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
Rechargeable battery
Print control server, print controlling method, and print control program
Imaging apparatus, control method thereof, and program
Method of optimizing air mover performance characteristics to minimize temperature variations in a computing system enclosure
Method and apparatus for efficiently inserting fills in an integrated circuit layout
Apparatus and method for manufacturing microneedles
Aqueous composition with agents to inhibit water evaporation
  Randomly Featured Patents
Method to form a recess free deep contact
LED bulb
Anti-infective injectable formulations
Deweaving apparatus with pneumatic defective pick release for shuttle-type loom
Process for fabricating three-dimensional polymer layer structures
Telephone receiver-off-hook-and-in-use detector
Long wavelength vertical cavity surface emitting laser device and method of fabricating the same
Carbonothioate phospholipid analogs as substrate of phospholipases and lipases
Anhydrous, transfer-resistant cosmetic lip compositions
Vehicle hoist