ARMY UFGS-31 62 23 13-2008 CAST-IN-PLACE CONCRETE PILES STEEL CASING《现场浇注混凝土桩 钢套管》.pdf

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1、*USACE / NAVFAC / AFCESA / NASA UFGS-31 62 23.13 (November 2008)-Preparing Activity: USACE SupersedingUFGS-31 62 23 13 (October 2007)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION TABLE OF CONTENTSDIVISION 31 - EARTHWORKSECTION 31 62 23.13CAST

2、-IN-PLACE CONCRETE PILES, STEEL CASING11/08PART 1 GENERAL1.1 MEASUREMENT AND PAYMENT PROCEDURES1.1.1 Unit Price1.1.2 Full Compensation1.1.3 Load Tests1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 Subsurface Soil Data1.3.2 Equipment1.3.2.1 Pile Hammers1.3.2.2 Driving Helmets and Pile Cushions1.4 SUBMITTA

3、LSPART 2 PRODUCTS2.1 MATERIALS2.1.1 Concrete2.1.2 Reinforcement2.1.3 Casings2.1.3.1 Uniform Taper2.1.3.2 Step-Taper2.1.3.3 Constant Section2.1.3.4 Combination TypePART 3 EXECUTION3.1 INSTALLATION3.1.1 Driving Pile Casings3.1.1.1 Driving Procedure3.1.1.2 Tolerance in Driving3.1.1.3 Jetting of Pile Ca

4、sings3.1.2 Filling of Casings3.1.3 Cutting of Casings3.1.4 Welding3.1.5 SplicingSECTION 31 62 23.13 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 FIELD TESTS AND INSPECTIONS3.2.1 Test Piles3.2.1.1 Pile Driving3.2.1.2 Load Tests3.2.2 Concr

5、ete Testing3.3 SPECIAL INSPECTION AND TESTING FOR SEISMIC-RESISTING SYSTEMS- End of Section Table of Contents -SECTION 31 62 23.13 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-31 62 23.13 (November 2008)-

6、Preparing Activity: USACE SupersedingUFGS-31 62 23 13 (October 2007)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION 31 62 23.13CAST-IN-PLACE CONCRETE PILES, STEEL CASING11/08*NOTE: This guide specification covers the requirements for procuremen

7、t, installation, and testing of cast-in-place concrete piles utilizing steel casing.Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirem

8、ents not required in respective project, whether or not brackets are present.Comments and suggestions on this guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designation and teleph

9、one number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL1.1 MEASUREMENT AND PAYMENT PROCEDURESBids will be based on the number of piles as indicated, and on lengths from tip to cutoff as follows:Number of piles Length, meters

10、 feet_ _ _From the data obtained as a result of driving the test piles and load tests specified hereinafter, the Government will determine and will list the “calculated“ pile tip elevations and the driving resistances for all piles. This list will be used as the basis for ordering piles. Payment SEC

11、TION 31 62 23.13 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-will be on the basis of length of piling from cutoff elevation to final tip elevation, established by the requirements specified elsewhere in this section. Should the total number

12、 of piles or the number of each length vary from that specified as the basis for bidding, an adjustment on the contract price and the time for completion will be made. If excavation is made adjacent to piling and below the grade indicated and if piling is driven before backfilling of over-excavation

13、, no payment will be made for the length of piling equal to the depth of the over-excavation. No additional payment will be made for cutting off piles, for any portion of a pile remaining above cutoff elevation, or for broken, damaged, or rejected piles.1.1.1 Unit PriceThe Contracting Officer reserv

14、es the right to increase or decrease the total length of piles to be furnished and installed, by changing the foundation pile locations or elevations, requiring the installation of additional piles, or requiring omission of piles from the requirements shown and specified. Whether or not such changes

15、 are made, payment will be made at the contract unit price per linear meter foot(including control test piles), multiplied by the total linear meters feet of acceptable piles actually installed.1.1.2 Full CompensationPayment in accordance with the above paragraph, “Unit Price,“ will constitute full

16、compensation for furnishing, delivering, handling, and/or installing (as applicable) all material, labor and equipment necessary to meet contract requirements applicable to the foundation piles. No payment will be allowed for withdrawn, broken or rejected piles, nor (except for control test piles) f

17、or a portion of any pile remaining above the cut-off point.1.1.3 Load TestsThe contract includes _ pile load tests. The Contracting Officer reserves the right to increase or decrease the number of pile tests. Adjustments in the contract price will be made for such increases or decreases by the amoun

18、ts bid for “Additional Pile Load Test“ or “Omitted Pile Load Test.“1.2 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in this paragraph by organization, d

19、esignation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizards Check Reference feature to update the issue dates.References not us

20、ed in the text will automatically SECTION 31 62 23.13 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-be deleted from this section of the project specification when you choose to reconcile references in the publish print process.*The publicatio

21、ns listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.AMERICAN WELDING SOCIETY (AWS)AWS D1.1/D1.1M (2008) Structural Welding Code - SteelASTM INTERNATIONAL (ASTM)ASTM A 252 (1998; R 2007) Standard Sp

22、ecification for Welded and Seamless Steel Pipe PilesASTM D 1143/D 1143M (2007) Piles Under Static Axial Compressive LoadNATIONAL READY MIXED CONCRETE ASSOCIATION (NRMCA)NRMCA QC 3 (2002) Quality Control Manual: Section 3, Plant Certifications Checklist: Certification of Ready Mixed Concrete Producti

23、on Facilities1.3 SYSTEM DESCRIPTIONPerform the work through a general Contractor or a specialty subcontractor specialized in the specified foundation system and having experience installing the specified foundation system under similar subsurface conditions.1.3.1 Subsurface Soil DataSubsurface soil

24、data logs are shown on the drawings in the specifications. The subsurface investigation reports and samples of materials as taken from subsurface investigations are available for examination at _.1.3.2 Equipment1.3.2.1 Pile HammersProvide a hammer having a delivered energy suitable for the total wei

25、ght of the pile, the character of subsurface material to be encountered, and the pile capacity to be developed. The driving energy of the hammer shall be not less than _ newton-meters foot-pounds.1.3.2.2 Driving Helmets and Pile CushionsUse a driving helmet, cap block, and pile cushion between the t

26、op of the pile and the ram to prevent impact damage to the pile and capable of protecting the head of the pile, minimizing energy absorption and dissipation, and transmitting hammer energy uniformly over the top of the pile. The driving helmet shall fit loosely around the top of the pile so that the

27、 pile is not restrained if the pile tends to rotate during SECTION 31 62 23.13 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-driving. The pile cushion and cap block may be of solid wood or of laminated construction using plywood, softwood, or

28、 hardwood boards or other cushion material as approved by the Contracting Officer. The pile cushion shall completely cover the top surface of the pile and shall be retained by the driving helmet. The minimum thickness of the pile cushion and of the cap block shall be 76.2 mm 3 inches each and the th

29、ickness shall be increased so as to be suitable for the size and length of pile, character of subsurface material encountered, hammer characteristics, and required driving resistance.1.4 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit

30、the following list to reflect only the submittals required for the project. Submittals should be kept to the minimum required for adequate quality control.A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only d

31、elete an existing “G” if the submittal item is not complex and can be reviewed through the Contractors Quality Control system. Only add a “G” if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to

32、 three characters within the submittal tags may be used following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the

33、District Office); “AO“ for Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army pro

34、jects.*Government approval is required for submittals with a “G“ designation; submittals not having a “G“ designation are for Contractor Quality Control approval.information only. When used, a designation following the “G“ designation identifies the office that will review the submittal for the Gove

35、rnment. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-02 Shop DrawingsInstallationDrawings demonstrating compliance of driving equipment and steel casing with contract documents. Include in the drawings shop and SECTION 31 62 23.13 Page 6Provided by IHSNot for Resa

36、leNo reproduction or networking permitted without license from IHS-,-,-erection details, casing details, end closures, splices, driving helmets, and reinforcement.SD-03 Product DataDriving Pile CasingsA complete and accurate record of each driven pile, within 3 days of completion of driving. Indicat

37、e in the record the pile location (as driven), driven length, embedded length, final elevations of tip and top, pile weight, butt and tip diameter, quantity and strength of concrete used in each pile, number of splices and locations, blows required for each meter foot of penetration throughout the e

38、ntire length of the pile and for the final 150 mm 6 inches of penetration, and the total driving time. Also include jn the record the type and size of the hammer used, the rate of operation, and the type and dimensions of driving helmet, pile cushion, and cap block used. Record any unusual condition

39、s encountered during pile installation and immediately report to the Contracting Officer.EquipmentDescriptions of all pile driving equipment to be employed in the work, prior to commencement of pile installations, including details of the pile hammer, power plant, leads, pile cushion, cap block, and

40、 helmet.SD-06 Test ReportsTest Piles.A complete report on the load test, within seven _ days of completion of load test, including, but not limited to, a description of the pile driving equipment, driving records for both test piles and reaction piles, complete test data, analysis of test data, and

41、recommended allowable design loads based on the load test results. The report shall be prepared by or under the direct supervision of a registered professional engineer experienced in pile load testing and load test analysis.PART 2 PRODUCTS2.1 MATERIALS2.1.1 Concrete*NOTE: Delete or modify second se

42、ntence when the job is small or the existence of certified plants is beyond acceptable distance of small jobs. Insert the ultimate compressive strength required by design.*Conform materials, mixing, and placing of concrete to the requirements of Section 03 31 00.00 10 CAST-IN-PLACE STRUCTURAL CONCRE

43、TE. Ready-mix plant equipment and facilities shall be certified in accordance with NRMCA QC 3. Minimum compressive strength at 28 days shall be_ MPa psi. Maximum coarse aggregate size shall be 19 mm 3/4 inch.SECTION 31 62 23.13 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitt

44、ed without license from IHS-,-,-2.1.2 Reinforcement*NOTE: Reinforcement should be required for the unsupported sections of piles, for uplift or tension piles, for piles exposed to high bending stresses not resisted by batter piles, and for anchoring the top of the pile to the pile cap or slab. Tensi

45、on or uplift piles shall be reinforced throughout their entire length.*Conform materials, assembly, and placement of reinforcement to the requirements of Section 03 31 00.00 10 CAST-IN-PLACE STRUCTURAL CONCRETE. Assemble and place reinforcement in the casing as a unit as detailed and scheduled.2.1.3 Casings*