• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Collaborative management of integrated watersheds >SCOGGINS DAM - SEISMIC PERFORMANCE AND REMEDIATION ALTERNATIVES
【24h】

SCOGGINS DAM - SEISMIC PERFORMANCE AND REMEDIATION ALTERNATIVES

机译：SCOGGINS DAM-抗震性能和补救措施

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Scoggins Dam is a 151 -foot-high, zoned earthfill embankment constructed by the U.S. Bureau of Reclamation (Reclamation). The facility is located 25 miles west of Portland, Oregon, and is operated and maintained by the Tualatin Valley Irrigation District. Clean Water Services, on behalf of the Tualatin Basin Water Supply Project Partnership (Partners), retained a Kleinfelder design team (Kleinfelder Team), which includes Kleinfelder, AMEC Geomatrix, and BasePoint Design, to evaluate conceptual design alternatives and develop conceptual level designs and construction costs to assist in evaluating the potential for increasing the reservoir storage capacity while addressing anticipated earthquake loads.rnReclamation's ongoing evaluations of Scoggins Dam include an updated seismic hazards analysis. This hazard includes the Cascadia Subduction Zone megathrust event, a potential magnitude 9 earthquake. The Partnership, in conjunction with Reclamation, convened a Seismic Hazard Review Board (Board) to review the technical data and methodologies for characterizing the seismic hazards at Scoggins Dam. Based on the Board's initial recommendations, two scenario earthquakes were used to develop conceptual alternatives, a M6.8 earthquake on the Gales Creek fault and a M9.0 earthquake on the Cascadia Subduction Zone megathrustrnCan a 200-foot-high embankment dam be designed to withstand a M9 earthquake? The Kleinfelder Team evaluated alternatives for raising the reservoir water surface 40 feet under these severe seismic loading conditions. Initial indications of embankment deformations were estimated using calculated yield accelerations and the simplified Makdisi-Seed method. More complex failure modes were evaluated using the computer program FLAC. Because of the urgency of the water supply needs, and the anticipated schedule for permitting, design and construction of the project, the Partners are developing design concepts ahead of Reclamation's evaluation of the existing dam and the earthquake design criteria and alternatives presented have not been endorsed by Reclamation.
机译：Scoggins大坝是151英尺高的分区填土路堤，由美国开垦局（Reclamation）建造。该设施位于俄勒冈州波特兰市以西25英里处，由图拉丁河谷灌溉区负责运营和维护。 Clean Water Services代表Tualatin盆地供水项目合作伙伴（合作伙伴）保留了一个Kleinfelder设计团队（Kleinfelder团队），其中包括Kleinfelder，AMEC Geomatrix和BasePoint Design，以评估概念设计替代方案并开发概念级设计，以及建造成本，以帮助评估在解决预期地震载荷的同时增加水库存储容量的潜力。rnReclamation对Scoggins大坝的持续评估包括最新的地震灾害分析。此危害包括卡斯卡迪亚俯冲带特大推力事件，可能发生9级地震。该伙伴关系与填海联合起来，召集了地震危险性审查委员会（委员会），以审查表征Scoggins大坝地震危险的技术数据和方法。根据委员会的初步建议，使用了两种情景地震来开发概念方案，分别是Gales Creek断层的M6.8地震和卡斯卡迪亚俯冲带巨型推力的M9.0地震。可以设计出200英尺高的堤坝吗？承受M9地震？ Kleinfelder团队评估了在这些严重地震载荷条件下将水库水面升高40英尺的替代方案。路堤变形的初步迹象是使用计算出的屈服加速度和简化的Makdisi-Seed方法估算的。使用计算机程序FLAC评估了更复杂的故障模式。由于供水需求的紧迫性以及项目的许可，设计和施工的预期时间表，合作伙伴在Reclamation对现有大坝进行评估之前制定了设计概念，并且地震设计标准和提出的替代方案尚未得到认可通过开垦。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号