[ANSS-netops] Trillium Compact installation

[Mark E. Meremonte]

Hi Dave,

For 6 months to a year we use the small vault systems we developed 
for portable systems:  see attachments.  For the portables we try to 
install insulated vaults at least 6 inches below the 
surface.   However, for permanent install I would not install less 
than a foot below the surface; or, if necessary, we mound at least a 
foot of soil over top of vault if less than a foot below surface.

For permanent I will probably be using a smaller version of our 
regional vaults with sandblasted glass bases and using 
insulation.   See 
ftp://ftpext.usgs.gov/pub/cr/co/golden/hazards/Eq_Effects/Vaults/Regional/5_Vault_CMG3-MEMS.jpg

Yes, I believe some tests should be done on temperature 
effects.  Similar to other BBs, they should be insulated to stabilize 
temps.  Sounds like an experiment for Bob Hutt at ASL.

Some thoughts and Regards,
Mark

At 15:20 7/19/2011, David S. Croker wrote:
>Hi All,
>
>Simple question with a potentially longwinded answer (simple answer 
>preferred):  What kind of vault installation do you do for permanent 
>Trillium Compact sites?  Full-blown vaults with lots of insulation, 
>slightly reduced scale vaults with a little less insulation, or 
>simple small scale tubes buried a couple feet down with minor 
>insulation?  How do they respond to temperature changes?
>
>Thanks for any insight you might have.
>
>Dave
>
>__________________________________________________________
>USGS - Earthquake Science Center - NCSN Field Operations Manager
>David S. Croker                                         office (650) 329-4697
>345 Middlefield Rd, MS 977                           fax (650) 329-4732
>Menlo Park, CA 94025                                 cell (650) 465-4334
>email: croker at usgs.gov
>Quake info: http://earthquake.usgs.gov/
>USGS URL: http://www.usgs.gov/
>
>_______________________________________________
>ANSS-netops mailing list
>ANSS-netops at geohazards.usgs.gov
>https://geohazards.usgs.gov/mailman/listinfo/anss-netops


*********************************************************
Mark E. Meremonte        Geophysicist    USGS/ANSS/NEIC

U.S. Geological Survey        Work: 303-273-8670   Cell: 303-478-5766
MS 966, Box 25046          Email: meremonte at usgs.gov
Denver, CO  80225             Web: http://geohazards.cr.usgs.gov

Ship:  U.S. Geological Survey, 1711 Illinois St., Golden, CO 80401
**********************************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://geohazards.usgs.gov/pipermail/anss-netops/attachments/20110720/a8874e67/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2_Vault_CTrill-Cabling.JPG
Type: image/jpeg
Size: 931205 bytes
Desc: not available
URL: <http://geohazards.usgs.gov/pipermail/anss-netops/attachments/20110720/a8874e67/attachment-0001.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 3_Vault_Insulation-Around-CTrill.jpg
Type: image/jpeg
Size: 959229 bytes
Desc: not available
URL: <http://geohazards.usgs.gov/pipermail/anss-netops/attachments/20110720/a8874e67/attachment-0003.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 4_Vault_Insulation-Top-CTrill.jpg
Type: image/jpeg
Size: 973687 bytes
Desc: not available
URL: <http://geohazards.usgs.gov/pipermail/anss-netops/attachments/20110720/a8874e67/attachment-0004.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 5_Vault_Buried-To-Lid.jpg
Type: image/jpeg
Size: 940156 bytes
Desc: not available
URL: <http://geohazards.usgs.gov/pipermail/anss-netops/attachments/20110720/a8874e67/attachment-0005.jpg>