Abstract
This will be the construction of making the two-lane highway road of the tunnel wider, which have been built for 32 years. They will demolish the existing one by the 3.8t large-sized breaker and will reconstruct to make it two-lane highwayroad of the tunnel in the current way. Before excavation, they will have grouting to reinforce the weak rock around the tunnel. And also they are going to recycle all the industrial wastes which they will produce a lot while reconstructing.