Formation of holes in pipelines, Civil Engineering


While branch pipelines are connected to pipelines, now and then Y-junctions or fitting branched pipelines to key pipelines by formation of holes in pipelines are used. Which one would be better option?


Using standard precast units of Y-junction branch pipelines, it is away from doubt that joints between branched pipelines and pipelines are properly formed and quality of joints is relatively a lesser amount of dependent on workmanship. Though, it suffers from problem that with fixed precast units of Y-junctions, occasionally it might be difficult for contractors to determine precise orientation of specific angles of Y-junctions with respect to gullies.

By forming elliptical holes in pipelines and fitting side branches into them with cement mortar, quality of pipe joints is highly dependent on workmanship. It is usually found that in subsequent CCTV inspections side branches are planned inside main pipes. This is disagreeable as projected side branches decrease cross sectional area of pipes locally and influence their hydraulic presentation. Furthermore, projected side pipes could trap rubbish and dirt in vicinity. On other hand, cement mortar could not be properly applied at link joints because these areas are hidden from vision and are not easy to be inspected by engineers. Consequently, in selecting between two available processes, engineers must create their own judgments based on above considerations.


Posted Date: 12/7/2013 5:28:32 AM | Location : United States

Related Discussions:- Formation of holes in pipelines, Assignment Help, Ask Question on Formation of holes in pipelines, Get Answer, Expert's Help, Formation of holes in pipelines Discussions

Write discussion on Formation of holes in pipelines
Your posts are moderated
Related Questions
Materials that provide a path to the magnetic flux are? Answer: These are magnetic materials

description of instruments used transfer upper floors *plumb-bob method *theodolite method *theodolite and target method *optical plumbing method

tack rivet figures with connections

Q. What is Switch and Expansion Joint? Switch Expansion, Joint (SEJ) is an expansion joint installed at each end of LWR/CWR to permit expansion/contraction of the adjoining bre

what will be the w/c ration and cement/fly ash ration for the particular mix design

Define the Marine Growth - Underwater inspection of bridges? Bridges on many inland waterways are relatively clean and free of marine growth. However, there is likelihood of ma

what is snowcem?

radial line method practical

Asolid circular shaft of 25 cm diameter is to be replaced by a hollow shaft .The ratio of external to internal diameters being 2to1.Find the size of the hollow shaft if the maximum