Ludhiana’s Gill flyover wall collapse is rats’ handiwork , says probe
A report by probe team, headed by ADC Shena Aggarwal, says there was no discrepancy in material used to construct the flyoverUpdated: Jun 20, 2018 13:56 IST
A month after the retaining wall of Gill Flyover collapsed, an inquiry conducted into the incident has confirmed that it were rats which caused the collapse. The MC has been advised to not to let garbage accumulate below the flyover so as to avoid the menace of rats in the report.
- The garbage dumps near the bridges should be immediately shifted.
- The rat burrows around bridges should be located and immediate patchwork must be done
- Whenever the retaining wall panels are bulging out or have reverse slope, they should be strengthened by providing reinforcing steel stand anchoring.
- There should be a gap between the retaining wall at atop and approach slab and this should be provided by cutting the retaining wall panels at top and filling the gap with some compressible material so that direct impact of traffic load is not transferred to the panels.
It has been stated in the inquiry report that during inspection, it was observed that the reinforcing giogrid (geosynthetic material used to reinforce soil) was rat-eaten at many places and there were big holes in geogrid net. The retaining wall panels are held in position by the giogrid net but the giodrid itself lost its strength to hold wall panels. This led to the failure of the retaining wall. “So the committee is of the opinion that the cause of the failure of the retaining wall is weakening of reinforcing giogrid net by rats,” states the report.
The inquiry has been conducted by a committee comprising of Ludhiana addition deputy commissioner (development) Shena Aggarwal, MC executive engineer Rahul Gagneja, executive engineer (PWD) Rakesh Garg and GLADA executive engineer Ranbir Singh.
The inquiry report further states that no discrepancy has been found in the construction material, as was alleged by a section of politicians, including member of parliament Ravneet Singh Bittu and MLA Simarjeet Singh Bains. They had alleged that the contract to construct Gill Road Flyover was allotted ignoring the technical inability of the contractor in 2008 and even after the matter was raised in the general house meeting of municipal corporation (MC), the MC officials in connivance with the contractor Deepak Builders had allotted the contract.
“No such discrepancy in the material used to construct the flyover has come to light and the inquiry has found that it were the rats that caused the collapse,” said Ludhiana DC Pradeep Kumar Agrawal.
The retaining wall of the retaining wall of Gill road flyover (part of link road) collapsed on the night of May 15. Luckily, there were no casualties in the incident.
Samples of earth from behind the earth retaining wall were collected and sent to the consultancy cell of Guru Nanak Dev Engineering College. The report stated that soil sample was found to be suitable for use as reinforcing earth behind Reinforced Earth (RE) wall.
First Published: Jun 19, 2018 13:38 IST