The Constructor

Artificial Island Construction Methods, Design and Advantages

Reading time: 1 minute

Artificial Island is an artificially man-made structure that has not formed naturally. This type of islands can be constructed anywhere, any size and shape and can be used for infrastructure, tourism and industry purpose.

History of Artificial Island

Artificial Island may have become popular and seen as a modern technique but its history dates back long time behind. It was even used in Ancient Egyptian Civilization. In 17th century it has been extensively used for Oil exploration and production platforms, coal mine ventilation, coastal defense and extensive of land base. Japan has constructed many artificial Island around it counting to 1000 Nowadays technology so vastly developed that construction of artificial islands in water depth of 75 meter are also possible.

Need for Construction of Artificial Island

The need for construction of artificial island has increased in the recent days as any naturally formed land surface is not available in the desired places for the following requirements:

Factors to be Considered for Design of Artificial Island

Following factors influence the design and construction of artificial islands:

Types of Load Imposed on Artificial Island

Many types of loads are to be considered while designing artificial Island. They are as follows,

1. Permanent or dead load

This type of loads includes the weight of structure and superstructure coming up on it, machineries and equipments that are permanently fixed hydrostatic pressure and buoyance in sea level, ballast water pressure and earth pressure.

2. Variable or live load

Loads such as machineries, materials that are placed on the island at the time of construction. Pressure exerted on the structure internally and externally from water, wind and other factors. The load due to movement of vehicles or machinery on structures like helicopter, vessels, cranes and dredging machines.

3. Environmental Loads

Natural loads like wind pressure, climatic changes, wave and tidal loads, ocean currents and earthquake loads are to be considered while designing of artificial Island.

Process of Artificial Island Construction

The construction process of an artificial Island is as follows,

1) Dredging

Dredging is the process of removal of top lose layer of the water bed to create harbors, channels, docks, de-silting lakes or deepening waterways. It is also termed as Maritime transportation. A special type of machine is used for dredging known as dredger. Different types of methods used for dredging depends upon the following factors:

2) Bed Preparation for Artificial Island

The preparation of a strong and hard bed on the water strata is prominent step in construction of artificial Island. After the dredging of top loose soil is done and hard strata is found, the following process takes place:

3) Concreting

The following steps are involved in concreting processes for construction of artificial island.

Advantage and Disadvantages of Artificial Island

Advantages of Artificial Island

Disadvantages of Artificial Island

Exit mobile version