Reevaluation and Reconstruction of California Dams
Reevaluation and Reconstruction of California Dams
复制标题
加州水坝的重新评估和重建
DOI：
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发表时间：
1970
期刊：
影响因子：
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通讯作者：
Clifford J. Cortright
中科院分区：
文献类型：
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作者：
Clifford J. Cortright
一个适当的大坝安全计划必须包括重新评估现有大坝的性能和水文记录积累，并作为工程专业的进步，在其知识和理解的真实行动的结构负载。加州州自1929年以来一直实施大坝安全法。由于人口的大量增长和大坝数量的增加，大坝的危险增加了近十倍，国家的大坝安全计划最近得到了加强。正在重新检查较老的水坝是否有足够的泄洪能力以及安全应力和稳定系数。目前，加州近1,100座大坝中有90座已被确定为值得进行结构设计重新评估。对80座大坝的溢洪道容量进行了重新评估。其中许多水坝的重建计划和工作正处于不同的进展阶段，其余水坝的重新评估工作正在进行中。简要描述了几个病例的历史和紧急纠正措施。
An adequate dam safety program must include reevaluation of existing dams as performance and hydrologic records accumulate and as the engineering profession advances in its knowledge and understanding of the true action of structures under load. The State of California has administered a dam safety law since 1929. Because dam hazards have increased nearly tenfold due to great population growth and increased numbers of dams, the State's dam safety program was intensified recently. Older dams are being reexamined for adequate spillway capacities and safe stress and stability factors. Presently, 90 of the nearly 1,100 dams in California have been identified as meriting a structural design reevaluation. Spillway capacity reevaluation has been found advisable for 80 dams. Plans and work for reconstruction are in various stages of progress for many of these dams and reevaluation is under way on the remainder. Sever case histories and the emergent corrective actions are briefly described.