Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/33184| Title: | Analysis of recent support-column survey results for the elevated facility at Amundsen-Scott South Pole Station |
| Authors: | Blaisdell, George L. Weale, Jason C. Barna, Lynette A. |
| Keywords: | Amundsen Scott South Pole Station (Antarctica) Buildings EPOLAR Foundations--Cold weather conditions NSF Settlement Snow mechanics Snowpack Snow measurement |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Special Report (Engineer Research and Development Center (U.S.)); no. ERDC/CRREL SR-19-3 |
| Abstract: | The snow-based foundation for the large elevated Station at Amundsen-Scott South Pole Station is continuously migrating (creep) away from the load imparted by structure’s support columns and grade beams. Because of nonhomogeneities in the snow foundation, differential loads on each support column, and the facility’s approximately 10-year build-out and progressive-occupancy period, nonuniform settlement of columns is occurring. The created differences in the tops of the columns, where the Station’s floor is attached, can cause serious structural damage and interfere with utilities. Following up on our previous (2006) review of the history of column settlement, this report incorporates essential ancillary measurements and assesses actual Station floor levelness. We determine that past actions to mitigate differential column settlement by shimming at column tops has and continues to be adequate to maintain an acceptable floor levelness. Further, we present a model for predicting future measures of floor levelness that can help facilitate decisions about when and what columns to shim to best preserve resources. |
| Description: | Special Report |
| Gov't Doc #: | ERDC/CRREL SR-19-3 |
| Rights: | Approved for Public Release; Distribution is Unlimited |
| URI: | https://hdl.handle.net/11681/33184 http://dx.doi.org/10.21079/11681/33184 |
| Size: | 42 pages / 2.230 Mb |
| Types of Materials: | PDF/A |
| Appears in Collections: | Special Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ERDC-CRREL SR-19-3.pdf | 2.28 MB | Adobe PDF |  View/Open |