Downstream Impacts on Geostructures of the Michigan Dam Failures
Downstream Impacts on Geostructures of the Michigan Dam Failures
复制标题
密歇根大坝溃决对下游地质结构的影响
DOI：
10.1061/9780784484036.039
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Nichols, E.
中科院分区：
文献类型：
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作者：
Nichols, E.
2020年5月19日，伊登维尔大坝决口和桑福德大坝溢流一直是重大岩土调查的重点，而对记录由此对公路堤坝、桥梁和大坝下游房屋造成的破坏的科学关注要少得多。岩土极端事件侦察协会部署了一个小队，在事件发生后进行实地勘察，目的是对伊登维尔和桑福德大坝下游的地质结构造成的影响进行初步观察。破坏集中在桑福德市，而在桑福德下游的米德兰市，洪水没有达到对桥梁或财产造成重大破坏的高度。Geer团队的观察表明，桥梁桥台、土质结构中的掩埋设施以及大坝和其他高风险洪泛区下游的木结构建筑需要在设计时额外考虑，以提高在极端事件中的弹性。
The breaching of the Edenville Dam and overtopping of the Sanford Dam on May 19, 2020, have been the focus of significant geotechnical investigation, while considerably less scientific focus has been directed towards documenting the resulting damage to highway embankments, bridges, and homes downstream of the dams. The Geotechnical Extreme Events Reconnaissance Association deployed a small team to conduct field reconnaissance after the event with the goal of making preliminary observations of impacts to geostructures downstream of the Edenville and Sanford Dams. Damage was concentrated in the city of Sanford while in the city of Midland, downstream of Sanford, flood waters did not reach heights that caused significant damage to bridges or property. The observations made by the GEER team suggest that bridge abutments, buried utilities in earthen structures, and timber-framed buildings downstream of dams and other high-risk flood zones warrant additional considerations during design to increase resilience during extreme events.