Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Screwed steel pile and method of construction management therefor










Image Number 18 for United States Patent #6881014.

There is provided a screwed steel pile, the end portion of which is open, characterized in that: an apparent resistance at the pile end portion of the pile is reduced when the ground strength is suddenly increased, so that the pile can be easily penetrated into the ground and an intensity of the finally obtained bearing capacity of the pile is high.The specific means is that a pile end portion of the pile body composed of a steel pipe or a hollow pipe made of another material is made open, and one or a plurality of wings are provided on the outside of the pile end portion of the pile body. The pile end portion of the wing may be protruded downward from a pile end face of the pile body.There is provided a method of construction management for managing the construction of a screwed steel pile having one or a plurality of wings on the outside face of the lower end portion of the pile, comprising the steps of: finding penetrative resistance Rp of a bottom plate portion in the process of construction from the balance between inputted energy, which has been inputted to the pile top portion, and consumed energy which has been released from the bottom plate portion; and controlling to continue and/or complete penetration of the screwed steel according to an intensity of penetrative resistance while the penetrative resistance Rp is being found.








 
 
  Recently Added Patents
Automotive lighting system
Bit error mitigation
Switching element for a valve train of an internal combustion engine
Diagnostic data interchange
Assembly for providing an aligned stack of two or more modules and a lithography system or a microscopy system comprising such an assembly
Managing multiple web services on a single device
Semiconductor device and manufacturing method thereof
  Randomly Featured Patents
Injection pump for air-compressing injection-type internal combustion engine
Apparatus for continuous purification of liquids, dewatering and drying of the separated solids
Avoiding oscillation in self-synchronous bi-directional communication system
Ore separator apparatus
Method and apparatus for incremental computation of a linear function
Method for preventing fouling of a heat exchanger for cooling residue from a hydrodesulfurization/hydrocracking process
Pressure contact tab/cover construction for electrochemical cells
Spout installation method and spout installation device
Method and apparatus for driving plasma display panel
Electric terminal fitting