gmda: wires? Gas lines? New device to help Gmda see what’s underground and plan infrastructure projects | Gurgaon News

ByLance T. Lee

Apr 3, 2022
Gurgaon: It will soon become easier to map underground utilities like pipes, cables and gas lines as GMDA plans to procure Ground Penetrating Radar (GPR) by July this year. The machine will help the authority to track underground objects and, accordingly, to plan projects in the city.
According to officials, the tender for the GPR machine had been issued in February this year, but due to poor response from bidders, it was issued again this month.
“The first time we launched the call for tenders, the number of offers we received was very low. We need to have minimum competition in order to award the job and so out of due diligence we have re-issued the tender,” said a senior GMDA official.
The official added that it could take about a month to procure the machine once the tender is awarded. Therefore, the authority expects to use the machine by July this year.
“The tender is open until April 21 and we hope to award it by May. Once the machine is acquired, it will take us around seven to ten days to train staff in its effective use. All combined , we hope to start using the device in the field by July this year,” the official added.
GPR machines use the principle of radio frequency to help track underground utilities such as metallic and non-metallic pipes, cables and gas lines, determining not only their exact location, but also the depth to which they run. find.
As the GMDA does not currently have such a system, this task is currently carried out by service providers mandated by the authority to carry out its projects. However, without any way to validate the information, it is impossible for the authority to determine if their conclusions are accurate. It also creates opportunities for mishaps during excavation, creating particularly dangerous situations if utilities such as high-pressure gas pipelines are involved.
In addition, the lack of accurate information in this regard also leads to delays in projects, with utilities unexpectedly uncovered during excavation, requiring relocation before work can continue. Several projects in the city have been delayed as a result of such discoveries, including renovations to Atul Kataria Chowk.
At the downtown Huda intersection, the GMDA had to abandon a plan to build a pedestrian bridge after the authority discovered underground power cables.
This issue was discussed at a meeting of the Central Planning Cell (CPC) of the GMDA in September last year.
Officials had said they would eventually use the machine to map underground utilities, with the data then made available to the public on the One Map portal. This, officials said, will help clarify which facilities are located in which area and will help all agencies plan development or infrastructure projects.

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