Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for underground excavation










Image Number 2 for United States Patent #5678957.

A method for underground excavation below an area, without opening the area above the excavation, the method comprising constructing at least a pair of diaphragm walls, the walls being at two opposite sides of the area and extend substantially from the surface area to beneath the lowest level of the excavation. Either prior or after constructing the walls, a plurality of tunnels are bored under the surface area, with the tunnels extending from one diaphragm wall of a pair to another and having a diameter allowing them to accommodate one or more cables. Then, the one or more cables are inserted through the tunnels, and tensioned with their ends anchored to two diaphragm walls of a pair and excavating is performed between said diaphragm walls and beneath the cables.








 
 
  Recently Added Patents
Semiconductor device
Moulded tie strips
Systems and methods for cryopreservation of cells
Resistive memory element sensing using averaging
System and method for dynamic quality-of-service-based billing in a peer-to-peer network
Generation of uniform fragments of nucleic acids using patterned substrates
Stereoscopic editing for video production, post-production and display adaptation
  Randomly Featured Patents
Method for measuring material permeability characteristics
Indirect current monitoring via voltage and impedance monitoring
Navigation apparatus for a vehicle and a recording medium for use in the same
Silicon containing polymer and chemically amplified resist composition comprising the same
Insulating panel
Apparatus for recording CRT image
Photoreceptor overcoated with a polysiloxane
Dynamically controlled digital audio signal processor
Heartbeat monitor for wearing during exercise
Diaphragm-holding synthetic resin assembly