Wisdom Tips Tools Machines Easy Easyway Easywork !
Introduction
The so-called “wet drilling method to make holes”, that is, the drilling machine is used to drill several holes along the pile diameter, the holes are connected, and the core is taken after drilling. After all the hydraulic drilling holes are connected into a ring, the pile core and the pile wall are separated to form the empty surface of the pile core, and then the hole is drilled in the pile core, and the steel is driven into the hole, so that the rock is split and broken down into several small pieces, and the stone is lifted out of the hole by the hoist. Because the drilling coring machine must ensure that the drill bit is in the cooling water during the operation process, and the cooling water retains a certain pressure to wash the drill directly, so that it does not silt drilling and stuck drilling, so the process is commonly known as “water drilling method”.
source