There are various reasons such as:
1) Its not possible because pile foundation are designed for
2) Particular life cycle and its specially depends on ground conditions of soil
properties.
3) Pile foundation is one part of major foundation in construction where life cycle
is required more with another reason are pile foundation is used for which
type of structure its also important factor considering time of design.
4) One another major factor is settlement of existing pile foundation is in
specific limits or not.
Also so many reasons etc.
Thanks & Regards
HARSHAL.S.KHODE
Deputy Manager (QA/QC)
concrete qty for bulb portion in pile foundation
types of foundation....1. shallow foundation 2. deep foundation 3. pile foundation
I am assuming you are reffering to benthonite clay. It has a low peremeability and is used when low water content is desired such that their is low sinking and swelling of the foundation
It does not meant that pile foundation is only applicable for soft soils alone. For other type of soils it will not be much economical.
If the condition of the existing foundation is determined to be sound for the LIFE of the proposed structure and the proposed structure does not exceed the limitations of the existing structure. (example- putting a 2 story garage/apt on a foundation designed for the load of a one story garage)
By placing a plastic vapor barrier before casting the foundation
1.5 times of dia of pile.
It might be Short-board pile ;D
Matt or Raft Foundation Combined Footings Pile Cap Foundations Isolated Foundations Continous Foundation
pile is the steel layer and pier is the outer most layer'
If the soil is so lose that it cant hold the building even with pile foundation. So, piled raft foundation is used which make the building to float like a boat. That obeys Archimedes' principle-it is buoyed up by the weight of the earth displaced in creating the foundation.
its depend on the soil bearing capacity