Land Reclamation Services Australia
What Is Land Reclamation?
The process of land reclamation is used around the world to create new land from the sea, rivers, and lakes. Firstly, an investigation to determine the condition of the seabed is undertaken, followed by environmental studies to assess and ensure minimal impact is made on the water quality, sedimentation and marine life.
Experts then assess the type of material to be used in the project including hill cuts, soil and clay. The area is then filled with required amounts of large rocks and cement, then layering with clay and soil to imitate the structure of existing land formations.
Depending on the purpose of reclamation, the times are set for each process of the layering and constructing on the land mass.
Importance of Land Reclamation
Exponential population growth has brought upon negative environmental effects calling for new construction and land restoration strategies. Land reclamation poses as a sustainable process used for centuries to protect agriculture, build infrastructure and growing industries, all while aiding the prevention of mass land erosions caused by flooding and other disasters.
The Netherlands have reclaimed lands that surround agriculture areas to protect from flooding, while Singapore has multiple reclaimed islands used for iconic housing infrastructures, resorts and workspaces.
Moreover, reclaimed land can also sustain erosion-prone areas with stronger structures to slow the process, protecting the coast and crops.
Advantages of Land Reclamation
Land reclamation has many advantages; restoring existing land and building new usable environment development are two uses of the process. Population growth, rising seas levels and expansions of ports have seen a comparable rise in the increase of land reclamation projects in Australia and overseas.
Land Restoration: Our planet comes with its own processes to sustain itself which can often clash with the human processes. This is evident in the form of flooding and coastal erosion caused by rising sea levels, resulting in the loss of agriculture industries and coastal management.
Having land reclamation as part of the solutions for these issues can slow the erosion process and strengthen the areas prone to these risks.
Construction Developments: Some countries with smaller land mass have embraced the creation of usable areas through the land reclamation process. This includes Singapore, which began its expansion in 1822 with a total of 20 percent of reclaimed land supporting its growing economy and industries.
Types of Land Reclamation Methods
There are numerous methods used in the land reclamation process including
The dry method
Generally used for extending foreshores, this method uses rock; hill cut and clay fills to extend existing usable land.
Hydraulic Reclamation Method
A wet method is requiring offshore sourced fillers, suitable for granular fill required areas providing proper drainage for the area. Feasibility of the technique is dependent on the nature of the seabed that needs filling.
Rehandling from a Rehandling Pit
Rehandling pits are created for temporary storage of offshore fillers. The storage capacity of the pits is expected to be a few million cubic meters, built so the Hydraulic filling can be made more accessible.
Mostly used for granular material. Blends dry with wet according to the grain size before filling an area, a form of layering to strengthen the area.
This method allows strengthening of the shallow seabed with really soft soil. The rehandling pit is used to help achieve the process.
Pumping inside the bunds
Coastal bunds are a coastal management tool used to protect the beach from being washed away by powerful waves. After the time is given for the bund to establish itself, the reclamation process begins to minimise the loss of material from the natural action of the space.
Land Reclamation Policies in Australia
Contact Keneric Group
Want to get started on a land reclamation project? Get in touch with the experienced team at Keneric Group, Australia’s only CAS distributor for all your land reclamation machinery needs.