How many types of piles are there in the site? What procedures are usually used for piling? Such as eyes open what kind of..
Precast pile, artificial dig hole pile, sinking pipe filling pile, spiral drilling pouring pile and powder spraying pile.
(3) screw in pile;The screw in pile is a spiral plate at the end of the pile, which is gradually transferred into the foundation by the torsion of the external machinery. The cross section of the pile is generally small, but the spiral plate is relatively large, and the disturbance of the pile side soil is larger during the construction of the spiral pile, so the screw plate of the pile head bears the axial pressure or tensile force of the pile.(4) vibration sinking pile;The vibration sinking pile is the vibrating sinking pile, and the precast pile is sunk into the ground by the vibration and vibration action of the vibrating pile driving machine. This method of construction is basically between the method of penetration and the method of pressing in.
(1) driven pile;The driven pile is to pile the pile into the foundation soil by the power impact of the machine. The ancient stakes were artificially driven, while modern driven piles employ a variety of specialized piling machines, such as diesel hammers, pile drivers, etc..In order to reduce the vibration, especially to overcome the larger pile resistance, a shallow hole or a small pile hole is drilled at the foundation pile position, and then the pile body is inserted into the pile. This often happens when piling meets the local hard soil or the lens is decent and difficult to pass through. The pre drilling method is convenient for the construction, but it also reduces the effect of the pile compacting and has a certain loss of the bearing capacity of the pile, which should be estimated in the design of pile foundation.(2) press in pileThe pressed pile is pressed by a special pile driver to push the prefabricated pile into the ground by static force. The method of pressing construction there is almost no pile that problems such as vibration and noise, but the pile capacity is less than the driving method, it is suitable for the requirements on bearing capacity of the pile is not very high, such as the underpinning both building foundation.
