An interesting development... I wonder if these vessels can be used later to serve as afloat staging areas for amphibious, mine sweeping, and humanitarian missions in future similar to USN's Mobile Landing Platforms.
There are some good photos of artist depictions through the link
Shiptec China 2014: CSSRC showcases plans to build floating docks for Spratly Islands
Cornelius Weening, Dalian - IHS Jane's Defence Weekly
27 October 2014
China is developing floating docks to support its land reclamation projects in the Spratly Islands in the South China Sea, according to shipbuilding industry officials and information provided at the Shiptec China 2014 exhibition in Dalian.
Officials from the China Ship Scientific Research Center (CSSRC), a subsidiary of China Shipbuilding Industry Corporation (CSIC), told IHS Jane's that it is developing multifunctional floating docks for deployment on the Paracel and Spratly Islands.
Renderings of the docks were displayed at Shiptec China 2014.
The docks, which will be manufactured on the Chinese mainland and transported to the islands for final assembly, consist of a large rectangular platform and a bridge connecting the platform with an island.
China will first deploy the docks to the Paracel Islands for trials and testing. After this phase is complete, the docks will be deployed to the Spratly Islands, CSSRC officials said.
Two variants are under development. A base unit consists of a towed multifunctional platform and a bridge. CSSRC said the platform can support the following capabilities: docking for 1,000-tonne ships, maintenance and repair stations for fishing vessels, an electric-power plant, fresh-water storage and supply, desalination of seawater, rainwater collection, and general storage of equipment and supplies.
A second platform variant is based on a semisubmersible vessel that can move under its own power, but not over long distances. The platform can be used for light construction and maintenance of an island, such as heightening sandbanks or removing reefs. CSSRC lists its additional capabilities as temporary living quarters for construction crews, and waste water treatment. The bridge is strong enough to carry a 10-tonne truck.
COMMENT
The floating docks will provide China with the ability to build small settlements on remote islands relatively quickly. The docks carry the basics a settlement needs, and the second variant can expand and improve the reclaimed island. If the docks are deployed in large numbers China could populate large areas of the Paracel and Spratly Islands under its control, thereby strengthening its claims.
However, the docks depend completely on external fuel-supply, which limits their utility. To counter this CSSRC is developing new variants powered by wind energy, either by relatively small wind turbines placed on the platform itself or by larger semi-mobile turbines constructed in waters nearby.