What is a PHC pile?
Acronym of Pretensioned spun High strength Concrete Piles, PHC Pile is high strength concrete. produced by Pretension which concretes made using spun has. over 78.5MPa(800kgf/㎠) compressive strength.
What is spun pile?
Spun pile is one of the types of piles are widely used in the world construction, for example in building and bridge. Spun pile is a prestressed concrete pile with circular hollow section. Thus, by this overview can be obtained new idea for the next research to improve the performance of spun pile carry seismic loads.
How is a precast concrete displacement pile installed?
Precast concrete piles are installed in the ground by using pile driving equipment. Due to the possibility of carrying vertical and horizontal loads as well as bending moments, precast piles are used for the foundation of all sorts of engineering structures under virtually every soil conditions.
What is PDA test pile?
High Strain Dynamic Load Tests, also called PDA tests, assess the capacity of several piles in a single day. PDA tests are performed during driving on pilot or production piles, taking advantage of the high strain impact provided by the driving hammer.
What is a displacement pile?
Introduction. Driven piles, also known as displacement piles, are a commonly-used form of building foundation that provide support for structures, transfering their load to layers of soil or rock that have sufficient bearing capacity and suitable settlement characteristics.
What is the difference between displacement and non displacement piles?
Displacement piles cause the soil to be displaced radially as well as vertically as the pile shaft is driven or jacked into the ground. With non-displacement piles (or replacement piles), soil is removed and the resulting hole filled with concrete or a precast concrete pile is dropped into the hole and grouted in.
What is Hiley formula?
Hiley’s formula R=E/(s+0.5c) is based on the principle of energy conservation in which the energy brought about by hammers during the action of hitting are transferred to piles in ground. When the hammer force and displacement is plotted, the energy absorbed by piles is the area under the curve.
How are piles tested?
Static load testing, where the pile is loaded gradually via a load cell from either reaction piles, kentledge or surface footings. This method of testing is generally considered the most reliable method of testing piles and most closely resembles the working loading conditions on the piles.
What are displacement piles and replacement piles?
Replacement piles: These are piles which are put into holes dug or augured out of the earth. The concrete, or steel, simply replaces the earth, clay etc…. which has been excavated. Displacement piles: These are precast or pre-formed piles which are driven into the ground by a huge piling hammer.
What does PHC stand for in concrete pile?
PHC stands for Pretensioned spun High-strength Concrete pile
What is a PHC pile in a bncp?
Introduction PHC (Pre tensioned spun high strength concrete pile) is the trend in recent years a new type of precast pile in the BNCP.PHC pile compared with bored pile, precast square pile and so on, to overcome in the poor geological conditions areas prone to quality problems of pile defect.
Is the performance of PHC pile can be changed?
Dongjin Pile Co.,LTD. ※ The above performance value of PHC pile is only for reference and can be changed.