清淤技术在洱海流域年久失修渠道施工中的应用

Application of Dredging Technology in Dilapidated Canal Construction at Erhai Drainage Basin

结合云南省大理市某渠道工程为例,提出一种清淤工艺应用于高原湖泊流域年久失修情况下的复杂双舱长距离渠道,将渠道内淤泥清除出管,增大了干渠的过水断面面积,降低了雨水舱污染物浓度,极大程度上解决了雨水、污水混流,下游水质较差的现象。可为相似工程提供一定参考。

Taking a canal project in Dali City of Yunnan Province as an example,this paper proposes a dredging technique applied to the complex double-cabin long-distance canal which is dilapidated at the plateau lake basin.The sludge in the canal is removed from the canal,which increases the flow cross-sectional area of the main canal,reduces the concentration of pollutants in the rainwater tank,and solves the phenomenon of mixed flow of rainwater and sewage,as well as poor downstream water quality to a great extent.It can provide some reference for similar projects.