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
Automatic engine oil life determination with a factor for oil quality
Methods and compositions for inhibition of neutrophil exocytosis
Communication system and data transmission method thereof
Automatic image-content based adjustment of printer printing procedures
Methods and systems for automated segmentation of dense cell populations
Humidity indicator and method for fabricating the same
Imaging apparatus for calculating a histogram to adjust color balance
  Randomly Featured Patents
Beverage package and a method of packaging a beverage containing gas in solution
Method and apparatus for installing acoustic sensors in a wellbore
Image processing circuit, displaying apparatus, and printing apparatus
Computer-based methods and systems for arranging meetings between users and methods and systems for verifying background information of users
Resonant reflector for increased wavelength and polarization control
Restraining fittings
Process for obtaining a mineral fiber based surfaced panel
Portable electronic device
Analog finite impulse response filter
Method of fabricating low leakage SOI integrated circuits