Tonka's Skipper
Well-Known Member
Its like the saying goes......................its all about a man and his toys, that is why digging a hole in the ground can be so much fun!
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Avatar construction aerial updates
- Thread starter photoflight
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I will say that there is something incredibly satisfying about seeing something that you created in your head and on a computer take shape in the real world.
danlb_2000
Premium Member
Its like the saying goes......................its all about a man and his toys, that is why digging a hole in the ground can be so much fun!
Disney is really missing out on an opportunity with their parks construction....
http://diggerlandusa.com/
NoChesterHester
Well-Known Member
Here is the explanation for my comment "sheet piling used when soil can not be dug out to proper relief angle".
The relief angle for soil is the maxim angle that a hole can be dug without the sides collapsing in. For something like the red clay in Georgia you can darn near get away with having a straight 90 degree wall. However, when you are dealing with the sandy soils of Florida, that angle has to be much less. If you don't have the room to dig out the hole to meet this angle you have to put up some sort of a barrier to prevent the soil from collapsing in. For large sites, sheet pilings are ideal as you just keep adding more and more sections. For smaller projects, one piece construction units commonly called "trench boxes" are used.
Isn't that called the angle of repose?
Tom
Beta Return
Speaking of this, I couldn't find your splice-plate-Mickey at Cookies Too. Isn't that where it is?
It very well might be. My Civil engineering vocabulary is a tad rusty as I have spent the last 20 years of my engineering life above the walls.
NoChesterHester
Well-Known Member
It very well might be. My Civil engineering vocabulary is a tad rusty as I have spent the last 20 years of my engineering life above the walls.
It was an excellent explanation regardless.
Cesar R M
Well-Known Member
Might as well start a thread since the construction "officially" is under way.
As I understand it the new area is replacing Camp Minnie Mickey so that's what I've concentrated on. If they expand south into the open field I'll expand coverage on these and future images (if and when I get them).
First as a baseline, Camp Minnie Mickey in January 2013
Click to enlarge...
The site about a week after the official "ground breaking". Not much going on except Camp Minnie Mickey is closed.
Click to enlarge...
Related, here's the new Festival of the Lion King theater, due north of the old location. This shows a transition from 2013 to 2014 note: updated the video, the previous date captions were wrong
Question... are they gonna add new ways to enter and exit to the new theatre?
because looking at the newer photos.. makes me wonder how "tight" the entrance is right now..
Does that meant hey will require to put very strong concrete bases and pillars?
note that I'm a IT engineer, so I know nothing of buildings lol!
Maybe that's used to disassemble the remaining things from Camp M&M and the theatre?
As is most of the state. Given the concept model, it would not surprise me if there ends up being more concrete and steel blow ground than above.
NoChesterHester
Well-Known Member
Strength of the man made materials isn't the problem. The weight of the building must be distributed to the soil in some fashion. Much of the soil in Florida is terrible; made up of decomposing organics or water deposits such as silt. Both have very poor capacity and tend to heave during rain events.
Because it is so bad the building weight has to be spread out over a greater area (deeper) using either drilled or pounded friction piles.
The way it works is that the foundation piles have to be deep enough that the surface area of the pile can adequately transfer the weight of the building into the ground without sinking through friction. Imagine supporting a rock on a bowl of oatmeal with nothing but wood dowels.
An alternative method is to dig out the bad dirt then float a HUGE slab of concrete to evenly distribute the weight. This is called a raft, but raft foundations don't do well with point loads, such as moving machinery or tall columns.
GrumpyFan
Well-Known Member
Good stuff, thanks for posting.
I'm curious though, given the soil composition, wouldn't anything they do eventually shift or sink? Or are they driving the pilings down until the hit bedrock? I assume that's what they're doing, correct?
roj2323
Well-Known Member
it's a common misconception that buildings naturally want to sink. The reality is structures tend to act more like boats in that they want to float on top of the dirt provided the load is evenly distributed. It's only when you start building structures like high rises that you have to take extra precautions like installing pilings down into the bedrock.
some interesting reading:
http://www.cantsink.com/helical-piles-vs-concrete
NoChesterHester
Well-Known Member
No, to both questions.
Modern foundations are designed with a huge factor of safety. No matter the system it isn't going anywhere.
Not everywhere has accessible bedrock. Accessible bedrock is within a reachable depth from the surface. Parts of Florida does, but obviously not at AK. The piles work just as I stated - through friction not bearing. Friction - the same force that keeps your car ties on the road.
I understand that could be conceptually scary - that a 10,000 ton building is being held in place by surface friction, but that is really how it works.
Here is a decent video on skin friction and how it works in construction.
Crazydisneyfanluke
Well-Known Member
Any recent updated pics? anything been cleared?
Nothing from me - we've been busy doing work in other places.