Lost Creek TH-CS080115
Feb 01 08 01:02p
barbara rose
972-459-7239
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#Pages =10+Cover
Tuesday,Janll2lY 15,2008
Rick OdeB
Inspector
City of Coppell
c.c. Keith Marvin, P.E.
Civil Engineer
255 Parkway Blvd.
Coppell, TX 75019
(972) 304-7044 Td.
(972) 304-3570 Fax
Dear Gentlemen:
Class IV RCP regarding cover. We will have 1" of cover above the pipe just for protection of the
pavement from cracking &om the anticipated heavy construction taftic as we begin building.
Regarding the temporary drainage we set the flow line of the pipe in relation to the current drainage of
the ditch along Coppell Road This could vary from the plans slightly, but both the engineer of record
and I feel that the imperative factor is that the water drairulge through the ditch continues to drain
which was the original intention of the design which has been entirely main1:2ined. Please review and
call Matt or I to discuss.
We work hard to produce a long lasting project of quality which I would hold up to any project in the
city and beyond. Our goals are your goals.
Thank you for your time and consideration, and please call if you have any further questions.
R~:l,~ A--
i
Jason R. Rose, Atrhitect TX#18341
(214) 454-7895 Cell
member
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Feb 01 08 01: 0310
barbara rose
972-459-7239
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ORACLE ENGINEERING
7012 Lindsley Avenue
Dallas, Texas 75223
Phone: (214) 321-1436
February 1, 2008
Mr. Keith Marvin, PE
City of Cappel!
255 E Parkway Blvd
Cappell, TX 75019
Re: Lost Creek T ownhomes
Coppell, Texas
Dear Keith:
As recommended by the manufacturer, we are requesting to pour the temporary approach slab to Coppell
Road on top of the 18" diameter Class IV RCP. The enclosed calculations confirm that the specified
class of pipe does not require additional cover on top of the pipe. If you have any questions, please
contact us.
Sincerely,
~
Matthew P. Kostial, P.E.
Oracle Engineering
Encl.
Cc: Jason Rose
Feb 01 08 01:03p barbara rose
,AT&T Yahoo! Mail- mattkostial@sbcglobal.net
972-459-7239
p.3
rage 1 ot I
'.''':/f\.'~ri'.,r~j MAIL
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Print - Close Window
Subject: 18" RCP analysis
Date: Fri, 1 Feb 200810:24:25 -0600
From: "Martin, Hugh (Grand Prairie) NA" <Hugh.Martin@hanson.bIP
TO: mattkostial@sbcglobal.net
Matt,
The requested RCP analysis is attached.
I ran it twice; once for flexible or no pavement and once for rigid pavement. In the case of rigid pavement. the program uses the
methods of the LEDFAA program, so it automatically assumes aircraft loading. Modifying the magnitude of the live load, you can
see how big a difference rigid pavement makes on the stresses in the pipe. I don't know if that's useful to you or not, but I
thought I'd include it in defense of your Class IV pipe class selection, if nothing else.
Feel free to call or email me with any questions.
Regards,
Hugh Martin, P.E.
SlructuraJ Design Engineer, South Central Region
Hanson Pipe & Preca61
1003 N. MacArthur Blvd.
Grand Prairie, TX 75050
Tel: 972 266 7553
Fax; 972 266 7596
Hugh MarM:@h3nson.com
'11,."1.''''' hanson, com
Attachments
Files:
,
~ j_ 18_R~PAna~-"~F (277k)
http://us.f832.mail.yahoo.com/ym/ShowLetter?box=Inbox&Msgld:07310_17583106_14062_1924_277010... 2/1/2008
Feb 01 08 01:03p
972-459-7239
barbara rose
Three Edge Bearing Analysis - Resul1s
Project Description I
Project Title: Analysis
Project Location:
Contract Number:
Country: US
Units: English
Alternative: 18" RCP - 0.1' to 1.0' of fill
Consultan~
Contractor:
Analrzed By: HGM
Date: 04-Jan-08
Comply To: ASTM (AASHTO
D-LOAD REQUIREMENTS FOR A 18 In. DIAMETER CIRCULAR PIPE
PIPE DATA
Inner Diameter (in.)
Wall 'B' Thickness (in.)
INSTALLA TIOH CONDITIONS
Minimum Depth of Fill (ft) ~M\ 1.J~,-rATiO#J: t:tLL::F 0
Maximum Depth of Fill (ft)
Soil Density (Ibfcu. ft)
Installation Type
Trench Width Cft)
SolI lateral Pressure/Friction Term (k....)
Parameters to compute Transition Width
Positive Projection Ratio
Soil Lateral Pressure Ratio
Soil lateral PressureJFriction Term (kp)
Soil Lateral Fraction (m)
Settlement Ratio
ADDmONAL LOADS fiE-x., &L.€... oR.. NO PA.v~6.,.r
live load AASHTQ H5-SERIES (HS-20)
Single Axle load = 32(kips), Double Axle - Load per Axle = 24(klps). Space = 4{ft)
Live load Distribution Factor = 1.75
No Surcharge Load Default I.F. per AASHTO Used.
Fluid Load (Iblft)
18
2.500
.... 0.10
1.00
120.0
Trench
4.00
0.1300
0.10
0.33
0.1500
0.10
0.70
110
FACTOR OF SAFETY
Factor of Safety on 0.01 Inch Crack D-Load (Earth,Live)
Factor of Safety on Ultimate Earth and Live load (ASTM C 76)
OL01 Less Than or Equal To 2000 IbsIMt
DL01 Grea1er Than or Equal To 3000 IbsIftIft
Dl.01 Between 2000 and 3000 IbsIftJIt
1.00 1.00
1.50
1.25
Interpolated
Date Printed: O1-feb-OllPipePac Version 3.1.01 Copyright C 1996-2004 OCPA, CCPA. ACPA
Page 1 of 4
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IPipe Earth Load Live ISurch Total BeddIng Required D-Load
Depth Arching >Trans Load Load Load LOId Factor 0.01 in.
Factor (Ibfft) (1bIft) {I bitt) (I") DL (lbIftIft)
0.10 1.01 Y 23 5908 0 ..1 2.03 1983 (CL-IV)
0.20 1.02 y 47 5340 0 5497 2.03 1804 (CL-IV)
0.30 1.02 Y 71 4776 0 4957 2.03 1627 (CL-IV)
0.40 1.03 Y 95 4682 0 4887 2.03 1604 (CL-IV)
0.50 1.04 Y 120 4591 0 4821 2.03 1582 (CL-IV)
0.60 1.05 Y 145 4504 0 4759 2.03 1582 (CL-IV)
0.70 1.()6 Y 170 4123 0 4403 2.03 1445 (CL-IV)
0.10 1.07 y 196 3730 0 4036 2.03 1325 (CL-III)
0.90 1.07 Y 222 3397 0 3729 2.03 1224 (CL-III)
1.00 1.08 Y 249 3110 0 3470 2.03 1139 (CL-III)
MOAD REQUIREMENTS FOR A 18 In. DIAMETER CIRCULAR PIPE
Results of Analysis for Bedding Type B
-4-
Selected Depth: 0.1 ft. (closest pipe depth : 0.1 ft)
Reinforced Pipe Classes forO.01 in. crack per ASTM C76 (lbffl:Ift):
CL 1<= 800; CL 11 <= 1000; ClllI <= 1350; CllV <= 2000; Class V <= 3000
Fluid Load(110 Ibslft) included in the calculation of the Total Load
0atlI Prtnted : 01-Feb-08PlpePac Version 3.1.01 Copyright ~ 1996-2004 OCPA. CCPA. ACPA
Page 2 of 4
Feb 01 08 01:03p
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972-459-7239
Pipe Analysis Report
Pipe Depth - The height of cover from the top of the pipe to the soil surface. m (ft).
Earth Load
Arching Factor - The ratio of the design soil load on the pipe to the load from the prism of soil immediately above
the pipe (prism load). By multiplying the soil prism load by the An:hing Factor, the Earth Load on the pipe will be
detennined. The Arching Factor is constant for Standard Installations in the positive projecting condition, but
variable for aU other bedding and installation conditions.
>Trans. (Applicable for Trench and Negative Projecting Conditions only) - When a trench or negative projecting
design is performed, the soil load above the pipe mayor may not be reduced by frictional forces between the insitu
and placed soiIs. depending on the depth and width of the trench. A symbol ofuy" is shown when the trench width
exceeds the width at which frictional forces reduce the soil load on the pipe (Yes, the transition width has been
exceeded, and the positive projecting design governs). A symbol of UN" is shown if frictional forces reduce the
load on the pipe (No, the trllnsition width has not been exceeded).
Load - The load in kN/m (Ibs/ft) imposed on the pipe from the soil.
Live Load - The load 00 the pipe resulting from a dynamic load at the surface, kN/m (lbs/ft).
Surcharge Load - The load in kN/m (lbslft) imposed on the pipe from surcharge loads such as buildings, stationary
equipment. etc. on the soil surface above the pipe.
Total Load - The summation of all the loads on the pipe. This would include when applicable; Earth Load +
Surcharge Load + Live Load + Fluid Load.
Note: Since the internal fluid load for a pipe is constant regardless of fill beight it is not listed in the table. When
the user chooses to consider fluid load, it is written below the table and included in the total load.
Bedding Factor
DL - The dead load bedding factor applied to the pipe at that depth. The higher the bedding factor, the greater the
support that is given to the pipe by the surrounding soil. This factor is divided by the Total Load for the B, C, and
D beddings only.
LL - The live load bedding factor applied to the pipe at that depth. The live load bedding factor accounts for
concentrated loads resulting from live loads over pipe with shallow cover. For the Type 1,2,3,4 and Jacking
Installations the Live Load is divided by the lower of this value or the DL value, and all other loads are summed up
and divided by the DL value.
Required I)..Load 0.3mm (0.01 in) - The load the pipe is required to support in the three-edge bearing test with a
crack equal to or less than 0.3 nun (0.01 in) which equates to the maximum stress induced on the pipe in the
installed condition. The load is given in kN (lbs) per m (ft) length of pipe per mm (ft) of diameter (or span for
noncircular pipe).
Required TEB-Load Ultimate - The load that the pipe is required to be able to support in the three--edge bearing test
prior to failure. The load is given in kN Obs) per m (ft) length of pipe.
Date Prlnted: 01-Feb-08PipePac Version 3.1.01 Copyrighl~ 1996-2004 CCPA. CCPA. ACPA
Page 3 of 4
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Feb 01 08 01:04p
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LIABILITY AGREEMENT
The successful application and use of this software product is dependent on the application
of skilled engineering judgement supplied by the user and/or their consultant. The user of
this software must select input values suitable to describe their specific engineering
situation. The infonnation presented in the computer output is for review, interpretation
application. and approval by a qualified engineer who must assume full responsibility for
verifying that aU output is appropriate and correct.
ANY IMPLIED OR EXPRESS WARRANTIES COVERING TIllS SOFTWARE
PROGRAM OR USER MANUAL INCLUDING ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE ARE
EXPRESSLY EXCLUDED.
GIFFELS ASSOCIATES LIMITED, the ONTARIO CONCRETE PIPE ASSOCIATION,
the CANADIAN CONCRETE PIPE ASSOCIA nON, the AMERICAN CONCRETE PIPE
ASSOCIA nON and TIlBEcON INC. shall not be held liable for any special. incidental,
consequential, indirect or other similar damages resulting from the use of this software.
Use of this program consitutes acceptance of this liability agreement by tile user.
0.. Printed: 01-Feb.08PipePac Version 3.1.01 Copyright" 1996-2004 OCPA, CCPA, ACPA
Page" of "
p.7
Feb 01 08 01:04p
barbara rose
972-459-7239
Three Edge Bearing Analysis - Results
Project Description J
Project Title: Analysis
Project location:
Contract Number:
Country: US
Units: English
Alternative: 18" RCP - 0.1' to 1.0' of fill
Consultant:
Contractor:
Analyzed By: HGM
Date: 04-Jan-08
Comply To; ASTM {AASHTO
D-LOAD REQUIREMENTS FOR A 18 in, DIAMETER CIRCULAR PIPE
PIPE DATA
Inner Diameter (in.)
WaIl'B' Thickness (in.)
fNSTAlLA TION CONDITIONS
Minimum Depth of Fill (ft)
Maximum Depth of Fill (ft)
Soil Density (Iblcu. ft)
Installation Type
Trench Width (ft)
Soil Lateral Pressure/Friction Term (klJ')
Parameters to compute Transition Width
Positive Projection Ratio
Soil Lateral Pressure Ratio
Soil Lateral PressurelFriction Term (k~)
Soil Lateral Fraction (m)
Settlement Ratio
ADDmONAllOADS
Live Load_~~~= '1'.~rbagnitude (kips)
Rigid Pavement: Thickness (in.)
Radius of Stiffness(in.)
Two Loads Spaced at (in.)
Vertical Surcharge (Iblsq. ft)
No Surcharge Load
Fluid Load (lblft)
FACTOR OF SAFETY
Factor of Safety on 0.01 Inch Crack D-Load (Earth,Live)
Factor of Safety on Ultimate Earth and Live Load (ASTM C 76)
DL.01 Less Than or Equal To 2000 Ibslftlft
DL.01 Greater Than or Equal To 3000 Ibslftlft
DL.01 Between 2000 and 3000 Ibslftlft
18
2.500
0.10
1.00
120.0
Trench
4.00
0.1300
0.10
0.33
0.1500
0.10
0.70
(,f> KtIs){"J f.14MC1'\ ~ ltJ. t Soak 21
6.0
22.26
72.0
," tlGfA At./~ 1Sl),c.f ~ 75.00
Date Printed: 01.Feb.oaPipePac Version 3.1.01 Copyright C 1996-2004 OCPA. CCPA, ACPA
110
1.00 1.00
1.50
1.25
Interpolated
Page 1 of 4
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Feb 01 08 01:04p
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D-LOAD REQUIREMENTS FOR A 18 in. DIAMETER CIRCULAR PIPE
Resulfll of Analy'" for BecIdIng Type B
---
Pipe Earth Load Live Surch Toml Bedding Required D-Load
Depth Arching >Trans Load Load Load Load Factor 0.01 in.
Factor (lbIft) (lbIft) (lbIft) (lbIft) DL (Ib/ftlft)
0.10 1.01 y 23 1122 144 1399 2.03 458 (CL-I)
--
0.20 1.02 Y 47 1121 144 1421 2.03 461 (CL-I)
0.30 1.02 Y 71 1119 144 1444 2.03 474 (CL-I)
0.40 1.03 Y 95 1118 144 1467 2.03 481 (CL-I)
0.50 1.04 Y 120 1116 144 1490 2.03 489 (CL-I)
0.60 1.05 Y 145 1114 144 1513 2.03 497 (CL-&)
0.70 1.06 Y 170 1113 144 1537 2.03 504 (CL")
0.80 1.07 Y 196 1109 144 1559 2.03 511 (CL-I)
0.90 1.07 Y 222 1102 144 1579 2.03 518 (CL-I)
1.00 1.08 Y 249 1096 144 1599 2.03 525 (eL-I)
Selected Depth: 0.1 ft. (closest pipe depth: 0.1 ft)
Reinforced Pipe Classes for 0.01 in. crack per ASTM C76 (lblftlft):
CL f <= 800; CL II <= 1000; CL III <= 1350; CL IV <= 2000; Class V <= 3000
Fluid Load(110 Ibslft) included in the calculation of the Total Load
oa18 Printed: O1-Feb-OlIPipePac Version 3.1.01 Copyright C 1996-2004 OCPA, CCPA. ACPA
Page 2 of 4
p.9
Feb 01 08 01:04p
barbara rose
972-459-7239
Pipe Analysis Report
Pipe Depth - The height of cover from the top of the pipe to the soil surface. m (ft).
Earth Load
Arching Factor - The ratio of the design soil load on the pipe to the load from the prism of soil immediately above
the pipe (prism load). By multiplying the soil prism load by the Arching Factor, the Earth Load on the pipe wiu be
determined. The Arching Factor is constant for Standard Installations in the positive projecting condition, but
variable for all other bedding and installation conditions.
>Trans. (Applicable for Trench and Negative Projecting Conditions only) - When a trench or negative projecting
design is perfonned, the soil load above the pipe mayor may not be reduced by frictional forces between the insitu
and placed soils, depending on the depth and width of the 1rench. A symbol of"Y" is shown when the trench width
exceeds the width at which frictional forces reduce the soil load on the pipe (Yes, the transition width has been
exceeded, and the positive projecting design governs). A symbol of "NI> is shown if frictional forces reduce the
load on the pipe (No, the transition width has not been exceeded).
Load - The load in kN/m (lbs/ft) imposed on the pipe from the soiL
Live Load - The load on the pipe resulting from a dynamic load at the surface, kN/m (Ibs/ft).
Surcharge Load - The load in kN/m Obslft) imposed on the pipe from surcharge loads such as buildings, stationary
equipment. etc. on the soil surface above the pipe.
Total Load - The summation of all the loads on the pipe. This would include when applicable; Earth Load +
Surcharge Load + Live Load + Fluid Load.
Note: Since the internal fluid load for a pipe is constant regardless offill height it is not listed in the table. When
the user chooses to consider fluid load, it is written below the table and included in the total load.
Bedding Factor
DL - The dead load bedding factor applied to the pipe at that depth. The higher the bedding factor, the greater the
support that is given to the pipe by the surrounding soil. This factor is divided by the Total Load for the B. C, and
D beddings only.
LL - The live load bedding factor applied to the pipe at that depth. The live load bedding factor accounts for
concentrated loads resulting from live loads over pipe with shallow cover. For the Type 1.2.3, 4 and Jacking
installations the Live Load is divided by the lower of this value or the DL value, and all other loads are summed up
and divided by the DL value.
Required D-Load O.3mm (0.0 I in) - The load the pipe is required to support in the three-edge bearing test with Ii
crack equal to or less than 0.3 rom (O.ot in) which equates to the maximum stress induced on the pipe in the
installed condition. The load is given in kN (lbs) per m (ft) length of pipe per rom (ft) of diameter (or span for
noncircu1ar pipe).
Required TEB-Load Ultimate - The load that the pipe is required to be able to support in the three.-edge bearing test
prior to failure. The load is given in kN (Ibs) per m (ft) length of pipe.
Date Printed: 01.Feb-08PIpePac Version 3.1.01 Copyright C 1996.2004 OCPA, CCPA, ACPA
Page30f 4
p. 10
Feb 01 08 01:05p
barbara rose
972-459-7239
LIABILITY AGREEMENT
The successful application and use oftbis software product is dependent on the application
of skilled engineering judgement supplied by the user andlor their consultant. The user of
this software must select input values suitable to describe their specific engineering
situation. The information presented in the computer output is for review, interpretation
application, and approval by a qualified engineer who must assume full responsibility for
verifying that all output is appropriate and correct.
ANY IMPLIED OR EXPRESS WARRANTIES COVERING TIllS SOFTWARE
PROGRAM OR USER MANUAL INCLUDING ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE ARE
EXPRESSLY EXCLUDED.
GIFFELS ASSOCIATES LIMITED, the ONTARIO CONCRETE PIPE ASSOCIATION,
the CANADIAN CONCRETE PIPE ASSOCIA nON, the AMERICAN CONCRETE PIPE
ASSOCIATION and TUBECON INC. sball not be held liable fOf any special, incidental,
consequential, indirect or other similar damages resulting from the use of this software.
Use of this program consitutes acceptance of this liability agreement by the user.
Date PrInted: 01.Feb-08PipePac Version 3.1.01 Copyright 0 1996-2004 OCPA, CCPA. ACPA
Page 4 of 4
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