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浅析给水球墨铸铁管的安装要点

作者: -1    发布时间: 2018-07-19    次浏览
1、给水球墨铸铁管沟槽开挖
1. Feed water ductile iron pipe trench excavation

给水球墨铸铁管沟槽底宽应按下式计:B=D1+2(b1+b2)
The bottom width of feed ductile iron pipe groove should be calculated as follows: B=D1+2(b1+b2)

式中:B—管道沟槽底部的开挖宽度(mm)D1—管道结构的外缘宽度(mm)b1—管道一侧的工作面宽度(mm)b2—管道一侧的支撑宽度(mm)
Where, B -- excavation width (mm) at the bottom of the pipe groove D1 -- width of the outer edge of the pipe structure (mm) b1-width of the working face on one side of the pipe (mm)b2 -- support width on the side of the pipe (mm)

2、给水球墨铸铁管沟槽支撑
2. Feed ductile iron pipe groove support

根据沟槽土质、地下水、开槽断面、荷载条件等因素进行设计,要求牢固可靠,防止塌方、支撑不得妨碍下管和稳管。
Design according to the factors such as soil quality, groundwater, groove section and load conditions of the trench, which requires to be firm and reliable, and prevent the collapse and support from obstructing the lower pipe and the stable pipe.


给水球墨铸铁管


3、T型接口管道在垂直或水平方向转弯处应设支墩。应根据管径、转角、工作压力等因素经计算确定支墩尺寸
3. The t-type interface pipe shall be provided with a pier at the turning in vertical or horizontal direction. The size of abutment pier should be determined by calculation according to pipe diameter, turning Angle, working pressure and other factors

4、输送生活饮用水时,管道不应穿过毒物污染区,如必须穿过时应采取防护措施。
4. When delivering drinking water, the pipeline shall not pass through the toxic pollution area, and protective measures shall be taken if necessary.

5、凡承插连接的球墨铸铁管线,必须经计算设支墩,参见国家建筑标准设计图集03SS505《柔性接口给水管道支墩》。
5. For ductile iron pipeline with socket connection, the piers must be calculated and set up. Refer to the piers of flexible water supply pipeline with flexible interface in the national building standard design atlas 03SS505.

6、给水球墨铸铁管的外防腐蚀涂层应根据敷管地的土质情况来选择镀锌和环氧沥青涂层或更高要求的涂层。
The outer anticorrosive coating of ductile iron pipes for water supply shall select galvanized and epoxy asphalt coatings or coatings with higher requirements according to the soil quality of the pipe site.

7、给水球墨铸铁管管道安装完、试压合格后,宜用低氯离子水冲洗和0.03%高锰酸钾水溶液消毒。
After installing ducted ductile iron pipes and passing the test pressure, it is advisable to wash them with low chlorine ionic water and disinfect them with 0.03% potassium permanganate solution.