Cut and cover construction is used when the tunnel profile is shallow and the excavation from the surface is possible, economical, and acceptable. Cut and cover construction is used for underpasses, the approach sections to mined tunnels and for tunnels in flat terrain or where it is advantageous to construct the tunnel at a shallow depth.
Excavation of the tunnel is then carried out through openings in the tunnel roof top-down to the tunnel floor. The tunnel floor slab is the last part of construction to be completed. Cast-in-place Method . Another type of cut-and-cover tunneling is called cast-in-place.
Cut and Cover Method of Tunnel Construction Cut and cover method of tunnel construction is generally used to build shallow tunnels. In this method, a trench is cut in the soil and it is covered by some support which can be capable of bearing load on it.
Cut and cover tunnel design involves the consideration of many parameters. Cut-and-cover is a simple method of construction for shallow tunnels where a section is first is excavated and then covered over with an overhead support system strong enough to carry the load of what is to be built above the tunnel.
Cut and cover construction is one of the methods that will be used to build the new Metro Tunnel stations. As the name suggests, cut and cover construction involves using excavation equipment to dig a large trench or rectangular hole in the ground which is then covered by a concrete deck.
Cut and Cover Tunnelling Cut and cover is the oldest method of tunnelling: the basic concept involves the digging of a trench, the construction of a tunnel, and then returning the surface to its original state.
Cut-and-cover is the oldest method of tunneling. The basic concept involves the digging of a trench, the construction of a tunnel, and then returning the surface to its original state. As such, it is a disruptive technique, but it is also usually the most economical construction method.
Cut-and-Cover Method The cut and cover method is a simple method of construction for shallow tunnels where a trench is excavated and roofed over with an overhead support system. This system is strong enough to carry the load of what is to be built above the tunnel.