Method for removal of broken ground
OwnerKarl Schlechtinventor
Life of this patent
Estimating the term…
Abstract
In order to avoid the time-consuming transport by road or rail vehicles, in many cases, overburden is pumped to the outside of a tunnel under construction, where it is dumped onto dump-hills. In order to avoid such dump-hills as well as extended transport distances, according to the invention it is disclosed that the overburden is transported, dumped or stored, via channels drilled into the wall of the tunnel, inside of the mountain surrounding the tunnel, and also to transport the overburden, in case of a tunnel to be constructed under a waterway, by means of a pipe into the waterway or to the surface of the waterway.
Claims13
A method for the disposal of broken ground in the construction of tunnels comprising
- excavating a tunnel and thereby generating broken ground;
- constructing at least one channel penetrating a tunnel wall in a substantially radial direction and extending to an area under the earth's surface;
- and
- pumping generated broken ground under pressure for transporting the broken ground through said channel.
A method for the disposal of broken ground in the construction of tunnels comprising
- excavating a tunnel and thereby generating broken ground;
- constructing a channel penetrating a tunnel wall in a substantially radial direction into an earth region close to the tunnel;
- pumping generated broken ground under pressure for transporting the broken ground through said channel;
- transporting the broken ground into a dry rock region located under the earth's surface.
A method for the disposal of broken ground in the construction of tunnels comprising
- excavating a tunnel and thereby generating broken ground;
- pumping generated broken ground under pressure through at least one channel penetrating substantially in a radial direction the tunnel wall into a region close to the tunnel located under the earth's surface.
A method for the disposal of broken ground in the construction of tunnels comprising
- excavating a tunnel and thereby generating broken ground and constructing a tunnel wall;
- drilling at least one bore radially penetrating the preconstructed tunnel wall;
- drilling at least one channel into an area under the earth's surface close to the tunnel, which channel is destined for a transport of the broken ground, from the tunnel into the surrounding rock formation region in a substantially horizontal direction;
- pumping an aqueous liquid with a pressure exceeding the earth's pressure into a dry rock region located under the earth's surface under exertion of deformation and displacement work;
- hauling the broken ground subsequently into the same area by pumping generated broken ground under pressure for transporting the broken ground through said tunnel wall bore and said channel;
- exerting a pressure on the broken ground to be transported corresponding to at least the earth's pressure at the exit location of the channel;
- pushing the broken ground into the rock formation region below the earth's surface under exertion of deformation and/or displacement work;
- and
- forming the pocket in the underground under the effect of the pressure of the broken ground;
- and
- filling said pocket then with the broken ground;
- permanently closing and sealing said channel and said tunnel wall bore after termination of broken ground disposal.
Dependencies are inferred from the claim text.