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
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
Soybean cultivar CL1013665
Housekeeping cart
Direct converting apparatus, method for controlling the same, and control signal generation device
1,3-diiodohydantoin compound and production method thereof
Projector
Computer implemented apparatus for generating and filtering creative proposal
  Randomly Featured Patents
Chest exercise machine with self-aligning pivoting user support
Conveyor assembly support structure and high strength tubular beam therefor
Locking system for a flat bed trailer
Antenna unit using helical hinge spring
Compression-ignition type engine
Method for adapting a hearing device to a momentary acoustic situation and a hearing device system
Process for the purification and separation of perhaloalkanoic acids from mixtures thereof with perhaloalkanes
System and method for providing simulated hardware-in-the-loop testing of wireless communications networks
Low viscosity polyalphapolefin based on 1-decene and 1-dodecene
Cameras and video players having image projection capabilities