Resources Contact Us Home
Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit

Image Number 15 for United States Patent #8118115.

There is provided a method for drilling a cased hole and installing a micropile. A sonic drilling apparatus is positioned at a desired location. The sonic drilling apparatus includes a rotating and vibrating apparatus for rotating and vibrating a drill string into the ground. A retrievable drill bit is operatively connected to the drill string. The cased hole is drilled to a desired depth by rotating and vibrating the drill string into the ground. The retrievable drill bit is retrieved from the cased hole following the drilling of the cased hole to the desired depth. A micropile is lowered into the cased hole following the retrieval of the retrievable drill bit. Grouting material may be discharged into the cased hole before or after the drill string is removed from the ground. In another embodiment, a removable drill bit may be used in place of the retrievable drill bit.

  Recently Added Patents
Asset control in location tracking system
Rose plant named `Esm R068`
Method and apparatus for charging a power pack of a portable electronic device
Method for producing cathode active material for a lithium secondary battery
Method and apparatus for management and analysis of services in VoIP networks
Systems and methods for selective text to speech synthesis
Inducement of organogenetic tolerance for pancreatic xenotransplant
  Randomly Featured Patents
Backplate of field emission device with self aligned focus structure and spacer wall locators
Banking machine controlled responsive to data read from data bearing records
Culinary utensil
Displaying a complex tree structure among multiple windows
Biological insect control agent
Circuit for performing motion estimation and motion compensation
Method and device for atmospheric pressure-dependent correction of air/fuel ratio for internal combustion engines
Modular transportable controlled environment agriculture facility
Glazing adaptor
Campanula plant named `White Royal`