What causes sinkholes? #shorts #sinkhole #sinkholes

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Even under houses. Sleep well tonight kiddies!

bemusedbandersnatch

Illinois and Missouri and Kentucky, Pennsylvania had so many mines they are common.

jewelleryaddict

China has recently been experiencing a plague of these sinkholes due to what they call “Tofu-Dreg” construction and a lack of drainage infrastructure. It’s crazy!

mikestewart

Damaged infrastructure sinkholes are so scary because they pop out of seemingly nowhere and grow really fast!

Moscato_Moscato

My mama say that sink holes happen cause people get too heavy and the earth just cant hold'em no more

michaelross

I grew up in an area built on limestone. The way the houses were built was two semi-detached homes (with each room layout mirroring each other, so connected living room to living room) with "lean-tos" on the opposite side (containing a downstairs toilet and another room for whatever you required; often housing coal/wood if you had that sort of fireplace). The lean-tos on either side of the house would be connected to the next ones of the next set of semi-detached housing. I describe this (typical red-brick council housing from the 1950s for anyone in the UK) because what happens to one can happen to its "twin".

Many years ago, probably in the late '60s (I was born but don't remember it), the old lady who lived nextdoor woke up, went downstairs to make a cup of tea, and nearly fell into the massive sinkhole which had swallowed up her entire kitchen! The walls were still intact, somehow, but everything else was gone. As it was a kitchen/diner, that included her table and chairs, the cooker (probably a gas one based on what was most common then), cupboards and even the kitchen sink! It was a disaster with its own punchline.

Fortunately she was fine, so the council moved her out temporarily and filled in the hole. That house is still standing AFAIK (I haven't been back since my Dad died about 9 years ago). Like I said, twin houses, so you can take a punt as to what happened to us. Fortunately, my Dad had been convinced that he heard water at the front of our lean-to. He had the council and water board out and they "tested" everything but found nothing. Dad, however, was a very determined man and since he'd taken early retirement from the steelworks, he felt in a position to be "on guard" 24/7, which is just as well because one night he heard something at that corner of the house and he went into action. He propped up the walls, and kept a close eye on everything, letting us sleep because we were on the opposite side of the problem. There was no big, wide hole, but wide enough for Dad to look in with a powerful torch and barely see any rock, _mostly_ (but definitely not only) in the direction away from the main body of the house.

The council temporarily moved us out the next day and it took 3 months for them to fix everything. Dad had been right - there was a small but significant enough water leak which had eroded the bedrock in that area. IIRC it took 120 tons of concrete piles to secure the house (each time they put one in they discovered the need for another!), plus extra in-fill (and new water pipes of course!) to make it safe. 40+ years on it's still there too, so they did a good job!

Always find out what your house is sitting on, regardless of who owns the house. A geological survey map should give you a good idea. If you have anything like sandstone or limestone, especially if there's a high water table or underground water pipes, find a way to get it checked out by an independent surveyor every so often. We were lucky as council tenants, it cost us only in inconvenience (so nothing to complain about then), but without Dad's vigilance, who knows what would have happened!

y_fam_goeglyd

I grew up in Illinois and the mines are the main reason there's sinkholes and everyone teaches or should that if your near a mine watch for sinking ground.

jolenemanns

I always wondered why sink holes are not square shaped.

Cheka__

So, is this a teaser for an upcoming NOVA documentary, "Why Sink

CATDRL

Thank you for such a succinct explanation! I’ve always wondered, but was too lazy to look it up, lol!🤭

KelliDee

Buggsy 🐇 was on his way to Albuquerque via Illinois.

richardbause

The Appalachian mountains have shed their giant peaks and the broken rock has filled in those states mentioned in the vid, a huge area to the west of that ancient mountain chain!

Larry-jb