UTE DAM SEISMIC STABILITY EVALUATION

摘要

Ute Dam is a zoned embankment dam on the Canadian River in Quay County, New Mexico, in the northeastern portion of the state. Appurtenant structures include a spillway and an outlet works. At full capacity, the facility is capable of impounding up to 272,000 acre-feet of water with a surface area of 8,200 acres. The facility is owned and operated by the New Mexico Interstate Stream Commission (NMISC). The paper reports the results of a state-of-the-practice seismic stability evaluation for Ute Dam and its appurtenances. The evaluation included a) a detailed review of available information, b) a probabilistic seismic hazard evaluation (ground motion evaluation), c) field and laboratory investigations of foundation soils, and d) seismic stability analyses of the dam and its appurtenant structures. The study resulted in conclusions that the dam and its appurtenances satisfy New Mexico dam safety standards for seismic stability.