computations. Subroutine BASEL calculates the displace-

ment at the base for given applied down-directed loads at the

base. Subroutine SHAFL evaluates the load transferred to

and from the shaft for relative displacements between the

shaft and soil. An iteration scheme is used to cause the

Program AXILTR, AXIal Load-Transfer, consists of a main routine

calculated applied loads at the top (butt) to converge within

and two subroutines. The main routine feeds in the input data,

10 percent of the input load applied at the top of the shaft.

calculates the effective overburden stress, and determines whether

the load is axial down-directed, pullout, or if uplift/downdrag forces

develop from selling or consolidating soil. The main routine

with descriptions given in Table C-2.

also prints out the

Line

Input Parameters

Format Statement

1

TITLE

20A4

2

NMAT

NEL

DX

GWL

LO

IQ

IJ

2I5,2F6.2,3I5

3

I

J

K

SOILP DS

DB

3I5,3F10.3

4

E50 (Omitted unless K = 2, 5, 9)

E13.3

5

LLL

I5

6

MAT GS EO WO PS CS CC C PHI AK PM

I3,3F6.2,F7.0,2F7.2,

(Lines 5 repeated for each material M = 1,NMAT)

7

ALPHA (Omitted unless I = 6)

7F10.5

( input for each material MAT = 1,NMAT)

8

M IE(M)

2I5

(Line 8 repeated for each element M and number of soil

IE(M). Start with 1. The last line is NEL NMAT)

9

RFF GG

F6.3,E13.3

(Omitted unless K = 7, 8, 9)

10

(Omitted unless K = 3, 4, 5, 6)

10a

NCA ( <12)

I5

10b

T(M,1)... T(M,11) (Input for each curve M = 1,NCA

11F6.2

10c

S(M)

(Input on new line for each

F6.3

M = 2,11; S(1) input in program as 0.00)

11

(Omitted unless I = 5)

11a

NCC ( <12)

I5

11b

FS(N) ZEPP(N) NCUR

2F10.3,I5

(Input on new line for each N = 1,NCC)

12

(Omitted unless J = 0)

12a

NC ( >1)

I5

12b

EP(M) ZEP(M)

E13.3,F6.2

(Input on new line for each M = 1,NC; at least a top and bottom

term required)

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