20210191E002 Stark Residence Foundation Repairs 2022-12-19 FR 016FIELD REPORT
8A I
Associated Earth Sciences
Kirkland I Tacoma I Mount Vernon
42S-827-7701 1 www.aesgeo.com
Date
Project Name
Project No.
Report No.
12/19/2022
Stark Residence Foundation Repairs
20210191EO02
016
Location
Municipality
AESI Project Manager
AESI Field Rep
133 Sunset Ave N
City of Edmonds
Stephen Siebert, P.E.
Devon Nutter
Permit No.
Client/Owner
Attn
Requested By
BLD2022-0463
Susan Stark
Client
Contractor
Engineer/Architect
General Contractor
Pile Contractor
Weather
CG Engineering
Howard Clark Construction
Advanced Foundation
20s, cloudy
Supports LLC. /Evan
THE FOLLOWING WAS NOTED:
Helical Piles:
AESI was onsite today at 10:30am, as requested by the contractor to observe and document helical pile installation.
AESI did receive updated plans from CG Engineering, detailing which helical piles were kept, moved, and switched to pin
piles (see Fig 2).
Today, the contractor set up and installed helical piles H14 and H6 (see Figure 1). See Table 1 for helical pile installation
details. The helical piles appeared to be installed to minimum specifications, per plan.
Work finished around noon, and AESI plans to return to continue observing helical pile observation, but this would likely
be next week due to the upcoming holidays and cold weather.
Table 1: Installation Details
Helical
Depth measured
PSI range during
Design
Min -Max Install Torque (ft-
Comments
Anchor
from bottom of
installation.
Load
Ibs) 3,100-5,500 per design
Pile #
footing
Ending psi
(kips)
achieved?
H14
26'
1000-2000,
13
6,217
Lead section 7', then 5'-long
2,000
sections
H6
23.5'
1000-1600,
14
4,973
Lead section 7', then 5'-long
1,600
sections
Date Mailed:
v.2.20
Principal / PM: Stephen Siebert, P.E.
This document is considered a DRAFT until signed or initialed by on AESI Principal or Project Manager
Page 1 of 4
FIELD REPORT
8A S1
Associated Earth Sciences
Date
Project Name
Project No.
Report No.
12/19/2022
Stark Residence Foundation Repairs
20210191EO02
016
Table 2: Sheet S2.1
PILE
& ANCHOR
SCHEDULE
PILE
TYPE
DESIGN LOAD
PILE SHAFT
HELIX CONFIGURATION
MIN INSTALL TORQUE
MAX INSTALL TORQUE
KT
NOTES
P1-P24
2"0 PIN PILE
G.OK
2" STD PIPE
-
-
-
-
-
H1-H11
PIPE HELICAL PILE
14.OK
2 7/8" x 0.203" PIPE HELIX
DOUBLE HELIX (8", 10")
3,100 FT#
5,500 FT#
9
LOCK OFF SNUG TIGHT ONLY
H12-H15
PIPE HELICAL PILE
13.OK
2 7/8" x 0.203" PIPE HELIX
DOUBLE HELIX (8", 10")
2,800 FT#
5,500 FT#
9
LOCK OFF SNUG TIGHT ONLY
H16-1-12O
PIPE HELICAL PILE
14.OK
2 7/8" x 0.203" PIPE HELIX
DOUBLE HELIX (8", 10")
3,100 FT#
5,500 FT#
9
LOCK OFF SNUG TIGHT ONLY
NOTES:
1. CONTRACTOR SHALL VERIFY HELIX CONFIGURATION CAPABLE OF DEVELOPING THE DESIGN LOADS.
2. MIN INSTALL TORQUE ASSUMES Kt = 9.0IF A PILE WITH A DIFFERENT Kt VALUE IS USED MIN INSTALL TORQUE SHALL BE ADJUSTED.
3. MIN INSTALL TORQUE INCLUDES A FACTOR OF SAFETY OF 2.0.
4. ALL PILES SHALL INSTALLED TO TWICE THE DESIGN LOAD.
Figure 1: Pipe Pile and Helical Pile Plan. Helical piles installed today shown in purple Shade, previously installed shown as
purple circles.
LOWER LEVEL PLAN
2.41 U 2'-0., 4.-0.,
Page 2 of 4
FIELD REPORT
8A S1
Associated Earth Sciences
Date
Project Name
Project No.
Report No.
12/19/2022
Stark Residence Foundation Repairs
20210191E002
016
Figure 2: Updated Pipe Pile and Helical Pile Plan
Page 3 of 4
FIELD REPORT
8A S1
Associated Earth Sciences
Date
Project Name
Project No.
Report No.
12/19/2022
Stark Residence Foundation Repairs
20210191EO02
016
OUTPUT SPEED & TORQUE
HH-6K
SPECIFICATIONS
Digga HH-6K Screw
Anchor Drive
MODEL
HH-6K
MM-10K
OUTPUTSPEED
OUTPUTTORQUE
Theoretical Torque (ft-Ibs)
6,528gil2,t00pzi
10,478 @ 3,000psi
GPM
RPM
PSI
FT-LBS
4,765 @ 2,100psi
8,040 @ 3,000psi
7
7
500
1,554
Expected Torque (ft-Ibs)
73% efficiency)
( y)
(77%efficienc )
y
8
8
750
2,331
Max Pressure
2,100psi @ l lgpm
3,000psi @ 18.5gpm
Max Flow
15gpm @ 2300psi
18.5gpm @ 3000psi
9
9
1,000
3,108
Max Horse Power
20
33
10
10
1,250
3,886
Pressure Relief Valve
Included
NA
11
11
1,500
4,663
Standard Output Shaft
2'Hex
2.51Hex-Short
12
12
1,750
5,440
13
13
2,000
6,217
Weight (Ibs)
90
138
14
14
2,100
6,528
Overall Length (in)
20"
24.1'
Diameter (in)
9.5"
11.4'
15
15
HH-6K Hand-held unit is not suitable for machine mounting. Warranty void K used on machines.
Page 4 of 4