In Chamoli district of Uttarakhand, one after another incidents have been reported in the tunnel construction work related to hydropower projects, an atmosphere of concern has been created in the entire area. On the one hand, after the serious accident that took place on August 13 in the under-construction tunnel of THDC at Pipalkoti, the search and relief operation is going on for the missing workers.
On the other hand, on the morning of August 15, an incident of formation of cavity and leakage of water has come to light in the Chormi Edit Tunnel DBM site of the main tunnel of NTPC’s Tapovan Vishnugad Hydroelectric Project. Both these incidents have raised serious questions regarding security arrangements, geological study and safety of workers during tunnel construction.
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Many workers were trapped due to sudden entry of debris and water in the tail race tunnel of THDC’s Vishnugad-Pipalkoti project. Many people were pulled out in the rescue operation, but some died. Two workers are still missing. Rescue teams are busy draining water, removing debris and continuing the search. This accident already sensitive HimalayaThe challenges of tunnel construction in this area have once again been exposed.
Cavity and leakage incident in Tapovan Vishnugad Tunnel
A small hole was seen on the morning of August 15 in the Chormi Adit Tunnel DBM site of the main tunnel under construction of NTPC’s Tapovan Vishnugad Hydroelectric Project. Keeping safety in mind, the workers working in that area were immediately evacuated. After this, the work of safely filling and treating the cavity was started. Water is also leaking from this cavity inside the tunnel.
NTPC management says that formation of such small cavities during tunneling can be a normal part of the construction process. At present, no major danger is being reported from this. Nevertheless, in view of security, the entry of workers into the cavity area has been completely stopped.
A team of experts is deployed on the spot. With the help of modern machines, work is going on to fill the cavity and strengthen the affected area. The management has made it clear that until the cavity is completely treated, the tunneling work in that area will not be carried forward.
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Concern increased due to continuous incidents
The important thing is that just after the Pipalkoti Tunnel accident, incidents of cavity and water leakage have come to light in the Tapovan project. The causes and circumstances of both incidents may be different, but incidents related to two consecutive tunnel projects have emphasized the need for extra vigilance regarding the safety of workers and geological investigations.
The Himalayan region has complex structure of rocks, presence of water and monsoon Challenges like the impact of are already well known. In such a situation, regular geological monitoring, modern sensor technology and following strict safety protocols during construction becomes extremely important.
Experts believe that formation of cavity occurs occasionally in tunnel construction, but if not identified in time, it can become a big danger. In the Tapovan project, the management took the right step by immediately evacuating the workers, due to which a major accident could be avoided.
At the same time, challenges in the rescue operation in Pipalkoti accident continue due to water and debris. Demand for transparency and independent technical review is also being raised in both the cases.
These incidents are a reminder that hydropower projects are important for power generation, but the safety of workers’ lives must be paramount. There is a need for detailed geological survey, regular monitoring and strengthening of emergency plans before construction in a sensitive area like the Himalayas. Safety standards should also be strictly monitored at the state and central government levels.
overall Chamoli These two incidents have once again proved how challenging it is to maintain a balance between development and security. Both timely treatment of cavity in Tapovan Tunnel and successful search of missing workers in Pipalkoti are necessary.
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