Dip in Block paved drive

[beatts]

Hi,

How would I go about bringing this dip in my driveway (which occurred a couple of winters ago) back to a somewhat level surface without lifting the whole drive and relaying??

I am suspecting that this may not be possible. The area shown is a radius of around a metre, maybe a bit less and it is getting worse each year.

thanks

Untitled

• beatts
• 23 Oct 2014
• 1

Untitled

• beatts
• 23 Oct 2014
• 1

 

[Burnerman]

I'm afraid the drive will have to come up in the vicinity of the dip......either the hardcore wasn't deep and consolidated enough or it has become a heavy traffic area. Shame!
John

 

[JohnD]

...or there is a water leak under it.

 

[r896neo]

if the rest of the drive is pretty flat looking then a broken drain pipe or leak of some sort is definately possible.

It will not take long to lift but you'll have to dig some out and see whats going on. Putting a herringbone pattern back is difficult so clean the blocks thouroughly to remove sand from the sides.

 

[beatts]

The drive has been down around 20yrs with no issue whatsoever but that really bad winter we had about 2/3 yrs ago (well it was v bad up here in the N.E) and we had compacted ice and snow on the drive for about 3 weeks, it happened after that, during the thaw.

My neighbour has a similar dip too from the same period, further up the same stretch of block driveway.

 

[r896neo]

it could be frost heave of some sort?? what is the underlying soil type? clay? chalk?

 

[beatts]

Hi,

It is heavy clay type soil underneath.

 

[freddiemercurystwin]

There's no getting away from it.

the drive will have to come up