Tricky plot - piling options

[ToughButterCup]

12 hours ago, Russell griffiths said:

...

I would do an assessment of your access and send it out to a few companies and see what sort of rig they have to fit your site. 
...

 

Good advice. BUT

When we did a similar exercise (narrow single lane track) , the rig driver  could not have cared less about the documentation we offered him (via his company office).

He arrived with the rig,  looked at the couple of really tight corners, - sniffed -  spat - and muttered about him having forgotten his stone saw. 

 

"Why do you need one ?" I (stupidly) asked

"That road sign's gonna have to come down" I ran and fetched ours.

 

Didn't need it.

Heres' the rig. Made in Germany by Zeppelin - yes, thats right, you couldn't make it up...... airships and piling rigs

 

 

[saveasteading]

15 minutes ago, JackOrion said:

likes of Bullivant / Van Elle etc? 

Keller. 

 

I used keller loads of times, especially on poor ground. Esp vibro replacrment.

Bullivants have interesting alternatives too.

[saveasteading]

2 hours ago, saveasteading said:

interesting alternatives

You absolutely need the ground report to be emailable,  because they will want to see it for a quick look before any other discussion.

 

Their sales people are technical specialists who will know from a glance what they can offer.

 

I should say, that your Engineer cannot know the relative costs of all options, or how they affect the total build cost,  and I often changed the process from what the clients' original designer had suggested.

And presumably you aren't paying them enough to do this management for you. So get on the phone to the pilers....with the ground report ready to ping to them.

 

 

[JackOrion]

Many thanks for this @saveasteading – I'll get all the info together and get in touch with some more companies once back next week. I'll keep you posted on progress.

[Russell griffiths]

Bullivants where doing 200 houses a half mile from me, I called the office and they said they wouldn’t do it as it was just not worth moving the kit for a £15,000 job. 
 

if your rock drilling I can see that getting very expensive 

hope the plot was cheap enough to cover this, the design looks awesome, I hate that word😂. But it seems appropriate. 

[JackOrion]

Thanks.

 

Yeah, the plot was about 30% market value due to a legal issue that was relatively easy to sort! The ground was at that point was of course unknown... but seems like it will be the factor that evens things out! Win some lose some. We'll see.

[saveasteading]

35 minutes ago, Russell griffiths said:

 

if your rock drilling I can see that getting very expensive 

I'm wondering why they wouldn't stop when they hit the rock.

[Russell griffiths]

1 hour ago, saveasteading said:

I'm wondering why they wouldn't stop when they hit the rock.

Cos it will slide off the hill 😂😂

[saveasteading]

54 minutes ago, Russell griffiths said:

Cos it will slide off the hill 😂

Good point. But do we know that? If the rock stratum is reasonably horizontal, perhaps not. 

[JackOrion]

The proposals we have had so far include three different piling techniques - but all recommend rock sockets for the extra stability this will provide.

 

For context, our plot is on a south facing slope within quite a steep sided valley, which might help explain the belt and braces approach.