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Anchor trench design

Anchor trench design

Anchor trench design

(OP)
I am confronted with regulators who doubt my assertion that anchor trenches are not needed to provide slope stability for an HDPE-lined lysimeter pan. They want to see a reference where HDPE liner has been used without an anchor trench - any suggestions?

RE: Anchor trench design

Hi:
I would consult a few manufacturers, regarding anchor trench need.  Maybe Gundle and others.  Do a Google search, if you need manufacturers names.  They sell it and would surely know what applications do and do not need a trench.  I am sure they have data on soil interface friction.  Also, there are products with one side of the HDPE has a rougher texture to reduce slippage.  If the lysimeter is a relatively small balanced structure, and the slopes not too steep, you may not have a problem.
Scott

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