摘要
大型预应力钢筒混凝土管道(PCCP)接口,在施工和运行过程中难免会出现不同程度的损坏,接口的维修处理对PCCP管道运行效果起着至关重要的作用。文中介绍了南水北调中线京石段应急供水工程(北京段)PCCP管道接口处理维修实践,该段PCCP管道内径为4 000 mm,对其在打压试验中不合格的管道接口给出了三种具体的处理措施。
During the constructing and operating period of large-sized PCCP,it is very hard to fully avoid the harm of its joint in different degrees.So that to maintance pipe joint may play a very important role for the operation effect of the pipe.The paper expounds the practice to treat and maintance PCCP's joint for the emergency water supply pro-ject in Jing-she section of the South-to-north Water Transfer Project.Its PCCP's inside diameter is 4m.For the un- qualified joints of PCCP in pressure test,three treatment methods are put forward in this paper.
出处
《山西水利科技》
2012年第3期16-17,共2页
Shanxi Hydrotechnics
关键词
南水北调工程
PCCP
接口
处理
措施
South-to-north Water Transfer Project
PCCP
joint
treatment
measure