20210191E002 Stark Residence Foundation Repairs 2022-12-06 FR 014FIELD 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.
12/06/2022
Stark Residence Foundation Repairs
20210191EO02
014
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
NA
Advanced Foundation
30s, cloudy
Supports LLC. /Evan
THE FOLLOWING WAS NOTED:
Helical Piles:
AESI was onsite today at 10am, as requested by the contractor to observe and document helical pile installation.
Today, the contractor set up and installed helical piles H17, H15, and H8 (see Figure 1). See Table 1 for helical pile
installation details. The helical piles appeared to be installed to minimum specifications, per plan. The crew from
Advanced Foundation Supports was very efficient, and all helical piles were installed without problem.
We understand that the contractor is waiting on direction from the structural engineer regarding installation of helical
piles H3, H4, and H6. Helical Pile H3 and H4 are both located in tight, confined spaces with very low clearance, making
installation very difficult. We understand that the contractor has suggested using pipe piles as an alternate in these
locations and is waiting for a response from CG Engineering. In addition, what appears to be a timber pile was found at
the original location of helical pile H6 (see Photo 1). Relocating H6 around the corner of the foundation, closer to H7,
would provide enough room for installation, but this can't be done until it has been reviewed and approved by CG
Engineering.
Work finished at 1:30PM, and AESI plans to return later in the week to continue observing helical pile installation.
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?
H17
22'
1000-1900,
14
5,906
Lead section 7', then 5'-long
1,900
sections
H15
22.5'
800-1750, 1,750
14
5,440
Lead section 7', then 5'-long
sections
H8
23'
1000-1650,
14
5,130
Lead section 7', then 5'-long
1,650
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 Pri ipa or Project Manager
Page 1 of 3
FIELD REPORT
8A S1
Associated Earth Sciences
Date
Project Name
Project No.
Report No.
12/06/2022
Stark Residence Foundation Repairs
20210191EO02
014
Table 2: Sheet S2.1
PILE
& ANCHOR
SCHEDULE
PILE
TYPE
DESIGN LOAD
PILE SHAFT
HELIX CONFIGURATION
MIN INSTALL TORQUE
MAX INSTALL TORQUE
KT
NOTES
Pl-P24
2"0 PIN PILE
6.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-HIS
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-H2O
PIPE HELICAL PILE
I 14.0K
2 7/8" x 0.203" PIPE HELIX
I DOUBLE HEUX (8",10")
3,100 FT#
5,500 FT#
9
1 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
Page 2 of 3
FIELD REPORT
8A S1
Associated Earth Sciences
Date
Project Name
Project No.
Report No.
12/06/2022
Stark Residence Foundation Repairs
20210191EO02
014
OUTPUT SPEED & TORQUE
Digga HH-6K Screw
Anchor Drive
HH-61K
SPECIFICATIONS
OUTPUTSPEED
OUTPUTTORQUE
MODEL
HH-61K
MM-10K
Theoretical Torque (ft-Ibs)
6,528 @ 2,100psi
10,478 @ 3,000psi
GPM
RPM
PSI
FT-LBS
Expected Torque (ft-Ibs)
4,765 @ 2,100psi
8,040 @ 3,000psi
7
7
500
1,554
(73%efficiency)
(77%efficiency)
8
8
750
2,331
Max Pressure
2,100psi @ I Igpm
3,000psi @ 18.5gpm
9
9
1,000
3,108
Max Flow
15gpm @ 2300psi
18.5gpm @ 3000psi
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
2.5'Hex-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'
15
15
Diameter (in)
9.5"
11.4'
HH-6K Hand-held unit is not suitable for machine mounting. Warranty void if used on machines.
Photo 1: Timber Pile Found at helical pile H6 Original Location
Page 3 of 3