Main types of Tunneling methods -
The three main types of tunneling are Let’s take a look at each briefly… Cut and cover method: This is a frequently used method when the required tunnel excavation is not very deep (i.e. up to around 80 feet or so). The method involves excavating a trench in the ground, and not boring the tunnel underground. At what stage this excavation is performed with respect to the tunnel construction makes a difference. Because of this, cut and cover method can be grouped into two as, bottom up method and top down method. The bottom-up method is the straightforward one. First the retaining walls are inserted into the ground, that will […] Read More
