What is the difference between bored pile and rotary pile?
Rotary drilling rig is the first barrel type rotary drill through the bottom valve with broken rock and soil, and directly in the drilling bucket, and then by the rig hoisting device and drill rod of the drilling bucket dumping hole is proposed, so the cycle, constantly borrow dump, until the drill to the design depth. For the good cohesive rock soil layer, dry or clear water drilling technology can be adopted, without mud wall protection. For loose and easy to collapse formations, or groundwater distribution, unstable wall, it is necessary to use static mud wall drilling technology, and put in protective wall slurry or stabilizing liquid into the hole.
The construction of bored pile is different from that of retaining wall, such as mud wall protection method and full pipe construction method, two kinds.
The construction methods of mechanical drilling pile and rotary drilling pile are different.
Bored pile is wider, and all kinds of machinery or artificial way of pile foundation construction can be called bored pile. The rotary bored pile is a kind of bored pile, especially the drilling method of rotary drilling machine. Other drilling methods include spiral drilling, positive circulation, reverse circulation drilling, impact drilling, etc..
