长江崩岸应急治理方案研究及应用

摘要:

为了确保内河向长江泄洪通道的顺畅,入江口附近江堤崩岸治理是十分必要的。本文提出抛石与主动钩连体抛护江堤方案,总结江滩抛投工程特有的安全隐患注意事项。并结合抛投区域的复杂地理条件,重点分析抛投技术流程应用于长江(江苏段)崩岸治理工程中。根据现场抛投试验数据,提出块石与钩连体的水平漂距计算公式,得到工程段抛投体漂距为5.2~7.5m,进而可选用12m吊臂的起重机在5m宽、10m长的单元内进行抛投,经水下地形测试抛投效果良好,为类似工程提供参考。

Abstract:

In order to ensure the smooth channel of the inland river to the Yangtze River, it is necessary to treat the embankment collapse near the mouth of the river.SThis paper puts forward a plan of protecting river dike with riprap and active hook.SCombined with the complex geographical conditions of the dumping area, the paper focuses on the analysis of the application of the dumping technology process in the Yangtze River (Jiangsu section) bank collapse control project.SAccording to the field test data, the calculation formula of horizontal drift distance between block rock and hook is put forward, and the drift distance of the project section is 5.2~7.5m. Furthermore, a crane with 12m boom can be used to carry out the throw in 5m wide and 10m long units. The result of the underwater terrain test is good, which provides reference for similar projects.