Are bored piles and steel columns completed after earthwork excavation?

After earthwork excavation, bored piles and steel columns are completed.

Earthwork excavation is a key process in the initial stage of the project and even in the construction process. Loosening, crushing, excavation and transportation projects of soil and rock. According to the geotechnical properties, earthwork excavation is divided into earthwork excavation and stone excavation. According to whether the construction environment is open-air, underground or underwater, it can be divided into open excavation, hole excavation and underwater excavation. In water conservancy projects, earthwork excavation is widely used in site leveling and slope cutting, and foundation excavation of hydraulic structures (sluice, dam, spillway, hydropower plant, pumping station building, etc.). ), underground cavern excavation (hydraulic tunnel, underground powerhouse, various flat tunnels, shafts and inclined shafts), river course, channel excavation and dredging, packing, building stone, concrete aggregate mining, cofferdam or temporary buildings such as masonry and concrete.