1994-01-28_REPORT - M1977378

• Permit No: M1977378
• IBM Index Class Name: REPORT
• Doc Date: 1/28/1994
• Doc Name: Concrete Cylinder Test Report
• From: Sundale Associates, Inc.
• To: Sunnyside Gold Corp.
• Media Type: D
• Archive: No

LEVELJBRENNEMAN BULKHEAD DESIGN CALCULATIONS
Notation: -
a = compression zone depth(in) minimum to balance rebar tension
A = area of rebar — in'
ft
b = beam width (1 in)
C = comp bending force (lb)
D = dead load (I
F = fluid load (39300) FS = factor of safety
f = square root of f c
f'r = rock cohesion ( >265 psi)
f;, = rebar yield strength (60000 psi)
h = tunnel height (9 ft)
K= (3.5 -2.5 -_
d
e = tunnel width (9 ft)
M = nominal beam moment (ft•lb)
m = minimum cover, form face to
rebar surface (3.5 in)
s = distance of beam analysis (12 in)
U = required strength (—lb 1
ft
V = nominal shear force (lb)
V„ = factored shear force (lb)
v = rebar shear stress (psi)
co = uniform load (lb )
ft)
February 21, 1994
A = area of shear reinforcement(in
b = web width (12 in)
c = centroidal distance (in)
d = distance, extreme compression
fiber to rebar centroid (32.5 in)
i {c = concrete comp strength (2500 psi)
f = concrete tensile strength (psi)
f = concrete shear strength (2 f': psi)
H = design water head (70 ft)
I = moment of inertia (in
L = beam length or depth (3 ft)
M = bending moment (ft-lb)
M„ = factored beam moment (ft-lb)
p = pressure head (30 psi)
S = section modulus (in
T = tensile bending force (lb)
V = concrete shear strength (lb)
V = rebar shear strength (lb)
v = concrete shear stress (psi)
W = bulkhead load (lb)
P = pressure gradient (psi 1
ft
III I I