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
Electronic device, information processing method, and storage medium
Pyridyldiamido transition metal complexes, production and use thereof
Signal routing dependent on a loading indicator of a mobile node
Method of creating animatable digital clone from multi-view images
Nonvolatile semiconductor storage device having conductive and insulative charge storage films
Method and apparatus for controlling power supply
Catheter with multiple electrode assemblies for use at or near tubular regions of the heart
  Randomly Featured Patents
Communications headset
Fence panel or the like
Jumping rods
Compact modular embedded device
Adhesive compositions and copper foils and copper clad laminates using same
Tool for determining optimal putter characteristics
Electric device with flash memory built-in
Device for fixing a fastening ring to a support member and support including it
Method of mechanically joining the marginal portions of a blank of a printing plate for rotary printing, and printing plate thus produced
Software power control of circuit modules in a shared and distributed DMA system