P Bolts

[ianball11]

[gmod]I split this general discussion about P Bolts from the 'Cliff Cavern Ropes' discussion inthe 'Derbyshire' section'[/gmod]

unless it's done permenantly, i.e. with p-bolts.

Does the P in P-bolt stand for Permanent?  :-\

 

[SamT]

Does the P in P-bolt stand for Permanent?  :-\

No its the shape of them before there placed

 

[ianball11]

haha, thank you Sam, I was suggesting that although p-bolts are pretty pop proof, I wouldn't say they are permanent.

 

[Rob]

...I wouldn't say they are permanent.

I think I would, at least in the sense that i'm used to refering to the word.

 

[ianball11]

Have you seen the test data from the Yordas stream bed test!  Permanent seems pretty valid after reading that!

http://www.cncc.org.uk/documents/test_bed_no._1_and_test_results.pdf

 

[Alex]

After reading that would it not make sense to just see the effect after placement to build a damn to divert the water when they are placed and release the dam once the resin had bonded?

 

[paul]

After reading that would it not make sense to just see the effect after placement to build a damn to divert the water when they are placed and release the dam once the resin had bonded?

As the document says "The scenario was to attempt to re-create a situation where surface anchors would be required to be installed in a streambed, underwater and subjected to freeze/thaw conditions throughout the year.", I suspect the interest was in testing a situation where you couldn't dam the water and see what happens if the anchors were placed while water was flowing and then subject to freeze/thaw cycles.