MARINE CONSTRUCTIONS
Areas of Expertise
Marine construction projects can involve unique challenges and complexities that require specialized engineering solutions. One of the most critical aspects of marine construction is the preparation of the seabed and the foundation upon which structures will be built. In this context, soil and drilling technologies play a key role in ensuring the success and longevity of marine infrastructure.
In marine construction projects, the stability of foundations is crucial for the structural integrity and longevity of offshore structures such as oil platforms, wind turbines, and marine terminals. Soil and drilling technologies are essential for assessing all seabed conditions, including the soil composition, geology, and water depth, in order to determine the most appropriate foundation design and construction methods.
Combined Wall (Sheet Pile and Pipe Pile)
Combined walls made of sheet piles and steel pipe piles are used to resist lateral loads such as wave forces/water loads and create an impermeable environment.
Steel Pipe Piles
Steel pipe piles are one of the most commonly used deep foundation elements to support structures in challenging soil conditions or under heavy loads. The process starts with driving steel pipes into the ground using hydraulic hammers, vibratory pile drivers, or impact pile drivers.
Vibro Concrete Piles
Within the scope of ground improvement works, a specially designed 40 cm diameter mandrel and impacting head are driven into the ground in accordance with the project lengths with a static force together with dynamic vertical impacting energy. A temporary cover attached to the end of the impacting head prevents the ground from entering the mandrel during driving.
After the mandrel is driven to the design depth, the concrete is filled into the mandrel pipe. The hollow mandrel pipe allows the concrete to flow into it. A 33 cm thick layer of compacted concrete is obtained by lifting the mandrel 1 m at the bottom of the girder and lowering it again by 67 cm. In the following parts, the mandrel is pulled in accordance with the pulling speed determined as a result of field tests with the effect of vibration and a 40cm diameter concrete pile is obtained.
Artificial Islands
Artificial islands, designed for various uses, consist of sheet pile walls in different sizes and shapes. Sheet piles are also used to form the different-sized caissons required for these islands.
These caissons are distributed around the artificial islands to protect them from water impacts. The filling material used for constructing artificial islands is protected by the driven sheet piles.
