Moving a house or filling large lava tube .

[Cmb]

Does anyone have experience in moving a two level house or filing a large lava tube under an already existing house .
Am researching most cost effective method .
Thanks

[Seeb]

Reinforce tube with gunnite. Make wine cellar

[kalakoa]

Agree with Seeb: build huge underground bunker, leave lights on in the house as a decoy.

Bonus: use bunker to grow marijuana.

[oink]

I have nothing constructive to offer.

Curiosity compels me to ask how big, how far under the surface and under what kind of rock? As with the other posters, I see the possibilities of lemonade.

Pua`a
S. FL
Big Islander to be.

[unknownjulie]

I have to have my house up on jacks, while I fix the pier blocks underneith. It is very nerve-wracking. I am going to hire a smallish digging dozer/machine to dig down about 1 -2 feet, under the house, while the house is jacked up. I know this is a different job than yours, but may have some similarities so thought i'd mention it. Evidently, the average house weighs about 6 tons (or so I've been told). Ask around and see if someone you know has the jacks. They are fairly commonly used here- since so many houses are up on piers.

[Bullwinkle]

once a house takes a set ....tough to square it up with out replacing frame members .... check the windows - are they out of square?

[Cmb]

So, it sounds like a good thing we don't actually own this house .,although we were seriously considering it . I believe all of your contributions have helped us come to decision . We certainly do not need a bunker , a wine cellar or that much lemonade ! And we are trying to avoid too much stress .
Thanks guys

[DanielP]

Pea gravel is self compacting and can be delivered in concrete trucks. any in Hawaii?

[Haaheo okole puka]

Moving a house is directly related to the size, complexity of support members, surrounding terrain etc. There is no answer for that question unless an onsite preliminary evaluation is preformed. As per the re-enforcing the tube, you're facing the same issue of an onsite evaluation with additional engineering applied.
Unless it's a real gem of a home and you've plenty of extra clams to toss around... yes, it's probably best to avoid it all together.