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About the permanent ocean settlement:

Home Forums Community General Chat About the permanent ocean settlement:

This topic contains 4 replies, has 1 voice, and was last updated by Profile photo of spark spark 2 years, 6 months ago.

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  • #21953
    Profile photo of spark



    There are many nice pictures and youtube videos about planned permanent ocean settlements.

    Somehow each plan is focusing on one possible application.  I think, multiple, different type of

    ocean settlement structures would be necessary to make permanent ocean living possible.


    Different type of ocean settlement structures;  such as floating island, anchored island, structure built on

    seabed and reaching above the water, and underwater structures.  In my opinion all of the possible ways

    together might make a permanent ocean settlement possible.


    For those who do not get seasick a floating island and an anchored island might be suitable.  However during

    severe weather conditions these might become impossible places for humans for a period of time.  In a time period of 10-20 years,

    a severe weather condition is possible, and that would endanger human lives.  Getting to dry land is not so desirable

    when there are many seasteadres live on the sea.  Not many countries desire to adopt or deal with large amount of refugees.


    One of the way to escape severe weather conditions of the surface waters  is, a way to stay under the the surface

    for a while.  Underwater structures might be suitable for that.  Such  underwater structures could be built and anchored

    to the seabed away from the affected surface.  Structures like that would need to be somehow comfortable.

    If such a structure is a part of the everyday life of the seasteaders the use of it in an emergency situation would not

    be as traumatic as otherwise.


    Structures of a seastead could be built, anchored, floated … etc  at a sea-mount out of EEZs, and this way it might become

    a permanent ocean settlement that might not depend on anything from dry land.  Else, it is just waiting for a disaster.


    This is my opinion at this this time.



    Profile photo of spark


    I was reading about weather on the Pacific Ocean. How bad can it get?

    I found: http://en.wikipedia.org/wiki/Hurricane_Ioke

    “A crew of 12 people rode out the hurricane in a hurricane-proof bunker on Johnston Atoll;
    the crew estimated winds reached over 100 mph (160 km/h), which damaged trees on the island
    but did not impact the island’s bird population.”

    I wonder how the birds survived 100 mph winds.

    Hurrican-proof bunker cannot be that deep because the highest elevation of Johnston Atoll is
    5 meters = about = 15 feet. None the less people figured out a way to survive too.

    “…Ioke produced a storm surge and high surf in excess of 30 ft (9.1 m) along the southwestern
    coastline of Alaska …”

    Big waves.

    “Ioke maintained at least Category 4 status, or wind speeds greater than 131 mph (211 km/h),
    for 198 consecutive hours, which was the longest continuous time period at that intensity ever
    observed for any tropical cyclone anywhere on Earth.”

    Less wind speed storms last longer?

    “…traversed the Pacific for 17 days…”

    Difficult to imagine the distance it traveled. I guess it did not stay in one place for 17 days.

    Another reference: http://en.wikipedia.org/wiki/Johnston_Atoll

    “On August 22, 2006, Johnston Island was struck by Hurricane Ioke.”

    “There were no meteorological observations on the island, but the crew estimated tropical storm force
    winds lasted for about 27 hours with hurricane force winds lasting six to eight hours; peak wind gusts
    were estimated at 110 to 130 mph (180 to 210 km/h). The crew sustained no injuries, and their ship
    received only minor damage. Hurricane Ioke, with a portion of its eye crossing the atoll, left an
    estimated 15% of the palm trees on the island with their tops blown off, with some ironwood trees
    blown over; the island bird population was unaffected.”

    no injuries, minor damage to ship, bird population was unaffected

    Profile photo of spark

    I have been watching some youtube videos about tsunamis.

    They talk about longitudinal sound like underwater waves.


    I wonder how much damage a tsunami does to the seabed.

    How much damage could be done to an underwater structure.

    Profile photo of spark


    Some of my ideas about seasteading:

    Floating platform:

    May be a bit of planning is necessary for the success.

    There are probably large amount of experimental data about the shape of a boat and
    the action of waves on the hull of the boat. Some of that data might even be available.

    I saw youtube videos about oil-tanker boats.
    Some of those boats are big. Most of the oil tanker boats body is in the water when the
    boat is loaded. In the video it was stated that the tanker needs a small engines. And
    the tanker operation cost is so low that it adds only 2 cents per gallon to the gasoline price.
    (That is when the taxpayers clean up Exon-Valdez in Alaska, but let’s not piss them off.)

    So some people figured out a way to move large boats with high efficiency.

    The effect of waves on a seasteading platform may be scary in a big storm. Different shape
    platforms might respond differently to a storm and to big waves.

    What would be the guide lines?

    I would think: it should float, It should float even when it is full of water,
    it should be self righting, cheap to build, easy to maintain, and should have a multi purpose,
    … etc…

    I would think: Ferro-cement would be the cheapest. To make it float it would be nice to
    incorporate some kind of synthetic foam. A V-shape hull may be the best.

    Components of ferro-cement are probably the cheapest and most available on land.
    Synthetic foam could be polyurethane. Polyurethane foam is widely used for heat insulation,
    and for retrofit heat insulation. The price might be high, but it is available.

    The price of the final product depends on labor cost too. When DIY or unskilled labor can
    be utilized, the final price can be lower. Most ferro-cement boat construction documents
    state that the construction can be done with relatively low skills.

    The shape of the platform:
    I consider the rolling effect of waves on a boat. A boat can be positioned with bow against
    the waves, and with side against the waves. The less surface a wave gets, the less effect it
    makes and the safer it is. I saw some square shape platform designs. A square shape platform
    cannot minimize wave effect by turning with bow against the waves.

    There might be lots of data to support the rectangular designs, I just do not know how to
    get access to that data. None the less, the data must exist because of the large boats and
    boat building engineers, and businesses. An engineering firm would probably have to show
    experimental data to the customer about the specifications of a boat to be biult.
    That data is not available, but the final shape of the product (boat) is available.

    So the final shape is mostly rectangular and V-shaped. The bow again <-shaped, and the
    aft is ]-shaped. Kind of like <===] and V. (I am not trying to be obscene.)

    In my opinion, simplicity is a big factor of the success to build a platform.

    Building a platform is not enough. It has to be launched. It has to be transported (towed or
    powered) to anchoring location. And it has to be anchored.
    To build one, there necessary to find an available space where it could be launched to water.
    There is no point to build one in the middle of the desert, and to leave it there.

    Some calculation would be necessary to estimate the cost of construction to ensure success.
    Success is a floating platform anchored outside EEZ, and no one would sink it, and some people
    would utilize it at least for some time.

    OK. Well. May be that is enough from me for now.

    Profile photo of spark

    Some of engineering effort of a large floating structure is shown on this video:


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