Just like in the southern US. The friction of soil against the piles will support tons of weight. The scary thing I'm seeing done in my area is basically Floating Slabs. Most of our good sites are long sold so they are building on what I call Crawfish ground. Bringing in big shot rock, smaller gravel and Red Dirt then after a way to quick and inadequate compaction floating a slab on top.
Hey Josh.. Saw them doing this on a new build motel site up here in Rotorua. Driving past everyday i wondered what the hell they were building at first.. they had all these huge wooden poles driven into the ground and sticking up about 3 metres above ground.. before they cut them to height! Pumice upper soil layer up here. Cheers bro.. enjoy your vids.. even tho im not a builder :)
Great video. Yeah the amount of weight that timber piles (roundwood) can take is nuts. I've been involved in a few projects of driving 650 sed piles that where 16.5 meters long
An Engineer needs to test soil, design piles and sign off- but Doesn't need to be "geotech" a structural engineer can do it too if soil test is within acceptable range
depending on the engineers details, some want it flush with top of sand, some want it 25mm into the slab, sometimes we need to drill in steel to tie it all together, the main idea is the piles are transferring the load down to good ground
Hello Josh, a happy Sunday to you and yours. I feel like I'm the last person to see your content.Great job keep it up. For your form box , boxing where or which brand are you using to keep the forms in place ?? Thanks a lot and keep up the wonderful work
The proposed ffl of the new slab would be close to the natural ground level, hence the use of a slab. If they used the timber piles to build a subfloor (bearers + joists + flooring) the FFL might be higher than what is required for the area they are constructing in. If they were in a flood prone zone (i.e to achieve a higher finished floor level) or on a hill side, they would've opted for piles.
With this thing called "climate change" we can expect higher intensity rainfall and more slips in future storms. Part of the reason for all these slips we have seen in NZ storms this year is because concrete ground floor slaps don't let stormwater soak into the ground underneath by concentrating stormwater in areas around houses that causes the ground to slip. The economy of laying a concrete slab dominates raised ground floors -like what they did in the "olden days". Raised ground floors enable stormwater a larger area to soak and drain away. Maybe adding timber piles will add to the soil stability and therefore your house if there is a slip but maybe doesn't prevent a slip from happening.
Just like in the southern US. The friction of soil against the piles will support tons of weight. The scary thing I'm seeing done in my area is basically Floating Slabs. Most of our good sites are long sold so they are building on what I call Crawfish ground. Bringing in big shot rock, smaller gravel and Red Dirt then after a way to quick and inadequate compaction floating a slab on top.
Train tracks hold up a massive load on rocks alone
Hey Josh.. Saw them doing this on a new build motel site up here in Rotorua. Driving past everyday i wondered what the hell they were building at first.. they had all these huge wooden poles driven into the ground and sticking up about 3 metres above ground.. before they cut them to height!
Pumice upper soil layer up here.
Cheers bro.. enjoy your vids.. even tho im not a builder :)
Great video. Yeah the amount of weight that timber piles (roundwood) can take is nuts. I've been involved in a few projects of driving 650 sed piles that where 16.5 meters long
Hey mate,
Great content. Would be awesome if you could do similar videos based on each stage of the build.
Cheers
Interesting stuff Josh, keep it up 👍
Thanks! 👍
Amy thoughts on hempcrete??
Great video
Great video Josh. Does Geotechnical Engineer need to witness and sign off the driven piles before pouring the concrete as part of Building Consent ?
An Engineer needs to test soil, design piles and sign off- but Doesn't need to be "geotech" a structural engineer can do it too if soil test is within acceptable range
Did you cut the piles flush with the ground and just do a slab as normal on top of them?
depending on the engineers details, some want it flush with top of sand, some want it 25mm into the slab, sometimes we need to drill in steel to tie it all together, the main idea is the piles are transferring the load down to good ground
Hello Josh, a happy Sunday to you and yours. I feel like I'm the last person to see your content.Great job keep it up. For your form box , boxing where or which brand are you using to keep the forms in place ?? Thanks a lot and keep up the wonderful work
So why still pour concrete after you drive the piles. Wouldn't it be quicker and cheaper to just build a wooden floor on the piles?
The proposed ffl of the new slab would be close to the natural ground level, hence the use of a slab. If they used the timber piles to build a subfloor (bearers + joists + flooring) the FFL might be higher than what is required for the area they are constructing in. If they were in a flood prone zone (i.e to achieve a higher finished floor level) or on a hill side, they would've opted for piles.
Also better insulation with a concrete slab.
great video.
Glad you enjoyed it
Surely it would help the piling if a point was on the end?Why use wood,it’ll rot eventually?
I thought the same thing when I first learnt about this building method, Look up petrification and Venice wooden piles :)
With this thing called "climate change" we can expect higher intensity rainfall and more slips in future storms. Part of the reason for all these slips we have seen in NZ storms this year is because concrete ground floor slaps don't let stormwater soak into the ground underneath by concentrating stormwater in areas around houses that causes the ground to slip. The economy of laying a concrete slab dominates raised ground floors -like what they did in the "olden days". Raised ground floors enable stormwater a larger area to soak and drain away. Maybe adding timber piles will add to the soil stability and therefore your house if there is a slip but maybe doesn't prevent a slip from happening.
how i wish to go there nz to work as labourer...GODS WILL
Kiwi?
Looks expensive.
niks aan , in Nederland doen ze dit al in de jaren 1900
Termite food? NZ such a woke country uses a lot of timber
Nz does not have termites