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
Scaleable status tracking of multiple assist hardware threads
Expandable mobile device
Image correction method
Fuel cell module, manufacturing method thereof and unit containing several of the latter
Power supply apparatus for light emitting diode
Promoting content
  Randomly Featured Patents
Method and apparatus for applying an elastic strand to a disposable diaper
Spiral wound gasket
Air outlet for interior spaces, particularly for the interior space of a motor vehicle
Gas-flow operated switch
Dynamic throttling of priority service calls
Polymer composition for controlled release of active ingredients in response to pH, and a process of preparing the same
Distractor mechanism for external fixation device
Tetronic, thiotetronic and tetramic acid derivatives as phospholipase A.sub .
Method of making hose construction
Method and apparatus for pitch modulation and gender identification of a voice signal