Travelling over RPA's -temporary roadways?

[benedmonds]

What are the best options. The house is being built and construction traffic is going to need to pass over the RPA, only 15m.

 

"5837 6.2.3.3 .. ground protection should be capable of supporting any traffic etc.."

 

What have people used and how can you demonstrate that the protection is acceptable? Options so far-

 

Construct temporary cellweb road. Lots of literature demonstrating effectiveness but expensive....

 

Ali roadway or Hardwood roadway - cost less, easy to install. but I don't have evidence to demonstrate it's effectiveness

[benedmonds]

While I am thinking about it does anyone have experience for moling or directional drilling to get the services in?

[Cae Ffynnon]

While I am thinking about it does anyone have experience for moling or directional drilling to get the services in?

 

 

What is the soil like where you are? If you have boulders, or bedrock is not very deep it will make it difficult perhaps even impossible to do. Otherwise should be straight forward. If you have clay then you are laughing.

 

What about bog mats? The firm you hirer them off should have bumpf.

 

Chris:thumbup1:

[eggsarascal]

While I am thinking about it does anyone have experience for moling or directional drilling to get the services in?

 

What's the ground like?

 

I might be able to help with Moling.

[slack ma girdle]

6" of woodchip, with 3/4" ply over the top will cope with most traffic upto about 3 tons in weight

[benedmonds]

6" of woodchip, with 3/4" ply over the top will cope with most traffic upto about 3 tons in weight

 

Construction traffic could be 30 tons of dump truck..

[slack ma girdle]

Construction traffic could be 30 tons of dump truck..

 

Then you will need something that is heavier duty. The aluminium temporary roadway that bolts together is good but expensive.

If the RPA is having to deal with construction traffic of 30 tons then you are going to damage the RPA/ and or the canopy no matter what you do.

I would either re-route the traffic, or fell the tree and replant.

[benedmonds]

The trees have TPO's there is no other way in, the canopies will be fine, we just need to protect the compaction of root zone.

 

I am pretty sure the cellweb can distribute the weight although they have not got back to me. The ali and hard wood roadway people both say their products are fine but can't provide any evidence.

[Chris at eden]

200mm Cellweb is ok for traffic between 30 and 60 tonnes depending on ground conditions. You may get away with 150mm if ground conditions are right.

 

Speak with Gavin Proud from Geosynthetics. He is one of their technical specifiers so should be able to help.

 

email - [email protected]

 

Hope this helps

[benedmonds]

200mm Cellweb is ok for traffic between 30 and 60 tonnes depending on ground conditions. You may get away with 150mm if ground conditions are right.

 

Speak with Gavin Proud from Geosynthetics. He is one of their technical specifiers so should be able to help.

 

email - [email protected]

 

Hope this helps

 

Cheers, I am waiting to hear back from them. Do you know the sort of costs?