论文部分内容阅读
密执安州大瀑布坝局部溃决为工程和城市规划制定一项新的泥沙管理计划提供了机会 ,受到威胁的居民迁移到安全的地带 ,同时马斯基根河生态环境得到改善。大瀑布坝于 1912年施工 ,196 6年被部分拆除 ,当时一项失败的计划仅拆除了这座已有 5m高的建筑物的上部 4m。这样使大约 76
Local crashes at the Falls Falls dam in Michigan provide an opportunity to develop a new sediment management plan for engineering and urban planning. Threatened residents are relocated to safe areas and the ecology of the Muskegon River is improved. The Great Falls Dam was constructed in 1912 and partially demolished in 196 6 when a failed plan demolished only 4m of the upper part of the 5m tall building. This makes about 76