[CANUFNET] Tree roots and pavement

[Shields, Peter]

Hi Neal,
A lot of work and "numbers" have been worked on by Coder.  Some of the reports are in the Landscape Below Ground book #2 (II)  It talks about some pressures related to axial and elongating pressures that may help you in designing some details.  There are still a lot of what ifs of course related to species, vigour, size, etc., etc.  But this may be a good starting point for you.

There are some papers too by Misra, Dexter and Alston that discuss axial and radial growth pressures.  Older (86'ish) but may be of some use.  Just as a note, Gilman does have some details with root barriers form curbs etc. that may help.  Of course, researching Urban's work too.

I hope if you come to a conclusion and spec, you will be willing to share.  Great stuff and is needed for a vast number of engineers and architects to really start referring to in hopes to properly spec'ing sidewalk and asphalt details with trees and roots in mind.

Cheers,

Peter Shields
Senior Consulting Arborist
ISA Board Certified Master Arborist(r) ON-0570B, ISA Tree Risk Assessment Qualified(r)
ASCA Registered Consulting Arborist(r) #536
OMNR Butternut Health Assessor #252, Forest Technician
O - (905) 274-8300  C - (647) 465-4901
http://www.davey.com/canada/consulting-services.aspx
Trees Were Just the Beginning <http://www.youtube.com/watch?v=OnAennw1JUs>
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From: CANUFNET [mailto:canufnet-bounces at list.web.net] On Behalf Of Aven, Neal
Sent: Friday, April 25, 2014 12:15 PM
To: canufnet at list.web.net
Subject: [CANUFNET] Tree roots and pavement

Hi all,

I am currently searching for information related to the forces that tree roots exert.  The goal of my research on this topic is to work with an engineering firm to analyse these forces to inform building requirements in Surrey in order to give builders the specifications they need to install driveways and walkways that can better withstand the forces that tree roots exert.  The hope is that properly built driveways and walkways will then have fewer root heave problems in the future as our urban forest matures.

Do you happen to have any research at your fingertips on this topic?  Or any suggestions to direct my search?

Cheers,
NEAL AVEN
Urban Forestry and Environmental Programs Manager
[cid:image001.png at 01CF5EE1.C8238FA0]
Parks Division
14645 - 66 Ave, Surrey, BC, Canada V3S 5M2
T 604.501.5170 | F 604.501.5177 | www.surrey.ca

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