摘要: |
For the layman, the problem with the Herbert Hoover Dike when the lake reaches high water levels can be summed up in two words: It leaks. When the lake is high, water finds its way through the dike from lakeside to landside sometimes eroding soil from within or beneath the dike. This erosion of soil is technically known as piping. The piping of the soil creates a continuous open path through which water can erode even more soil. If this soil erosion is allowed to continue, it will eventually create large cavities in the dike. And those large cavities with water from the lake running through them unimpeded create a serious risk that the dike will breach, with large releases of water from Lake Okeechobee flooding the surrounding lands. / Supplementary Notes: See also AD-A214 463. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |