HomeMy WebLinkAboutFile Documents.834 W Hallam St.0010.2018 (12).ARBKResidence
834 West Hallam Street
Aspen, Colorado
Temporary Micropile Wall*
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
October 5, 2020 Residence
834 West Hallam Street
266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208
17-075G-D2
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:Seal:
Reviewed by Engineering
10/23/2020 10:43:22 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.
N. 8TH STREET
EXISTING DECIDUOUS TREE TO REMAIN
EXISTING DECIDUOUS TREE TO BE
EXISTING CONIFEROUS TREE TO BE
PROPOSED 5" ROLL CURB
PROPOSED CULVERT
INLET TO CLEAR WALKWAY
PROPERTY LINE
SETBACK LINE
37
41
10'-83/8"
SLOPE
T.O.PAVERS
98'-05/8"
1/4" PER 1'-0"A
T.O. CONC
98'-03/4"
37
42
41 PARKING 1
PARKING 237
98'-0" T.O. PLY
98'-1" T.O. FF
43 99'-11" T.O. PLY
100'-0" T.O. FF
99'-11" T.O. PLY
100'-0" T.O. FF
43
SLOPE 1/4" PER 1'-0"
T.O. CONC
98'-03/4"
ALLEY BLOCK 10
PARKING 3
SLOPE
1/4" PER 1'-0"
.25:12
T.O.WOOD
100'-03/4"
BUILDING A MAIN LEVEL T.O FF
at 100' = 7918'
BUILDING B MAIN LEVEL T.O
FF at 98'-1" = 7916'-1"
A
T.O. SLAB
98'-11/4"
B
15
B
PARKING 4
42
43
.25:12
A
10'-0"
FRONT YARD
SETBACK
T.O. SLAB
98'-1"
T.O.CONC
98'-0"
1:12
T.O. SLAB
98'-1"
T.O.CONC
98'-05/8"
OVERHANG
ABOVE
WALKWAY
5'-0"
PARKING 5 REAR YARD
SETBACK
A
42
T.O.CONC
98'-03/4"
42
T.O. CONC
98'-03/4"
17'-113/8"
A
A 63
PARKING 6
99'-6" T.O. PLY
99'-7" T.O. FF
SLOPE
T.O. CONC
99'-6"
1:12 1/2:12
T.O.CONC
99'-63/4"A BUILDING C UNIT 103 MAIN LEVEL
T.O FF at 99'-7" = 7917'-7"
BUILDING C MAIN LEVEL T.O
FF at 98'-1" = 7916'-1"
ACCESS AISLE
A 22'-113/8"
1/4" PER 1'-0"
98'-0" T.O. PLY
98'-1" T.O. FF
VAN ACCESSIBLE
43 41 43
EXISTING
WOOD FENCE
PROPOSED SITE PLAN AT GRADE
9'
-
8
7
/
8
"
3'
-
0
"
SI
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2
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6
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8
0
2+
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0
2+40
2+60
0+
2
0
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4
0
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6
0
1+
7
0
GR
A
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E
-
5
1+
8
0
GR
A
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E
-
5
2+50
GRADE-5
0+
5
0
GR
A
D
E
-
5
1+10
GRADE-5
1+
0
0
1+20
Proposed Micropile
Cap Location
Micropile Wall
Begin
Micropile Wall
Turn Line 1
Micropile Wall
Turn Line 7
Micropile Wall
Turn Line 9
Micropile Wall
Turn Lines 2 and 3 Micropile Wall
Turn Lines 4 and 5
Heavy loads shall not be placed
between micropile cap and this line
(Sheet Grade-4, Note 7.5)
Micropile Wall
Turn Line 8
1+
4
0
2+
2
0
Micropile Wall
Turn Line 6Heavy loads shall not be placed
between micropile cap and this
line (Sheet Grade-4, Note 3.4)
Proposed Micropile
Cap Location
Temporary Micropile Wall
Location
October 5, 2020 Residence
834 West Hallam Street
17-075G-D2
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:
RDJ
Seal:
N
SCALE: 1" = 5'
5 0 2.5 5
Notes:
1. Base plan by Forum Phi.
2. Ground nail and micropile walls and temporary slopes shall be constructed entirely
within property boundaries.
3. For utility installation, trench to back of micropile or ground nail wall. For micropile
wall, hand dig between micropiles and extend utilities through wall. For ground nail
wall, saw or hammer through shotcrete facing and extend utilities through wall.266 Red Cliff Circle Glenwood Springs, CO 81601
Phone: (970) 230-9208
RDJ
5'
accidental overdig
area that will be
backfilled once
micropile cap has
been poured.
Reviewed by Engineering
10/23/2020 10:43:16 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.
7910
7920
7900
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Micropile Wall
Cap
Existing GradeExisting Grade
Bottom of Excavation
(BOE)
1+
0
2
.
1
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=
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=
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1
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5
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E
=
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1+
3
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=
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=
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1
2
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=
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5
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.
0
Temporary Micropile Wall
Profile
October 5, 2020 Residence
834 West Hallam Street
17-075G-D2
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:
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
Reviewed by Engineering
10/23/2020 10:43:26 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 B7X1-38 Injection Bars or equivalent (Systems 1 and 2)
Williams B7X1-51 Injection Bars or equivalent (Systems 3 and 4)
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 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 reinforcing 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 Apartment Complex, 834
West Hallam Street, Aspen, Colorado" by H-P Kumar, Project No. 16-7-645, report dated January 10, 2017.
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. (temporary)
3.4 Surcharge Loading - The excavation shoring systems are designed to accommodate normal 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 range from 0 to 2 inches. The design calculations show there will be no adverse deflection of the ground surface at
the property line based on anticipated subsurface conditions.
4.0 Special Provisions
4.1 Wall geometry used in design was based on plans provided by client.
4.2 This design is valid only for B&Y Drilling, Inc. at the subject site. B&Y Drilling shall construct all shoring systems shown herein.
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 backfill completion 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 RJ Engineering is not aware of any utility conflicts. The contractors are responsible for field locating all nearby utilities. Conflicting utilities may require
micropile wall redesign at RJ Engineerings' discretion.
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. General contractor or representative of the general contractor is responsible for micropile wall layout.
4.11 Observation of micropile wall installation should be performed by a qualified engineer. Inspection and/or monitoring of the micropile wall after completion of
excavation should be performed. The frequency and duration of the observation and monitoring shall be determined by the qualified engineer. The
qualified engineer shall have experience with design and installation of micropile wall systems using injection bars. Observations shall be made at least on
a weekly basis during installation and during the service life of the system.
Temporary Micropile Wall
General Notes
October 5, 2020 Residence
834 West Hallam Street
17-075G-D2
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
Reviewed by Engineering
10/23/2020 10:43:29 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.
NORTH SIDE
Micropile - System 4
Station 1+10
EAST SIDE
Micropile - System 3
Station 1+70
WEST SIDE
Micropile - System 1
Station 0+50
EAST SIDE
Micropile - System 2
Station 1+80
SOUTH SIDE
Micropile - System 1
Station 2+50
Temporary Micropile Wall
Sections
October 5, 2020 Residence
834 West Hallam Street
17-075G-D2
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:Seal:
Notes:
1. The micropile wall shall be constructed entirely within property boundaries.
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
Reviewed by Engineering
10/23/2020 10:43:33 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.
Injection Bar
Field Installed Grout
MICROPILE CROSS
SECTION A-A'
Borehole
MICROPILE BEARING PLATE
FRONT VIEW
6"
Micropile Hole Diameter
= Bar Diameter +1/4"
6"
1/2" Min
Hex Nut Bearing Plate
MICROPILE DETAIL
Grout
A'A
Williams Injection Bar
6" Min
9"
Column
MICROPILE BEARING PLATE
SIDE VIEW
Cross Bar,
24" OC
Vertical Pile
MICROPILE CAP PLAN VIEW
VERTICAL SYSTEM
SYSTEMS 1, 2 AND 4
MICROPILE CAP CROSS SECTION
VERTICAL SYSTEM
SYSTEMS 1, 2 AND 4
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,
24" OC
Vertical Pile
MICROPILE CAP PLAN VIEW
VERTICAL SYSTEM
SYSTEM 3
MICROPILE CAP CROSS SECTION
VERTICAL SYSTEM
SYSTEM 3
12"
6"
Cross Bar, #4 Rebar
Continuous Waler,
#4 Rebar
3"
2" min.
3,000 psi Concrete
Grout
Continuous Waler,
#4 Rebar
Notes: Horizontal reinforcement shall be
continuous between Systems 2 and 3
Continuous Waler,
#4 Rebar
Continuous Waler,
#4 Rebar
TYPICAL SECTION
SYSTEM 2
12.0' MAX CUT
EXISTING GRADE
VARIES
PROPOSED
EXCAVATION
RL
=
2
0
'
MICROPILE CAP
SEE DETAILS
VARIES
2' MAX.
DH = 12.0' MAX.
WILLIAMS 38mm
INJECTION BAR
BOTTOM OF EXCAVATION
(SEE SHEET GRADE-3)
SEE SHEET GRADE-3 FOR
TOP OF CAP/WALL EL.
PROPOSED TEMPORARY
EXCAVATION AT 1H:1V
TYPICAL SECTION
SYSTEM 3
12.0' MAX. CUT
PROPOSED
EXCAVATION
RL
=
2
0
'
MICROPILE CAP
SEE DETAILS
WILLIAMS 51mm
INJECTION
EXISTING GRADE
BOTTOM OF EXCAVATION
(SEE SHEET GRADE-3)
DH = 12.0' MAX.
SEE SHEET GRADE-3 FOR
TOP OF CAP/WALL EL.
TYPICAL SECTION
SYSTEM 1
11.0' MAX CUT
PROPOSED
EXCAVATION
RL
=
1
5
'
MICROPILE CAP
SEE DETAILS
BOTTOM OF EXCAVATION
(SEE SHEET GRADE-3)
SEE SHEET GRADE-3 FOR
TOP OF CAP/WALL EL.
VARIES
WILLIAMS 38mm
INJECTION BAR
EXISTING GRADE
2' MIN.
DH = 11.0' MAX.
PROPOSED TEMPORARY
EXCAVATION AT 1.5H:1V
TYPICAL SECTION
SYSTEM 4
16.0' MAX CUT
EXISTING GRADE
PROPOSED
EXCAVATION
RL
=
2
0
'
MICROPILE CAP
SEE DETAILS
DH=16.0' MAX.
WILLIAMS 51mm
INJECTION BAR
BOTTOM OF EXCAVATION
(SEE SHEET GRADE-3)
SEE SHEET GRADE-3 FOR
TOP OF CAP/WALL EL.
Temporary Micropile Wall
Typical Sections and Details
October 5, 2020 Residence
834 West Hallam Street
17-075G-D2
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.
Reviewed by Engineering
10/23/2020 10:43:37 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.