Why do some people need to dig the foundation and pile it up to dig a hole?
First of all, depends on the type of your pile, prefabricated or bored pile.If it is a bored pile, then it is obvious to dig first.If it is a prefabricated pile, then pile it directly, then dig it.
how to do?You say the digging and then piling, probably because the pile is the need for technology, such as filling piles, you do not dig, you can not do, or that you have obstacles on the surface, to dig into the original soil piling, so good control piling quality
Digging foundation, piling and digging, piling are twoGenerally after the first pile driving, dig the foundation, you think, I pile is to pile machine back and forth, you dug the pit, how the machine down to pit how to walk, the foundation pit bearing capacity is not enough or the foundation pit is disturbed,
