8 hours ago
Metro stops work after VIP Rd residents' waterlogging plea
Kolkata: Orange Line work near Haldiram flyover on VIP Road was stalled after residents of a high-rise next to the metro alignment complained that their water supply system was damaged following subsidence due to piling or foundation work, which requires deep digging.
RVNL has engaged JU experts to conduct a health audit.
Residents of Anupama Housing Society on VIP Road said they requested RVNL, which is implementing the New Garia-Airport Line, to stop work after noticing some ground settlement that seemed to have damaged the concrete underground reservoir and connecting pipeline a few days ago. "The ground settlement can be spotted along a stretch at our housing complex. The concrete paving has given way, leading to a 4-inch gap.
We asked RVNL to appoint a third-party of experts to address it," said a resident.
"When the centrifugal pump and connecting pipelines were damaged, we called in local technicians to temporarily restore the system. But we need a permanent solution," said another resident. A section of the metro viaduct (on which tracks are laid) grazes the housing complex. Residents have been flagging safety concerns over the last few years — the one relating to piling work for construction of Pier 822L being the most recent.
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"Piling work involves creating a deep foundation system by driving or boring structural elements (piles) into the ground. The piles transfer the load of a structure to more stable soil or rock layers, particularly when the upper soil is weak," an engineer said.
An official of Metro Railway said, "As desired by residents of Anupama Housing Complex, JU experts have initiated an assessment of the blocks. The only subsidence we are aware of is the one that was caused by heavy rain sometime back, and the housing society's boundary wall was damaged.
At that time, work on a pile cap was on next to it. As a precautionary measure, steel casings have been installed around each pile near the housing society.
" A pile cap is a reinforced concrete structure that sits on top of a group of piles. Its primary function is to distribute load from superstructure evenly across piles, ensuring they work together. The official said RVNL built another pile, 3.6m away from the one near Haldiram flyover.
