HomeMy WebLinkAboutFile Documents.617 W Bleeker St.0062-2019-BRES (32)Residence
617 West Bleeker Street
Aspen, Colorado
Temporary Micropile Wall*
for Excavation Shoring
Grade-1. Temporary Micropile Wall - Cover
Grade-2. Temporary Micropile Wall - Location
Grade-3. Temporary Micropile Wall - Profile
Grade-4. Temporary Micropile Wall - General Notes
Grade-5. Temporary Micropile Wall - Sections
Grade-6. Temporary Micropile Wall - Typical Sections and Details
* These plans and specifications are designed to provide temporary excavation support with a finite design life during construction operations.
Long-term earth pressure loads shall be included in the structural design.
Temporary Micropile Wall
Cover
November 12, 2019 Residence
617 West Bleeker Street
266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208
19-050G-D1
Grade-1
of 6
RDJ
Project Number:
Date:Sheet Number:Prepared by:Project:
Set Revisions
Date Revision/Issue Prepared by
B&Y Drilling, Inc.
Designed For:
Sheet Grade-2 RDJ01.23.20
Seal:
Sheets Grade-2, 3 and 5 RDJ05.07.20
06/22/2020
Reviewed by Engineering
06/26/2020 8:35:22 AM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen. The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements." The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.
Main Wall
Begin Wall
Main Wall
Turn Line 1
Main Wall
Turn Line 2
Main Wall
Turn Line 3 Main Wall
Turn Line 4
Main Wall
Turn Lines 5 and 6
Main Wall
End Wall
Proposed Micropile
Cap Location
(Main Wall)
0+20
0+40
0+60
0+80
1+
0
0
1+
2
0
1+
4
0
1+60
1+80
2+00
2+20
0+50
GRADE-5
1+
1
0
GR
A
D
E
-
5
1+70
GRADE-5
2+10
GRADE-5
3.7'
3.1'
3.0'
Heavy loads shall not be placed
between micropile wall and this
line (Sheet Grade-4, Note 3.4)
Top of Temporary
Slope at 1.5H:1V
Top of Temporary
Slope at 1.5H:1V
Drywell Wall
Begin Wall
Drywell Wall
Turn Line 1
Drywell Wall
End Wall
0+
1
0
GR
A
D
E
-
5
Proposed Micropile
Cap Location
(Drywell Wall)
Temporary Micropile Wall
Location
November 12, 2019 Residence
617 West Bleeker Street
19-050G-D1
Grade-2
of 6
RDJ
Project Number:
Date:Sheet Number:Prepared by:Project:
Sheet Revisions
Date Revision/Issue Prepared by
B&Y Drilling, Inc.
Designed For:
Added temporary excavation limits RDJ01.23.20
Seal:
N
SCALE: 1" = 8'
8 0 4 8
Notes:
1. Base plan by Roaring Fork Engineering dated 09-26-2019.
2. For utility installation, trench to back of micropile wall. Hand dig between
micropiles and extend utilities through wall.
266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208 06/22/2020
Reviewed by Engineering
06/26/2020 8:35:22 AM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen. The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements." The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.
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=
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3
.
0
BO
E
=
7
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2
2
.
0
Existing Grade
Micropile Wall CapTemporary Slope
at 1.5H:1V
Temporary Slope
at 1.5H:1V
El
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(
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)
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7910
7900
7890
7880
7920
7930
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7900
7890
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v
a
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(
f
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)
7880
7930
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0
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.
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W
a
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Sy
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=
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.
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=
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1
.
0
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=
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.
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1
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=
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1
.
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=
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1
.
0
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E
=
7
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0
5
.
0
MAIN WALL
DRYWELL WALL
Temporary Micropile Wall
Profile
November 12, 2019 Residence
617 West Bleeker Street
19-050G-D1
Grade-3
of 6
RDJ
Project Number:
Date:Sheet Number:Prepared by:Project:
Sheet Revisions
Date Revision/Issue Prepared by
B&Y Drilling, Inc.
Designed For:Seal:
Extended Main Wall by 2 ft. and added Drywell Wall RDJ05.07.20
266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208
SCALE:
HORIZONTAL 1" = 10'
VERTICAL 1" = 10'
ABBREVIATIONS:
EG - Existing Grade
PG - Proposed Grade
TOW - Top of Wall
BOE - Bottom of Excavation 06/22/2020
Reviewed by Engineering
06/26/2020 8:35:22 AM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen. The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements." The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.
1.0 Temporary Micropile Wall Materials
1.1 Micropile bars - Williams T30S Injection Bars or equivalent (Battered Piles - Systems 1 and 2)
-Williams T40N Injection Bars or equivalent (Vertical Piles - Systems 1 and 2)
- Williams T52N Injection Bars or equivalent (System 3)
fy=85,000 psi
1.2 Grout - Grout may be neat-cement or with sand, with Type II cement in accordance with ASTM C150. Water-cement ratio should be between 0.4 and 0.6.
f'c=3,000 psi (28-day strength)
1.3 End hardware - Nuts shall be in accordance with manufacturer's recommendations. Bearing plate shall be in accordance with ASTM A36, Grade 36.
1.4 Concrete - Concrete mix shall consist of Type II cement in accordance with ASTM C150, potable water and normal weight aggregate in accordance with
ASTM C33. Air entrainment is not required. Admixtures, if used, should be non-corrosive to steel.
f'c=3,000 psi (28-day strength)
1.5 Cap reinforcement shall be in accordance with ASTM A615.
fy=60,000 psi
2.0 Temporary Micropile Wall Construction Sequence
2.1 Install micropiles at the locations and to the lengths shown on the plans. Micropile injection bars shall be installed per manufacturers recommendations.
Micropile locations may vary by up to 3".
2.2 Install end hardware and waler bars as shown on the drawings.
2.3 Pour concrete cap to the minimum thickness shown on the drawings and to attain the minimum coverages specified herein. Cold weather protection
measures may be necessary.
2.4 After concrete and grout has attained 80% of specified strength, complete excavation to full depth of wall not to exceed maximum wall heights as shown on
the drawings. Excavation shall extend to grout/micropile columns (cap may be undermined). Soil should not be left between excavation face and
grout/micropile columns.
3.0 Temporary Micropile Wall Design Parameters
3.1 The micropile shoring was designed in general accordance with procedures contained in the FHWA "Micropile Design and Construction Reference Manual",
Publication No. FHWA NHI-05-039, December 2005.
3.2 The following strength parameters were assumed for the subsoils based on the "Subsoil Study for Foundation Design, Proposed Residence, 617 West Bleeker
Street, Aspen, Colorado" by HP-Kumar, Project No. 19-7-550, report dated October 17, 2019.
The following values were assumed for soil design parameters:
f g
(deg) (psf) (pcf)
Sand and Gravel 36 100 130
An experienced geotechnical engineer should verify the above design parameters during construction.
3.3 Global Factor of Safety = 1.3 min.
3.4 Surcharge Loading - The excavation shoring systems are designed to accommodate normal vehicular traffic and construction surcharge of material and light trucks,
not heavy loads such as cranes (wheels or outriggers), concrete pumpers (wheels or outriggers) or large stockpiles that apply a ground
pressure of 1,000 psf or greater. Heavy loads shall not be placed within 8 feet of micropile cap unless approved by RJ Engineering.
3.5 No groundwater table was assumed. If groundwater is encountered during excavation, the excavation shall not continue and the site shall be dewatered to below the
base of planned excavation elevation prior to completion of the excavation.
3.6 The micropile walls lateral deflection may be up to about 0.003' per foot of excavation depth at the ROW, and no adverse deflection of the ground surface at the
private property line based on anticipated subsurface conditions.
4.0 Special Provisions
4.1 Wall geometry used in design was based on plans provided by the client.
4.2 This design is valid only for B&Y Drilling, Inc. at the subject site.
4.3 Excavation shall extend to micropile columns. During the excavation process, material should not be left between the excavation face and the grout/micropile
column.
4.4 The micropile wall designs are valid only for dry surface and subsurface conditions. If surface water or groundwater is encountered during excavation or installation,
RJ Engineering should be notified immediately and the wall may be redesigned at the discretion of RJ Engineering. Surface and subsurface drainage from adjacent
properties should not be discharged at the top or through the micropile wall. Saturated soils may result in materials piping out from between micropiles resulting in
failure and/or excessive wall movements.
4.5 The design life on this micropile wall is 12 weeks. Design life is defined by the beginning of excavation to the construction of the foundation wall. If the duration of
the project exceeds the 12 week duration, RJ Engineering shall be contacted to evaluate the performance of the system and determine if the design life can be
extended.
4.6 RJ Engineering is not responsible for maintaining slope stability above and below the micropile wall during construction.
4.7 There appears to be no known utility conflicts with installation of the micropile walls. Utility locations presented shall be field verified prior to micropile wall
installation.
4.8 RJ Engineering is not responsible for quality control, quality assurance, changed conditions or problems resulting from improper construction techniques.
4.9 RJ Engineering is not responsible for construction site safety.
4.10 RJ Engineering is not responsible for wall layout in the field. General contractor or representative of the general contractor is responsible for micropile wall layout.
Temporary Micropile Wall
General Notes
November 12, 2019 Residence
617 West Bleeker Street
19-050G-D1
Grade-4
of 6
RDJ
Project Number:
Date:Sheet Number:Prepared by:Project:
Sheet Revisions
Date Revision/Issue Prepared by
B&Y Drilling, Inc.
Designed For:Seal:
266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208 06/22/2020
Reviewed by Engineering
06/26/2020 8:35:22 AM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen. The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements." The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.
WEST SIDE
MAIN WALL
System 2
Station 0+50
NORTH SIDE
MAIN WALL
System 2
Station 1+10
EAST SIDE
MAIN WALL
System 3
Station 1+70
EAST SIDE
MAIN WALL
System 2
Station 2+10
SOUTH SIDE
DRYWELL WALL
System 3
Station 0+10
Temporary Micropile Wall
Sections
November 12, 2019 Residence
617 West Bleeker Street
19-050G-D1
Grade-5
of 6
RDJ
Project Number:
Date:Sheet Number:Prepared by:Project:
Sheet Revisions
Date Revision/Issue Prepared by
B&Y Drilling, Inc.
Designed For:
Added section for Drywell Wall RDJ05.07.20
Seal:
Notes:
1. Micropiles are planned outside of property lines on the east and west sides.
Permission shall be obtained prior to installation on adjacent properties.266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208
SCALE:
HORIZONTAL 1" = 10'
VERTICAL 1" = 10'
ABBREVIATIONS
EG - Existing Grade
PG - Proposed Grade
TOW - Top of Wall
BOE - Bottom of Excavation
06/22/2020
Reviewed by Engineering
06/26/2020 8:35:22 AM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen. The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements." The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.
Cross Bar,
24" OC
Vertical Pile
MICROPILE CAP PLAN VIEW
VERTICAL SYSTEM
SYSTEM 3
MICROPILE CAP CROSS SECTION
VERTICAL SYSTEM
SYSTEM 3
12"
18"
Cross Bar, #4 Rebar
Continuous Waler,
#4 Rebar
3"
2" min.
3,000 psi Concrete
Grout
Vertical Pile
Continuous Waler,
#4 Rebar
Notes: Vertical piles 12" center to center with
back row at 12" offset
12"
12"
Continuous Waler,
#4 Rebar
Continuous Waler,
#4 Rebar
Cross bar,
36" OC
Continuous waler,
#4 rebar
Vertical pile
12"
18"
36"
Cross bar, #4 Rebar
Continuous Waler,
#4 Rebar
3"
2" min.
3,000 psi Concrete
Grout
Continuous Waler,
#4 Rebar
Battered pile
Battered pile
Vertical pile
18"
18"
Continuous waler,
#4 rebar
36"
Notes: Vertical pile 18" center to center
Battered pile 36" center to center
MICROPILE CAP PLAN VIEW
BATTERED SYSTEM
SYSTEMS 1 AND 2
MICROPILE CAP CROSS SECTION
BATTERED SYSTEM
SYSTEMS 1 AND 2
TYPICAL SECTION
SYSTEM 3
18.0' MAX CUT
RL
=
3
0
f
t
.
Design Height (DH)
18 ft. max.
Temporary Slope
2.0 ft. max.
Exposed Height
Varies
Proposed
Excavation
Bottom of Excavation (BOE)
(See Sheet Grade-3)
Williams B7X1-51
Injection Bar
Existing Grade
Temporary Excavation
Slope at 1.5H:1V
Micropile Cap
See Details
Top of Cap/Wall El.
(See Sheet Grade-3)
TYPICAL SECTION
SYSTEM 1
15.0' MAX. CUT
Existing Grade
Top of Cap/Wall El.
(See Sheet Grade-3)Micropile Cap
See Details
Design Height (DH)
15.0 ft. max.
Varies
Varies
2.0 ft. max.
Proposed Temporary
Excavation at 1.5H:1V
Proposed
Excavation
RL
=
2
0
f
t
.
R
L
=
1
5
f
t
.
Williams T30S
Injection Bar
Williams T40N
Injection Bar
5' - 8"
Bottom of Excavation El.
(See Sheet Grade-3)
20°
MICROPILE BEARING PLATE
FRONT VIEW
6"
Micropile Hole Diameter
= Bar Diameter +1/4"
6"
1/2" Min
MICROPILE BEARING PLATE
SIDE VIEW
Hex Nut Bearing Plate
MICROPILE DETAIL
BAR
DRY WELL WALL
Grout
A'A
Williams Injection Bar
6" Min
9"
Column
Injection Bar
Field Installed Grout
MICROPILE CROSS
SECTION A-A'
Borehole
TYPICAL SECTION
SYSTEM 2
18.0' MAX CUT
Existing Grade
Top of Cap/Wall El.
(See Sheet Grade-3)Micropile Cap
See Details
Design Height (DH)
15.0 ft. max.
Varies
Varies
2.0 ft. max.
Proposed Temporary
Excavation at 1.5H:1V
Proposed
Excavation
RL
=
3
0
f
t
.
R
L
=
2
0
f
t
.
Williams T30S
Injection Bar
Williams T40N
Injection Bar
7' - 5"
Bottom of Excavation El.
(See Sheet Grade-3)
20°
Temporary Micropile Wall
Typical Sections and Details
November 12, 2019 Residence
617 West Bleeker Street
19-050G-D1
Grade-6
of 6
RDJ
Project Number:
Date:Sheet Number:Prepared by:Project:
Sheet Revisions
Date Revision/Issue Prepared by
B&Y Drilling, Inc.
Designed For:Seal:
NOT TO SCALE
Abbreviations:
RL - Reinforcement Length
DH - Design Height
266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208
NOTES:
1. See Sheet Grade-3 for top of wall/cap and bottom of excavation elevations.
06/22/2020
Reviewed by Engineering
06/26/2020 8:35:22 AM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen. The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements." The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.