captainmorgan
Well-Known Member
From a overhead view it looks like a large section of patio that nearly reached the pool outside the footprint of the building dropped about 6 feet.
Miami Building Collapse
- Thread starter schuylaar
- Start date
DIY-HP-LED
Well-Known Member
The fire at the end was caused by compressed air, heated by the pancaking floors lighting the flammable contents. I wonder how deep down the cavern that caused the sink hole was and how extensive the caves are! Looks like some seismic surveying might be required, or there could be other towers going down in the area.
captainmorgan
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Reports are now coming out that the building had been sinking into the earth since the 1990's.
printer
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Researcher: High-rise that collapsed had been sinking at alarming rate
“I looked at this morning and said ‘Oh my God.’ We did detect that,” Shimon Wdowinski, professor in the Department of Earth and Environment at Florida International University, told the newspaper.
Wdowinski said his research found the building was sinking at a rate of about 2 millimeters a year in the 1990s, and the sinking could have slowed or accelerated in the time since. The study was not done for the purpose of determining the soundness of the building but as part of an ongoing project to identify which parts of Miami could be most impacted by sea-level rise and coastal flooding.
“It was a byproduct of analyzing the data. We saw this building had some kind of unusual movement,” he told the newspaper.
www.news4jax.com
“I looked at this morning and said ‘Oh my God.’ We did detect that,” Shimon Wdowinski, professor in the Department of Earth and Environment at Florida International University, told the newspaper.
Wdowinski said his research found the building was sinking at a rate of about 2 millimeters a year in the 1990s, and the sinking could have slowed or accelerated in the time since. The study was not done for the purpose of determining the soundness of the building but as part of an ongoing project to identify which parts of Miami could be most impacted by sea-level rise and coastal flooding.
“It was a byproduct of analyzing the data. We saw this building had some kind of unusual movement,” he told the newspaper.
Researcher: High-rise that collapsed was sinking, due for recertification
The 12-story beachfront condominium tower in Miami-Dade County that collapsed early Thursday morning was built in 1981 on reclaimed wetlands and a Florida International University researcher told USA Today that the building had been sinking at an alarming rate.
printer
Well-Known Member
The contribution of land subsidence to the increasing coastal flooding hazard in Miami Beach
InSAR study of Miami Beach
The subsiding areas correlate well with the areas that were built on reclaimed swamps.
InSAR study of Miami Beach
The subsiding areas correlate well with the areas that were built on reclaimed swamps.
Unclebaldrick
Well-Known Member
Why? Isn't that what insurance is for? #triangleshirtwaist
there's a lot of dead people in that heap.
Unclebaldrick
Well-Known Member
You may want to look into that hashtag.
Here's a podcast about it. Have not heard it, but I respect the podcasters.
Behind The Bastards - The Triangle Shirtwaist Fire
printer
Well-Known Member
Government Cut, Pre-Excavation Grouting of Shafts in Silty Sand and Coral Limestone Formations
The Miami-Dade County Water and Sewer Department required an aging sewage line under the Government Cut, a channel between Fisher Island and Miami Beach, to be replaced.
The geology of the area consisted of highly variable porous soft limestone, coral and silty sand, which is typical for southern Florida. ECO developed a specially formulated grout to treat these highly variable soils and rock strata.
LITERATURE REVIEW AND ASSESSMENT OFGEOLOGIC LOGS TO DETERMINE THE EXTENT OFA DENSE LIMESTONE LAYER IN THE UPPERPORTION OF THE BISCAYNE AQUIFER IN THEPENNSUCO WETLANDS, MIAMI-DADE COUNTY,FLORIDA
Ground-Water Flow Directions and Estimation of Aquifer Hydraulic Properties in the Lower Great Miami River Buried Valley Aquifer System, Hamilton Area, Ohio
The Miami-Dade County Water and Sewer Department required an aging sewage line under the Government Cut, a channel between Fisher Island and Miami Beach, to be replaced.
The geology of the area consisted of highly variable porous soft limestone, coral and silty sand, which is typical for southern Florida. ECO developed a specially formulated grout to treat these highly variable soils and rock strata.
LITERATURE REVIEW AND ASSESSMENT OFGEOLOGIC LOGS TO DETERMINE THE EXTENT OFA DENSE LIMESTONE LAYER IN THE UPPERPORTION OF THE BISCAYNE AQUIFER IN THEPENNSUCO WETLANDS, MIAMI-DADE COUNTY,FLORIDA
Ground-Water Flow Directions and Estimation of Aquifer Hydraulic Properties in the Lower Great Miami River Buried Valley Aquifer System, Hamilton Area, Ohio
what does this all mean? if it was sinking 2mm yearly, that's not a lot. can you explain?Government Cut, Pre-Excavation Grouting of Shafts in Silty Sand and Coral Limestone Formations
The Miami-Dade County Water and Sewer Department required an aging sewage line under the Government Cut, a channel between Fisher Island and Miami Beach, to be replaced.
The geology of the area consisted of highly variable porous soft limestone, coral and silty sand, which is typical for southern Florida. ECO developed a specially formulated grout to treat these highly variable soils and rock strata.
LITERATURE REVIEW AND ASSESSMENT OFGEOLOGIC LOGS TO DETERMINE THE EXTENT OFA DENSE LIMESTONE LAYER IN THE UPPERPORTION OF THE BISCAYNE AQUIFER IN THEPENNSUCO WETLANDS, MIAMI-DADE COUNTY,FLORIDA
Ground-Water Flow Directions and Estimation of Aquifer Hydraulic Properties in the Lower Great Miami River Buried Valley Aquifer System, Hamilton Area, Ohio
captainmorgan
Well-Known Member
printer
Well-Known Member
The building might have been fine but the soil may not be up to holding a 12 story building. The whole area was swamp land that was filled in. So for any building of height you would have to put piles into the bedrock. The problem with the bedrock is that it has layers of limestone, layers of crumbling material. It is two aquifers, one on top of the other separated by some limestone. The water level of the aquifer (at least the top one) seems to go up and down depending what the river is flowing. So it is not like this is real solid ground. Maybe the piles were not adequate for the building on that piece of property? We will probably find out later but there is a reason the building was sinking. I just searched for a reason why.
A New York firm was the architect from what I read (unconfirmed). Maybe they were like the ones that designed the helicopter pad on one of our hospital buildings. They put a recirculating heating system in the pad. It doesn't work well at -20, the architects said it doesn't snow below -20. Maybe not where they live, here it does. The same thing might be the cause of the collapse. Build a building on a sinkhole and it will sink. I know, my foundation walls have sunk a few inches in the past 20 years. I think there is an underground stream under my house. They did the same thing here. They filled in the low spots and built upon it. I dug down to sink a 45 gallon drum to collect the water and pump it away in the spring. I went through a layer of topsoil, clay, and then four feet lower I hit topsoil again.
A New York firm was the architect from what I read (unconfirmed). Maybe they were like the ones that designed the helicopter pad on one of our hospital buildings. They put a recirculating heating system in the pad. It doesn't work well at -20, the architects said it doesn't snow below -20. Maybe not where they live, here it does. The same thing might be the cause of the collapse. Build a building on a sinkhole and it will sink. I know, my foundation walls have sunk a few inches in the past 20 years. I think there is an underground stream under my house. They did the same thing here. They filled in the low spots and built upon it. I dug down to sink a 45 gallon drum to collect the water and pump it away in the spring. I went through a layer of topsoil, clay, and then four feet lower I hit topsoil again.
captainmorgan
Well-Known Member
This one may be on bad ground also, very recent.
www.cnn.com
People flee in panic as skyscraper wobbles in China, despite no earthquake and fine weather | CNN
Thousands of shoppers in the southern Chinese city of Shenzhen fled the vicinity of a 957-foot (291-meter) skyscraper Tuesday, after it inexplicably began swaying.
DIY-HP-LED
Well-Known Member
printer
Well-Known Member
"The data, originally collected between 1993 and 1999, showed that most of the Miami area, apart from a few hotspots in the area, did not decline noticeably. Wdowinski says most of these occurred in the western part of Miami, where the elevation is lower. The level of sinking in the Champlain condominium is unusual, he said.
Wdownski said he didn't think anyone in the city or state government had any reason to be aware of the study's findings. Most of this focused on potential flood hazards, not technical concerns. The mention of the “12-story condo” in the study was reduced to a single line.
"We didn't attach too much importance to it," said Wdowinski.
He added that the incident reminded him of the potential benefits of using such data to identify areas of potential structural risk now and in the future."
www.ampgoo.com
Wdownski said he didn't think anyone in the city or state government had any reason to be aware of the study's findings. Most of this focused on potential flood hazards, not technical concerns. The mention of the “12-story condo” in the study was reduced to a single line.
"We didn't attach too much importance to it," said Wdowinski.
He added that the incident reminded him of the potential benefits of using such data to identify areas of potential structural risk now and in the future."
Collapsed Miami condo had been sinking into Earth as early as the 1990s, researchers say - AmpGoo Entertainment and news from the worlds!
The building had been sinking at an alarming rate - about millimeters a year - according to a 2020 study.
www.ampgoo.com
injinji
Well-Known Member
There are (at least) two towns named Miami. The one in Ohio isn't the one where the condo fell.