Author
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Temple, Darrel |
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Submitted to: Proceedings ASCE North American Water and Environment Congress
Publication Type: Proceedings Publication Acceptance Date: 6/22/1996 Publication Date: N/A Citation: N/A Interpretive Summary: No new research results are reported; interpretive summary not required. Technical Abstract: The USDA Natural Resources Conservation Service has recently released new software for the design and analysis of water resource structure sites. This software, SITES, is based on the previous Soil Conservation Service DAMS2 structure site analysis software, but contains new technology for the analysis of vegetated and non-vegetated earth (soil and rock) spillways. This new technology uses a three-phase approach to spillway analysis. The phases are: 1) the failure of the vegetal spillway lining, if present, 2) the surface erosion leading to the development of a vertical or near-vertical headcut, and 3) the deepening and upstream advance of the headcut with the potential of breaching the spillway. Each of these phases has different physical characteristics and is represented by different mathematical relations in the computer model incorporated into the SITES software. The input parameters required by these relations and their impact ton the predicted spillway performance are discussed briefly. |
