[ExI] florida building collapse

[Adrian Tymes]

Random thought: there is no record of underground construction or expansion
in the area, is there?

On Mon, Jun 28, 2021 at 11:55 AM spike jones via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

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> *From:* extropy-chat <extropy-chat-bounces at lists.extropy.org> *On Behalf
> Of *Adrian Tymes via extropy-chat
> *Sent:* Monday, June 28, 2021 11:17 AM
> *To:* ExI chat list <extropy-chat at lists.extropy.org>
> *Cc:* Adrian Tymes <atymes at gmail.com>
> *Subject:* Re: [ExI] florida building collapse
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> (Quoting Spike's letter in full to preserve the photos.)
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> >…It looks to me like there is still water in the left (deeper) side of
> the pool, and that the collapsed area - at least the surface part - does
> not quite intersect the pool, though the debris suggests the collapse might
> have intersected the pool's plumbing, draining part but not all of the
> pool.  Just to the pool's right, there is more than enough collapsed space
> for most of the pool's water to have sloshed out onto - thus, there's no
> need to speculate about whether the sinkhole itself was wet or dry, when
> the "missing" water could have spilled out on top of the collapse (and then
> evaporated).
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> Or drained somewhere, ja.  Not evaporated.  Adrian you have had the good
> fortune to grow up in a dry climate.  In Florida, particularly in the
> summer, the humidity is seldom much below 80%.  One can go to the locker
> room early before anyone else is around, get a shower, track thru on the
> concrete floor, come back an hour later and wet tracks are still clearly
> visible.
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> This is part of what is puzzling: the elevation is so low in most of those
> areas, there isn’t much space for water to drain anywhere.  I see what you
> meant that the deep end of the pool still contains water, which suggests it
> wasn’t broken pipes below that drained the pool.  A pool drain is at the
> deepest part of the deep end, one place only (usually.)  the shallow end of
> a standard pool is usually 4 ft.  This looks like the water might have
> drained through structural compromise of the shallow end, closest to where
> the deck gave out.
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> This photo points away from the structural engineers and toward the
> geologists who certified the site for a mid-rise.
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> spike
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> On Mon, Jun 28, 2021 at 10:57 AM spike jones via extropy-chat <
> extropy-chat at lists.extropy.org> wrote:
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> *From:* extropy-chat <extropy-chat-bounces at lists.extropy.org> *On Behalf
> Of *Adrian Tymes via extropy-chat
> *Subject:* Re: [ExI] florida building collapse
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> >…Maybe she just noticed the swimming pool empty because she didn't have
> line of sight to see what was happening to the lower floors of the building
> she was in?  spike
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> Adrian help me make sense of this photo pls:
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> The woman who was on the phone told her husband that the pool deck had
> caved in:
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> We can see the pool deck has dropped down looks like a good coupla meters
> and I can see the pool is empty, but I don’t see water over the dropped
> pool deck.
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> What does that tell us?  Where did the pool water go?  Usually a sinkhole
> is an underground cave filled with water, but this one didn’t have water
> down there.  I can’t figure out why because the sea level is only a few ft
> below that bottom floor.  Where I cheerfully squandered my tragically
> misspent childhood, a young miscreant could not dig a hole deeper than
> about 5 ft before hitting mud.  Another ft below that, the hole would fill
> with water as fast as she could haul it out.
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> I don’t understand how there could have been a big dry underground cave,
> but the initial photos suggested it: 12 stories of debris would make a
> taller pile than it looks like, unless a good portion of the debris is
> currently below the surrounding ground level.
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> Imagine the psychological impact for anyone, particularly Floridians, who
> live or work in high rise buildings.  Every time they hear a creak or pop,
> they will hafta wonder if their time on this mortal coil is drawing to an
> abrupt close within seconds.  That would hafta break one’s concentration.
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>
> spike
>
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