Buoyancy injector

(Wilfried Ellmer) #1

After studying the floating vegetation islands of the Uru tribe , the Bottle Island in Mexico, natural ocurring floating vegetation patches, and the modular island, i would like to postulate the principle of a “buoyancy injector” for floating island building, and suggest the need to investigate a machine that produces bouyancy in large amount in small closed units from glass, plastic, or similar inert materials in form of little spheres that can be injected below a existing island to lift it higher out of the water.

Those of us who has seen the episode of “rescuing a boat by injecting ping-pong balls into it” from mythbusters have more or less the idea how this works.

You would start with a floating geo tissue on the surface – inject balls under it to lift it above the surface – throw steel mats on it – spray some shotcrete over it – now you can step on it – get some vegetation like mangroves – their roots go down to unite the balls and keep them united – when buildings on the island starts to sink down like venice – inject more buoyancy trough a well that you drive trough the ball vegetation matrix.

Anybody who has seen a glass bottle or light bulb factory knows the incredible speed and low cost how such injectable floating units can be produced – from abundant cheap raw materials like sand – waste plastic etc – a production of hundreds of tons of displacement per hour would be a small industrial facility. Keep it working 24 hours a day – a island would grow quite quickly and constantly.


old thread:

capacity to grow does not necessaryly mean modular building

Used car tires and some pioneer spirit
Used car tires and some pioneer spirit
(Larry G) #2

Interesting. I’ve been doing some research on boathouse maintenance in the Columbia River. They’re mostly built on logs and sealed blocks of styrofoam. The procedure for repairing flotation for structures that are listing or lacking buoyancy requires an unmanned submarine operated by a diver on SCUBA or surface supply. The submarine has about 1200 lbs negative buoyancy to sink the styrofoam block and then release it when placed correctly under the structure. Once the block is placed, then the submarine air tanks are refilled to float it again as it is maneuvered out from under the structure.

For very large structures, not subject to quite as much oversight as we get in our clean marinas, your buoyancy injector idea might be quite handy and less trouble.


But it does illustrate that large replaceable floatation is do-able without a marina or floating drydock. Thanks.

(Larry G) #4

There are a number of ways to temporarily do flotation on large structures. Check out how they move bridge pieces with custom-built float bags.

(system) #5

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