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  • #15224
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    shredder7753 wrote:

    snip

    you said to add diagonal reinforcing. did you mean to build that into the steel that’s set into the concrete? might be a good idea. instead of a normal rebar layout, use a cross-hatch design that would resist lateral torsion.

    snip

    Yes and no. I mean a little diagonal cage reinfircing in each concrete deck and added anchering into the walls at the corners other wise you may see two diagonally oposite corners pulled out of the wall and two buckled. It should not add much, a hundred dollars or so , to cost. The model looks good and should help in testing and education.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #15178
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    Add some diagonal reinforcing. Any wave action could bend it into a romboid and pop off the bottom. Otherwise it looks good. May I suggest

    extending the walls down below the bottom deck/hull floor. This would couple a large mass on water trapped under the deck to the deck leading to more inertial mass without much more boayany mass in the vessel. All burg ship designs should have two or more airlock exits to the deck but most can be just hatches.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #14861
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    I have a new space station design and a Mars base design.

    bit.ly/BankedTrackGravity

    Part of Gale crater roofed. Where the next rover is going.

    A varient.

    Gale crator roofed and farmed.


    For everyone's information I was involved with the original Oceania Project in a small way. I'm also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #14167
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    Gizmag has a report on wave harvesting boats that charge on board energy systems. This idea is not new but it often gets forgotten.
    http://www.gizmag.com/wave-power-system-on-ships/19251/
    Also should work for some energy consuming processes like fresh water production and electrolytic metal refining, aluminium etc. Since its likely to be crewed it counts as a boat stead but its most likely to be found in higher latitudes 30 to 60 where waves are strongest but not catastrophic.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #14166
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    Another technology that could be useful particularly for producing corrosion resistant impermeable surfaces is Solar Sinter. http://www.gizmag.com/solar-sinter-3d-printer/19046/
    Its slow but its speed depends on the size of the Fresnel lens. At the equator there is ample sun. Materials that can be worked with include sand, seabed basalts and silica mud’s, possibly coral sands [calcium carbonates]. If the lens it self can traverse the surface of whole structures could be slowly sintered to seal it. Its early days for the technology and the work in gizmag is intentionally course for artistic reasons but it is a new resource that we could use.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #14114
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    I’ve been playing with something like this since before the institute was formed. See appliedimpossibilies.blogspot.com/2010/03/green-dragon-boats.html

    Put the farms on lits of little boats so you can have a smaller sea stead for people to live on. These boat are wave powered and robotic. In the face of a storm they scater. When the storms over they wander home under GPS guidence. Moor two or three together to form a stable platform when its time to sow ans harvest. Some could be used to store stuff: food, fuel, the spare furnature, as well.

    They can also be used as tugs to pull buoys and flouting stuff around. Such as all of these floating ponds, leisure wharves, algae bladders, and in the distance, spherical fish farms and an up-welling pump. They all could be robotic in various ways. Note the dragon boat on the right. Everything’s at Second Life look up Wesley Farspire. That’s my avatar there.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #14113
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    Here are some of my pictures.

    Floating farms in Second Life.

    Dragon boat floating farms. Wave powered boats with crops in them. Plants don’t get seasick.

    Another varient at SL.

    Bringing them togeather.

    And

    I also have another design. the Duck and deck system that someone needs to test out for me.

    A ship stead.

    and a tilt ship design.

    See my pages at appliedimpossibilies.blogspot.com/2010/03/sea-steading-as-fleet-of-vessel-classes.html and appliedimpossibilies.blogspot.com/2010/01/sea-steading-design-based-on-flip-ship.html and my ocean farming work at vacoyecology.com/Bubble_ponds_fluke_boats.html and appliedimpossibilies.blogspot.com/2010/03/float-ponds-in-second-life.html

    I’ve posted these before but this putts them all out together.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #13024
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    Floating seawalls do not need to be contious around a floating marina. An array of staggered wave damping units would work if they are deployed and co-ordinated to damp all the waves. This creates an area in the middle that has quiet seas for a marina and other systems. This design allows vessels to come and go from the sheltered area freely. It also allows the break wall to have mobile backup units and allows big opennings for big vessels to move through as required.

    In this illistration we have gray wave steads and wave power units, There are dark green shipsteads and unmanned floating farm units which double as tuggs to move around the floating sea walls. In the center area we have

    Light Green is a large floating mat based sea stead/ farm system. A Continuous mat of float ponds and inflatable decks with switchable rigidity. (Floating digital matter.)

    Orange are large clusters of interlocked sea steads forming the business center. Note one is also a ship bases sea stead for trade further afield.

    Yellow is algae oil farms: very big but modular arrays of floating bladders of fuel producing organisms.

    Blue are small spars, flip ship like spars and other smaller units.

    The waves passing under the wave barriors encounter a second one just in case. Any passing the ends of the units encounter another or cancel out with other waves. A deeper description is on my blog.

    http://appliedimpossibilies.blogspot.com/2010/03/sea-steading-as-fleet-of-vessel-classes.html

    This is a wavestead. The cylinders are egg shaped in cross section and turn the wave action into a damped rotation.

    ====================================================================================================

    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #12962
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    I like plate stead.

    The design could allow you to have a lot of stable deck space cheaply. It could be made safe and amenable if you do several things.

    1. Add very light entertainment decks to your rim for views and make these light enough to be funtional life rafts. Put only the heavy stuff on the wide open sub sea deck.
    2. Add large bay window sized parascopes to create the illusion that structures below the sea level are above sea level. These may be mirror based parascopes or big flat screen TV’s with a fixed link to a camera in an interesting place on the rim.
    3. Add a very large light inflatable structure to the inside of the bowl or pressurise the buildings. The air pressure is kept a lttle above atmospheric pressure by fans and airlock doors. This will not be sea worthy but it will keep out water through comnter pressure from a large enough volume of the bowl to maintain boyancy in an emergency. The bowl protects the bubble and the bubble keeps the structure afloat.
    4. or This may be a deployable ‘inflatable life raft’ tied down to the deck. It could be inflatable bubbles under the deck. If inflated it lifts the wholestructure to counter the weight of water flowing in. It should not be used routinely since if they are deployed the vessels center of mass windes up ablve sea level. ]
    5. Add sealed pressure tight corridors that link all the internal structures to the rim and life boats so if the rim or deck breaches you can still make it to safety bypassing the inflooding torrent.
    6. Make the hull a double hull with airbags inside concrete cell. This makes a breach of the hull almost impossible and raises the possibility that the air bag would press against any crack or hole and would partly seal it. [Applies for all sub surface sera stead structures and designs.]
    7. Add a false hull that waves must force their way over with drains to the sea that are normally closed. The sea level between this hull and the main hull is maintained at mean sea level for the tide. When a wave breaks over the first wall the valves are opperanted as its trough approaches. The energy is spent before it reached the bowl hull and the water drains away.
    8. Add a floating volume of fresh water contained in a plastic envelope around the out side of the hull. Fresh water floats on salt water. So If there is a breach in the concrete hull, the water flooding in is still boyant realtive to sea water. The vessel will take longer to sink. If there’s a breach in the plastic hull you just loose a few days desalinated fresh water. Very few forces will punch through a thick plastc hull, 2 metres of fresh water and a ferroconcrete hull.

    These add safety at minimul additional cost. They add complexity but so does any decoration.

    =========================================================================================================

    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #10569
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    As many here are aware I’m into plastic (but not ‘plastic magnets‘ nice one Patri). I’ve come up with a plan to cap the sea bed leaks. Not all the leaks at the BOP now.

    http://appliedimpossibilies.blogspot.com/2010/06/capping-gulf-oil-leak-with-plastic.html

    I need people to publicize this solution and get me the right contacts to get things rolling. I’m in Australia which further complicates things. If they can’t plug it and wont nuke it this is the third option. We also get to clean up and sell the oil.

    BP and Obama are clueless. If the tea party and the libertarians solve this crisis with out governmernt money or help it will change the political game forever. Are we up to the task?

    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy, water and sewerage.

    #10533
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant




    I have a plan to fix the Gulf oil spill/ leak however there appears to be multiple leaks. This is a down the hole leak. It can’t be plugged. The oil is leaking out of the drill shaft and into the porous sea bed. Its coming up in several places. The only solution is to put tent makers and sail makers and net makers together to create a set of large tent like canopies to anchor above the leaks. The oil rises into these conical tents. At the apex of these ‘tents’ we add 10ft diameter plastic/canvas pipes made of the same material as the tent. These pipes get the oil up to a hight that methane hydrates can’t form. We need robots in those big pipes to control clogging. At that point you can pump the oil out into tankers.

    A project could be put together buy volunteers to get the ball rolling on this containment option but I’m in Australia and don’t have the right contacts. I do have a good grasp of the plastics involved and the oceanology. I don’t think BP or Obama can solve this one they don’t think out side the box.

    The following posts on my blog will explain further: http://appliedimpossibilies.blogspot.com/2010/05/gulf-oil-leak.html

    and http://appliedimpossibilies.blogspot.com/2010/06/oil-leak-potential-catastrophe-and.html

    I need any contacts you can think of. wesleybruce@iinet.net.au

    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #9879
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant




    I’ve put up a sea steading display in Second Life at the Space Destiny /Midriver sim in scilands and written about it on my blog. http://appliedimpossibilies.blogspot.com/2010/03/float-ponds-in-second-life.html

    and http://appliedimpossibilies.blogspot.com/2010/03/green-dragon-boats.html and appliedimpossibilies.blogspot.com/2010/03/sea-steading-as-fleet-of-vessel-classes.html

    Why do a sea steading display in a space related sim? Because they see the connections between sea steading and space colonisation. Also everything seems to work in that sim and it has a nice bay. I posted on my blog rather than putting it all here because I’m paying for the hard drive space and have no picture limits. Please put any specific comments on the three blog posts on those blog comments lines. I know we probably have ample space on the sea steading site but I’m paying blogger so we may as well use the data capacity there as well.

    {Also notice how the google adds contradict the line of some of my blog posts. I’m a climate skeptic yet all the adds are for CO2 schemes! lol.}

    Jesrad also has Sea Steading facilities in Second Life. That’s more official than mine.

    See: http://wiki.seasteading.org/index.php/SecondLife


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy, water and sewerage.

    #9785
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    vincecate wrote:

    This is called a Semi-submersible. It is the most common type of floating oil platform but is usually tied to the ocean floor. If it is not its movement can get out of phase with the waves and run into trouble. Does not seem possible to make a small one that works. If you think otherwise try building some models and testing them in real waves.

    http://wiki.seasteading.org/index.php/Semi-submersible




    Not with active computer controlled suspension and wave prediction system. Sure you need backups on your backups but that’s be my point of the post. Active suspension systems have been around for cars, trucks and even trains for a few years. We now know that they can be programmed to handle complex wave states at relatively high frequencies, rutted roads and slippery surfaces. Wave frequency is lower giving interesting options. Active damping of buildings in high winds and earth quakes are also working out. In this case they use tuned mass dampers and sliding foundations.

    Getting out of phase with the waves is a real problem for a dumb mechanical system but add an active system and you can adjust. One interesting option is to sling a habitat under an arch based frame on a swath hull. Like a hammock on an 17th century craft. Some of these vessels had very complex bunksfor the officers though some did not work perfactly. I’ve seen slung tables and chair in scetches, even a slung queen sized bed have been done( for a real queen). There are stabilised bunks on some racing yachts. One liner had a central ball room that was fully gimbaled so it did not move. It worked but it may have been too ambitious. It may be viable to come up with two separate systems one for roll and one for heave. Both would cover the core and quarters leaving the weather decks with less damping.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy,water and sewerage.

    #9753
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    J.L. Frusha wrote:

    Sea-Anchors don’t help you hold position. Sea anchors are good for being towed into the wind, or using to face the prow into the wind, versus the current flow.

    That’s true for todays sea anchors but I’m talking about something that’s 20 times the area and is targeted at currents going the other way. No one to my knowlage has tried such a sea anchor system. I’m talking trawler net sized things. If the sea acnhor exceeds the surface area subject to wind and wave drift then, given basic physics, we should see the mass of the water countering these forces.

    I agree with you mooring to the sea bed is a possiblility in 5 kilometer deep seas and active sea keeping is possible if we have a cheap energy source. Always helps to have a plan A, B and C up your sleeve.

    One consideration is Patri’s idea of moving if you disagree with the local government. If we have big deep anchors these will be owned by someone. Anyone wanting to be moored to it gets ‘moored’ to the owner. My sea anchors may only reduce drift by half or so but they liberate us from the anchor king. There are also environmental considerations to any large anchoring system.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations and I have a Degree in sustainable Development, sustainable agriculture and renewable energy, water and sewerage.

    #9752
    Avatar of wesley_Bruce
    wesley_Bruce
    Participant

    Altaica wrote:

    P.S. Anyone know how much a cubic meter of Tropical Seawater weighs?




    About a ton per cubic meter. Sea water doesn’t vary enough in density to mess with buoyancy numbers. Fresh waters about the same. Rain can freshen the surface of the sea a little but not enough to matter.

    PS. Anyone who loads a sea stead to above 80% of its free board capacity is asking for trouble. For a spacious vessel its possible to have a suicidal party or something like that which gets everyone killed. In Sydney harbour someone tried that a few years ago on a private boat. They had enough on board to flood the gunwale, two more got on and down she went disc jockey and all.

    Even in a totally free libertarian society the captain would get sued into bankruptcy and sent to shore. Assuming he or she hasn’t gone down with the disco. Lol.


    For everyone’s information I was involved with the original Oceania Project in a small way. I’m also in several space organisations. And I have a Degree in sustainable Development, sustainable agriculture and renewable energy, water and sewerage.

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