[BNC-all] Possible Vibration at BNC

[Weaver, John R]

Work is commencing on the enclosure for the Acid-Waste Neutralization (AWN) system.  While the impact on any operations at BNC should be minimal, there will be some activities early in the project that could cause some vibration.

This activity will take place at the southwest corner of the BNC. This work will be done on concrete that is not connected to the BNC - any vibration would be transmitted through the ground.  The closest vibration-sensitive equipment is the Vistec e-beam writer, about 35 feet away.  Next would be the Titan TEM and the Raith e-beam, both about 175 feet away.

Weather permitting, the work will begin next Thursday, 22 April 2010, and last until the following Wednesday, 28 April 2010.  Most of the activities will involve saw cutting, which should have no vibration impact.  In some cases, however, a jackhammer will be used, and in all cases a backhoe and/or front loader will be used for the concrete removal.  A more detailed schedule follows.

Work will take place from 7:30 AM to 4:30 PM weekdays.  No work will take place on weekends.

Please contact Mark Voorhis if you experience any vibration-related issues.

Thank you for your understanding during this necessary construction effort.



Mark Voorhis                          John Weaver

Mark Voorhis                                                                      John R. Weaver
Building Manager                                                              Facility Manager
Birck Nanotechnology Center                                         Birck Nanotechnology Center
Purdue University                                                               Purdue University

(765) 494-3036                                                                    (765) 494-5494
mvoorhis at purdue.edu<mailto:mvoorhis at purdue.edu>                                                       jrweaver at purdue.edu






Date

Time

Vibration Activity

Thursday, April 22, 2010

7:30AM - 3:30PM

Saw cutting concrete

Friday, April 23, 2010

7:30AM - 3:30PM

Excavating cut concrete

Monday, April 26, 2010

7:30AM - 3:30PM

Excavating cut concrete & excavating dirt

Tuesday, April 27, 2010

7:30AM - 3:30PM

Excavating dirt & set forms, hammer drill existing concrete for rebar

Wednesday, April 28, 2010

7:30AM - 3:30PM

Pour & vibrate concrete




Future Work



Wednesday, May 26, 2010

7:30AM - 3:30PM

Crane operation to set building steel - using pneumatic impact wrenches

Thursday, May 27, 2010

7:30AM - 3:30PM

Crane operation to set building steel - using pneumatic impact wrenches

Friday, May 28, 2010

7:30AM - 3:30PM

Crane operation to set building steel - using pneumatic impact wrenches

Monday, May 31, 2010

7:30AM - 3:30PM

Crane operation to set building steel - using pneumatic impact wrenches

Tuesday, June 01, 2010

7:30AM - 3:30PM

Crane operation to set building steel - using pneumatic impact wrenches



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