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Congested areas with narrow bypasses and centuries-old buildings – the Delhi Metro faces the same challenge this year as it did decades ago when it ventured into the heart of Old Delhi.
While establishing the fourth phase of its network, which will cover areas near Pul Bangash, DMRC has introduced a web-based real-time monitoring mechanism to monitor the condition of buildings during tunneling between Derawal Nagar and Pulbangash on Janakpuri West-RK Corridor Ashram Marg.
“These areas are very congested and there are countless buildings that are centuries old and some of them are not in very good condition. The DMRC will have to continuously monitor the condition of these structures once the tunneling works start next month,” the DMRC said in a statement.
Monitoring will be conducted from eight locations on the stretch, spread across the districts of Dherawal Nagar, Ghanta Ghar, Nabi Karim, Bulbangash and Sadar Bazar, where the devices are being conducted.
The DMRC said the equipment would transmit real-time data to the software.
All tunnel boring machines will be equipped with the Tunneling Tunneling Frontal Electrical Monitoring System, which enables the machine to act as a real-time probe to predict geological strata up to 20 meters ahead of the cutter head face of the machine and predict any unexpected encounters with filled wells, bores, and aquifers that may lead to to settling on the ground if struck by a TBM without proper handling, the DMRC statement said.
When tunneling works were carried out in areas in Old Delhi for yellow and violent lines, round-the-clock monitoring was also carried out but this time, real-time monitoring is provided.
“This will be possible by installing smart tools such as automatic total stations, vibration sensors, tilt counters, load cells, etc., which are able to capture and transmit 24 x 7 data in real time… As the tunnels begin to function, the behavior of said structures Above should be monitored in real time to take timely measures (as applicable) as the data should be available on dedicated software accessible through mobile/desktop for round the clock monitoring,” the statement added.
Under the fourth stage, a total of 65 kilometers have been added to the network, of which 28 kilometers will be underground.
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