NSF award 2529731 · Purdue University

Seismic Performance of Tunnels in Rock

Final report due

28 January 2030

in 1,198 days · The award ends on 30 September 2029.

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award ending 2029-09-30 · Research.gov
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Extension request16 Aug 2029in 1033 days
award ending 2029-09-30 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice20 Sep 2029in 1068 days
award ending 2029-09-30 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due28 Jan 2030in 1198 days
award ending 2029-09-30 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due28 Jan 2030in 1198 days
award ending 2029-09-30 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out28 Jan 2030in 1198 days
award ending 2029-09-30 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 30 September 2029.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 28 January 2030.

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Award card

Award number: 2529731
Period of support: 1 Oct 2026 – 30 Sep 2029
Amount: $749,392
Awardee: Purdue University, West Lafayette, IN
Program: ECI-Engineering for Civil Infr
Directorate: ENG

Abstract

A significant number of tunnels in the US are excavated in rock. Many of these tunnels have suffered moderate to heavy damage during a strong earthquake, primarily due to a lack of robust seismic design principles when they were initially constructed. This award supports research to improve understanding of the interaction mechanisms between rock and tunnel support, identify the sources of damage and failure in…

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