Because the advantages of rotary drilling rig are still outstanding, does it play a big role in engineering?

Take the rotary drilling rig for example, because the advantages of this technology are still outstanding and it can play an important role in engineering. This technology has three main advantages for construction. One is that the drill bit can directly take out the rock and soil from the hole, so the hole-forming speed is relatively fast. With the increase of speed, the construction progress can also be accelerated, which is of great significance to shorten the construction period. Using this technology, the mud skin on the hole wall will be thinner, which is very beneficial to increase the side friction of pile foundation. This advantage can also greatly ensure the bearing capacity of the pile foundation design of Hunan foundation project, and the slag deposited at the bottom of the hole will be less, and it will be easier to clean the hole, so the quality of the pile will be better. The third advantage is that less mud will be used. Compared with the mud required for forward and reverse circulation drilling, it only needs one-twentieth to one-tenth of its appearance, which can meet the requirements of wall protection.