Sunday, October 13, 2013

CAPpings- India - Water Pipeline Leakage - Another pipe burst; supply disrupted in Thiruvananthapuram - Corrosion is identified as the major cause

The bursts on the 1,200-mm transmission main have been a regular feature, with the 15-year-old pipeline being weak and corroded at several points. Work on a Rs.50 crore-project to replace the pipeline, from Aruvikkara to Peroorkada with mild steel pipes, is dragging on. Officials said it would take at least another month to complete the project.

Another pipe burst; supply disrupted in Thiruvananthapuram

The pre-stressed concrete (PSC) transmission mainline carrying water from Aruvikkara to the Observatory Hills tank, known for numerous bursts in the recent past, lived up to its notorious record with a major burst on Tuesday.

The burst, noticed around 4 p.m. near the Karakulam bridge on the Thiruvananthapuram-Shencottah road, is likely to disrupt water supply at several places in the heart of the city and towards the western parts till Wednesday evening.

Kerala Water Authority (KWA) officials said the burst occurred in a portion of the 1,200-mm mainline that narrowed down to 1,000 mm at the particular point. Excavation work was on to remove the mud over the pipeline and ascertain how big the leak or burst was. This would take several hours. A mild steel pipe piece would have to be lowered into the trench and welded on to the existing pipe at both ends to replace the affected portion. Repairs would take up to 24 hours. Normal water supply to the affected areas was likely to be restored only towards Wednesday evening, they said.


The bursts on the 1,200-mm transmission main have been a regular feature, with the 15-year-old pipeline being weak and corroded at several points. Work on a Rs.50 crore-project to replace the pipeline, from Aruvikkara to Peroorkada with mild steel pipes, is dragging on. Officials said it would take at least another month to complete the project.

Article Source: http://www.thehindu.com/news/cities/Thiruvananthapuram/another-pipe-burst-supply-disrupted-in-thiruvananthapuram/article5216651.ece
Publication Date: 09 October 2013

2 comments:

  1. It is disturbing to notice the observation that leakage is a regular feature in this 15-year old pipeline. Our water resources are getting diminished day by day. We have to take strict measures in safegaurding the water distribution system. Zero leak policy should be enforced by the government authorities. There is no proper regulation in our country to conserve water from the present resources. Our present approach is not to bother on leakage, but exploring new water bodies to meet the demand.

    There are many instances of corrosion induced water pipeline leakages in our country. Water management authorities should follow a proper design to select the economical system and operate the distribution in an efficient way. Proper Material selection is often ignored in the present design systems. The resultant effect is not only the leakage, but also leading to health impacts on public who consumes this contaminated water.Government should encourage corrosion awareness for water distribution.

    ReplyDelete
  2. Frequent leakages in 15 year old pipeline show the negligence attitude of water management authorities. They don't perform the life cycle cost analysis to choose the right materials of construction. Replacement of failed portion with another material may provide intermittent solution, not the long term answer for leakages, if there is no proper material selection approach followed for the present case. After some years we will have the same story of leakage. Our government research institutions should closely work with water management authorities to perform useful research on finding appropriate solutions for failures in public water distribution systems. They focus on producing fundamental research works that carry Impact Factor for their publications in Journals. They should be open for collaboration with various resources to resolve the most serious corrosion concerns in our country.

    ReplyDelete