Views: 6 Author: Site Editor Publish Time: 2023-03-22 Origin: Site
What is a foundation drill？
In short, foundation drilling is a process that involves using a drill rig to bore a large hole deep into the ground in order to insert structures—such as piles—that are used to build a foundation for a construction project
Drilling methods for deep foundations
The most common drilling methods in deep foundation are Kelly drilling, continuous flight auger drilling, full displacement drilling, double rotary drilling, drilling with hammer grab, reverse circulation air injection drilling and down-the-hole drilling.
How do you drill a hole in a foundation?
Start the drill at its lowest speed for better control. Drill forward with steady, light pressure; do not force the drill. Drill the guide hole to a depth of 1/8- to ¼-inch. Stop the drill, sweep or blow away the accumulated concrete dust and pull out the drill.
Rotary drilling rigs with HAOQI Roller bit core barrel achieve high efficient works. If you drilling hard formation, HAOQI made Core barrel with roller bit.
