Answer / m.gayathri devi

un-reamed pile foundation

Answer / m k meena

pile foundation

Answer / sjtbehera

first things it is not block cotton soil it is black cotton
soil. usally this kind of soil we are going to minm 3mtrs
deptth for foundation. if safe bearing capacity of soil is
less then we are proceeding for pile

Answer / milind borkar

For Black Cotton Soil We r providing :- Pile Foundation

Answer / karan

unde reamed pile is satisf
actory solution for black cotton soil. As it is crack free construction even black cotton soil have tendancy of crack.under reamed pile is slender rod like structure having bulb toward its lenght.

Answer / k. bu.babu

Generally
where the Week foundation available
We have increase bearing capacity of soils
preferred....Pile foundation

Answer / satya.mvvs

The foundation shall be depend on the type / importance of
the structure,

Pile foundation is preferred for more depth of foundations
For low depths raft foundations shall be preferred.

Answer / ranjan sahoo

GENERALLY FOR BLACK COTTON SOIL WE USE PILE FOUNDATION.

Answer / sahilshah.civil@gmail.com

Generally Black Cotton Soil have bearing capacity = 12.5 T/Sq m

Hence we have to transfer load

With Pile foundation we create friction hence transfer load partially by friction & end bearing.

Answer / linganna

for any structure foundation type =f(soil type,importance of structure,size of the structure, load to be transformed to soil)
1. cohesive soils have low bearing capacity so we prefer pile foundation (have high surface area so skin friction resistance more)
2. cohesive(bentonite clay) have high swelling properties to counter attack this we provide under-reamed pile
3.if size of the structure very large then load/area less so then pile foundation not preferable

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