** LOAD CARRYING CAPACITY OF PILE**

AS PER IS: 2911

( Actual Program
is included in Super
Civil CD )

** PROGRAM
INFO / LIMITATIONS.**

**
The static formula is used to calculate pile capacity. **

This program permits only fifteen (15) layers of soil data.

Load carrying capacity is obtained after applying a factor of safety
of 2.5 .

It is assumed that 67 % of the pile resistance ( skin friction ) is
expected to be mobilized during uplift
.

In calculation of value of ALPHA the values corresponding to bored
piles are assumed.

Value
of NC is taken as 9.00 as per code guide lines.

Value
of K (coefficient of earth pressure ) is taken as 1.00 in calculation
.

Vertical
load carrying capacity is least of the following.

Capacity based on Skin friction + End bearing.

Capacity of plain concrete section.

Lateral
load capacity of pile is taken as average of fixed + free head
conditions.

Lateral
load carrying capacity is least of the following.

Capacity based on allowable lateral deflection of 5 mm.

5 % of vertical capacity of pile.

E
= 5000 * FCK ^ 0.50.

**
Value of ALPHA corresponding to value of N, and value of K1 & K2
corresponding to values of N & CU
are as under.**