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https://hdl.handle.net/11681/31365Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Burnham, Benjamin C. | - |
| dc.contributor.author | Thomas, Marshall P. | - |
| dc.contributor.author | Vaughan, Jane M. | - |
| dc.date.accessioned | 2019-01-15T20:50:41Z | - |
| dc.date.available | 2019-01-15T20:50:41Z | - |
| dc.date.issued | 2018-12 | - |
| dc.identifier.govdoc | ERDC/CHL TR-18-18 | - |
| dc.identifier.uri | http://hdl.handle.net/11681/31365 | - |
| dc.identifier.uri | http://dx.doi.org/10.21079/11681/31365 | - |
| dc.description | Technical Report | - |
| dc.description.abstract | Concrete degradation issues due to riprap entrainment have been observed in the stilling basin at Foster Joseph Sayers Dam. This entrapment occurs during normal flows. The original stilling basin has experienced excessive degradation, and repairs to restore it to original specifications are needed. A physical model study has been performed to determine the flow characteristics of the stilling basin and to develop a design modification to minimize riprap entrapment. The riprap originates in an area that could be replaced with a concrete pad to prevent further riprap entrainment in the stilling basin. A final stilling basin design modification recommendation is provided. | en_US |
| dc.description.sponsorship | United States. Army. Corps of Engineers. Baltimore District. | en_US |
| dc.description.tableofcontents | Abstract .......................................................................................................................................................... ii List of Figures and Tables............................................................................................................................. v Preface ...........................................................................................................................................................vii Unit Conversion Factors ........................................................................................................................... viii 1 Introduction ............................................................................................................................................ 1 1.1 Background .................................................................................................................... 2 1.2 Objective ........................................................................................................................ 3 1.3 Approach ........................................................................................................................ 3 2 Model Description and Modeling Process ....................................................................................... 4 2.1 Foster Joseph Sayers Dam model scale relations ....................................................... 8 2.2 Model description .......................................................................................................... 8 2.2.1 Model description and construction .......................................................................... 8 2.2.2 Elevation markers, point gages, and instrumentation .............................................. 9 3 Model Results ......................................................................................................................................13 3.1 Tests with a fixed bed exit channel ............................................................................. 13 3.1.1 Field discharge tests ................................................................................................. 13 3.1.2 Physical model field discharge test observations ................................................... 15 3.1.3 Summer and winter pool elevation tests observations........................................... 16 3.1.4 Upper approach channel riprap observations ......................................................... 17 3.2 Sayers outlet works riprap design .............................................................................. 18 3.2.1 Upstream riprap protection ...................................................................................... 18 3.2.2 Downstream riprap protection ................................................................................. 19 3.2.3 Riprap for 18 in. thickness ....................................................................................... 19 3.2.4 Riprap for 24 in. thickness ....................................................................................... 19 3.2.5 Riprap for 36 in. blanket thickness .......................................................................... 19 3.2.6 Riprap gradation ....................................................................................................... 20 3.3 Tests with a movable bed exit channel ...................................................................... 22 3.4 Stilling basin modifications ......................................................................................... 30 3.4.1 High-sloping fillet added to basin ............................................................................. 30 3.4.2 Low-sloping fillet added to basin .............................................................................. 31 3.4.3 Inverted V added to parabolic drop .......................................................................... 35 3.4.4 Baffle blocks removed in stilling basin .................................................................... 41 4 Summary and Recommendations ................................................................................................... 43 4.1 Summary of physical model study .............................................................................. 43 4.2 Recommendation ........................................................................................................ 47 References ................................................................................................................................................... 49 Appendix: Testing Notes ............................................................................................................................ 50 Report Documentation Page | - |
| dc.format.extent | 104 pages / 12.02 Mb | - |
| dc.format.medium | PDF/A | - |
| dc.language.iso | en_US | en_US |
| dc.publisher | Coastal and Hydraulics Laboratory (U.S.) | en_US |
| dc.publisher | Engineer Research and Development Center (U.S.) | en_US |
| dc.relation.ispartofseries | Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-18-18 | - |
| dc.rights | Approved for Public Release; Distribution is Unlimited | - |
| dc.source | This Digital Resource was created in Microsoft Word and Adobe Acrobat | - |
| dc.subject | Concrete--Deterioration | en_US |
| dc.subject | Foster Joseph Sayers Dam (Pa.) | en_US |
| dc.subject | Hydraulic models | en_US |
| dc.subject | Hydraulic structure | en_US |
| dc.subject | Stilling basin | en_US |
| dc.title | Physical model analysis of the Foster Joseph Sayers Dam | en_US |
| dc.type | Report | en_US |
| Appears in Collections: | Technical Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ERDC-CHL TR-18-18.pdf | 12.32 MB | Adobe PDF |  View/Open |