Konkan Railway Old Year papers hindi paper Current Affairs | 56803

 

Konkan Railway Old Year papers hindi paper Current Affairs:

There were challenges posed by the terrain and the elements. Flash floods, landslides and tunnel collapses affected work at many places on the project. The region was also thickly forested, and construction sites were often plagued by wild animals. Despite these problems, work on the project continued, and an effective system of decentralisation enabled better efficiency. The entire stretch of 740 kilometres (460 mi) was divided into seven sectors - Mahad, Ratnagiri, Kudal, Panaji, Karwar, Udupi - of approximately 100 km each, headed by a Chief Engineer.

Contracts for the project were awarded to some of the biggest and most reputed construction firms in India, including Larsen & Toubro, Gammon India and AFCONS. To enable quicker construction, several innovative practices were adopted. Piers for major bridges were cast on the riverbanks itself and launched using cranes mounted on pontoons.The technique of incremental launching of bridge spans was used for the first time in India. Since it would take too long to complete the project using locally available tunnelling technology, nine hydraulic tunnelling machines were imported from Swedenin order to bore through the hard rock of the Sahayadris.

The biggest challenge, however, came from the nine tunnels that had to be bored through soft soil. No technology existed anywhere in the world for this purpose and the work had to be carried out through a painstakingly slow manual process. Excavation was almost impossible due to the clayey soil that was saturated with water owing to a high water table in the region. Several times tunnels collapsed immediately after they had been dug, necessitating work to be redone.Nineteen lives and four years were lost while constructing the soft soil tunnels alone.In all, seventy-four people perished during the construction of the line.

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