In China, it is an advanced pile foundation construction technology, which is widely used in recent years. It is widely used in highway, railway, bridge and large building foundation pile construction. In the early days, most of the rotary drilling rigs were imported from Germany and Italy, or Japanese second-hand rotary drilling rigs. In recent years, with the Qinghai Tibet railway, Beijing bird's nest and other projects to promote the influx of foreign brands, China's similar products are gradually developed.
The rotary excavation pile is the pile type constructed by rotary drilling rig. It is called full blown bored pile.
