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What do pile load tests determine?
In simple words, It basically determines the load bearing capacity of rock below the earth surface. If soil is weal enough that it can not support the load, then we bore below earth and find out rock location and conduct pile load testing to measure load bearing capacity. For example, pile foundation are provided are provided in highway bridge foundations if soil is weak...... Geotechnical Engineering.......
Reason for using pile in civil engg?
Pile foundation is used in case 1. sandy soil or at the places where the safe bearing capacity of the soil is very low 2.The load to be transferred is very high n the foundation area is less 3.Area is earthquake prone 4.Area is waterborne or has water logging problem
What is the minimum length of pile foundation?
its depend on the soil bearing capacity
Is pile foundation applicable only in soft soil?
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.
What are the fundamental requirements for building a foundation?
Load bearing capacity of the soil
What is the advantages and disadvantages of end bearing piles in construction?
advantages:1.Even in weak soil a pile will not fail by buckling and this effect need only be considered if part of the pile is unsupported, i.e. if it is in either air or water. 2.Bearing piles transfer the load through a soft soil to an underlying firm stratum.They also distribute the load through relatively soft soils that are not capable of supportingconcentrated loads.3.Typical end-bearing piles are driven through very soft soil, such as a loose silt-bearing stratumunderlain by compressible strata. This factor when determining the load the piles can support safely.disadvantages:the soil surrounding the pile may adhere to the surface of the pile and causes "Negative Skin Friction" on the pile.the pile is unsupported if is in air or water
What is column foundation?
It is rcc structure which carries the load of super structure to the soil.
Why a pile raft foundation?
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.
What is wall footing?
a portion of a foundation/substructure that transmits load unto the soil/ground.
Briefly explain the difference between the end bearing piles and the friction piles?
4. End-bearing piles. Typical end-bearing piles aredriven through very soft soil, such as a loose silt-bearingstratum underlain by compressible strata. Rememberthis factor when determining the load the piles cansupport safely.5. Friction piles. When a pile is driven into soil offairly uniform consistency and the tip is not seated in ahard layer, the load-carrying capacity of the pile isdeveloped by skin friction. The load is transferred to theadjoining soil by friction between the pile and thesurrounding soil. The load is transferred downward andlaterally to the soil
Can you use pile foundation on existing foundation?
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)
What is the Purpose of foundation in building construction?
The purpose of a foundation is to distribute the load from the superstructure to the soil below so that the structure is safe and can with stand the loads - dead load,wind load, live load and seismic loads. The settlements should also be with in accepted limits.
