major and heaviest items in the Dangote refinery, including the Main Reactor and the Unicracking Unit.

The team installed 8,230 driven cast in-situ piles, 500 mm in diameter, at depths of 12, 21, 25 and 28 m.

Tank Pad Foundations and Dyke Wall

Twelve tank pad foundations for tanks 92 m in diameter, which the old site describes as among the biggest crude tanks in the world, with the ring beam, the pavement and the 42 km dyke wall of the refinery tank farm.

Road Works

Strengthening and reinforcement of the refinery's internal roads and approaches, using 405,042 m³ of sand and 73,076 m³ of stone base.

Scope, as Stated

Pile foundation and civil works for the major and heaviest items, including the Main Reactor and Unicracking Unit
8,230 driven cast in-situ piles
12 tank pad foundations for 92 m diameter tanks
Ring beam and pavement for the tank farm
42 km dyke wall for the tank farm
Strengthening and reinforcement of the internal roads and approaches
Secant pile wall with soldier piles, 92 piles, in three months to March 2021

In Numbers

8,230
Driven cast in-situ piles
Diameter
500 mm
Length
12, 21, 25 and 28 m
For
Major and heaviest items (Main Reactor, Unicracking Unit and others)
92
Secant and soldier piles piles
Diameter
800 mm
Length
12.5 and 17.5 m
For
Secant pile wall

Tank pad foundations: 12
Tank diameter: 92m
Dyke wall: 42km
Sand, road works: 405,042m³
Stone base, road works: 73,076m³