论文部分内容阅读
在水利工程修建时,有些工程项目由于河床的水流及水位变化,加之水漫河床无法施工,为了能在河床中施工就需要在河床上建立干地,在基坑作业面周围需要建立围堰。施工导流的方法有全段围堰法导流和分段围堰法导流。实际工程中,导流方法不但影响导流工程的规模和造价,且与枢纽布置、主体工程施工部署、施工工期密切相关,有时还受施工条件及施工技术水平的制约。文章介绍了施工导流和使用原则,分段围堰法导流在沱河治理中的应用。
In the construction of water conservancy projects, some projects due to changes in water flow and water level in the riverbed, combined with the inability to construct the floodplain, require the establishment of dry land in the riverbed to be constructed in the riverbed and the construction of cofferdams around the pitwork. The method of construction diversion includes the whole section of cofferdam diversion and sectional cofferdam diversion. In practical engineering, the diversion method not only affects the scale and cost of the diversion project, but also is closely related to the layout of the hub, the construction and deployment of the main project, the construction period, and sometimes also the construction conditions and the technical level of construction. The article introduces the principle of construction diversion and use, and the application of sectional cofferdam diversion in the treatment of Hutuo River.