ARMY UFGS-31 68 13-2008 SOIL AND ROCK ANCHORS《固定式岩锚》.pdf

1、USACE / NAVFAC / AFCESA / NASA UFGS-31 68 13 (November 2008)-Preparing Activity: USACE (CW) SupersedingUFGS-31 68 13 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION TABLE OF CONTENTSDIVISION 31 - EARTHWORKSECTION 31 68 13SOIL AND R

2、OCK ANCHORS11/08PART 1 GENERAL1.1 UNIT PRICES1.1.1 Drilling Holes in Soil1.1.1.1 Payment1.1.1.2 Measurement1.1.1.3 Unit of Measure1.1.2 Drilling Holes in Rock1.1.2.1 Payment1.1.2.2 Measurement1.1.2.3 Unit of Measure1.1.3 Soil Rock Anchors1.1.3.1 Payment1.1.3.2 Measurement1.1.3.3 Unit of Measure1.1.4

3、 Performance Tests1.1.4.1 Payment1.1.4.2 Measurement1.1.4.3 Unit of Measure1.1.5 Proof Tests1.1.5.1 Payment1.1.5.2 Measurement1.1.5.3 Unit of Measure1.1.6 Creep Tests1.1.6.1 Payment1.1.6.2 Measurement1.1.6.3 Unit of Measure1.1.7 Soil Rock Anchors, Complete1.1.7.1 Payment1.1.7.2 Measurement1.1.7.3 Un

4、it of Measure1.1.8 Watertightness Testing1.1.8.1 Payment1.1.8.2 Measurement1.1.8.3 Unit of Measure1.1.9 Pregrouting HolesSECTION 31 68 13 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.1.9.1 Payment1.1.9.2 Measurement1.1.9.3 Unit of Measure1

5、1.10 Redrilling Grouted Holes1.1.10.1 Payment1.1.10.2 Measurement1.1.10.3 Unit of Measure1.2 REFERENCES1.3 DEFINITIONS1.4 SYSTEM DESCRIPTION1.4.1 General Requirements1.4.2 Scope of work1.4.3 Anchor Design1.5 SUBMITTALS1.6 QUALITY ASSURANCE1.6.1 Designer Qualifications1.6.2 Fabricator Qualifications

6、1.6.3 Installer Qualifications1.6.4 Core Logging and Soil Sampling1.7 DELIVERY, STORAGE, AND HANDLING1.8 SITE CONDITIONSPART 2 PRODUCTS2.1 MATERIALS2.1.1 Prestressing Steel2.1.1.1 High-Strength Steel Bars2.1.1.2 Epoxy-Coated Steel Bars2.1.1.3 Steel Bar2.1.1.4 Strand2.1.1.5 Compact Strand2.1.1.6 Epox

7、y Coated Strand2.1.2 Structural Steel2.1.3 Steel Pipe2.1.4 Steel Tube2.1.5 Ductile Iron Castings2.1.6 Polyethylene Tubing2.1.6.1 Smooth Polyethylene Tubing2.1.6.2 Corrugated Polyethylene Tubing2.1.7 Smooth Polypropylene Tubing2.1.8 Polyvinyl Chloride (PVC) Pipe2.1.9 Polyvinyl Chloride (PVC) Tubing2.

8、1.9.1 Smooth Polyvinyl Chloride (PVC) Tubing2.1.9.2 Corrugated Polyvinyl Chloride (PVC) Tubing2.1.10 Heat Shrinkable Sleeve2.1.11 Corrosion Inhibiting Compound2.2 MANUFACTURED UNITS2.2.1 Anchor Head2.2.2 Prestressing Steel Couplers2.2.3 Centralizers and Spacers2.2.4 Casing2.2.5 Anchorage Covers2.3 E

9、QUIPMENT2.3.1 Drilling Equipment2.3.2 Grouting Equipment2.3.2.1 Grout Mixer2.3.2.2 Grout Pump2.3.3 Stressing Equipment2.3.4 Testing EquipmentSECTION 31 68 13 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.4 GROUT2.4.1 Cement2.4.2 Water2.4.3

10、Aggregates2.4.4 Admixtures.2.4.5 Grout for Anchors2.4.5.1 Cement Grout2.4.5.2 Polyester Resin Grout2.4.6 Sand-Cement Grout2.4.7 Grout for Anchor Pads2.5 TENDON FABRICATION2.5.1 General2.5.2 Tendon2.5.3 Bond Breaker2.5.4 Vent Tubes2.5.5 Grout Tubes2.5.6 Corrosion Protection2.5.6.1 Anchorage Protectio

11、n2.5.6.2 Free Stressing Length Encapsulation2.5.6.3 Bond Length Encapsulation2.6 TESTS, INSPECTIONS, AND VERIFICATIONSPART 3 EXECUTION3.1 DRILLING HOLES3.1.1 General3.1.2 Drilling Through Existing Structures3.1.3 Drilling In Soil3.1.4 Casing3.1.5 Drilling in Rock3.1.6 Records3.1.7 Alignment3.1.7.1 T

12、olerances3.1.7.2 Alignment Check3.1.7.3 Alignment Checking Equipment3.1.8 Watertightness Testing3.1.9 Waterproofing Anchor Holes3.2 INSTALLATION OF ANCHORS3.2.1 General3.2.2 Placing3.2.3 Resin Grouted Anchors3.2.4 Cement Grouted Rock Anchors3.2.5 Grouting of Soil Anchors3.2.5.1 General3.2.5.2 Gravit

13、y Grouting3.2.5.3 Pressure Grouting3.2.5.4 Post-Grouting3.2.6 Anchorage Installation3.3 STRESSING3.3.1 General Requirements3.3.2 Lock-off3.4 FIELD QUALITY CONTROL3.4.1 General3.4.2 Performance Test3.4.3 Proof Test3.4.4 Supplementary Extended Creep Test3.4.5 Driller Logs3.4.6 Anchor Records3.5 ACCEPT

14、ANCESECTION 31 68 13 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.5.1 General3.5.2 Replacement of Rejected Anchors- End of Section Table of Contents -SECTION 31 68 13 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitt

15、ed without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-31 68 13 (November 2008)-Preparing Activity: USACE (CW) SupersedingUFGS-31 68 13 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated October 2008*SECTION 31 68 13SOIL AND ROCK ANCHORS11/08

16、NOTE: This guide specification covers the requirements for soil and rock anchors.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 requiremen

17、ts 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 telephon

18、e number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).This guide specification includes tailoring options for PRESCRIPTIVE and PERFORMANCE specifications. Selection or deselection of a tailoring option will include or exclude that option in

19、 the section, but editing the resulting section to fit the project is still required. Editing will be simplified if the tailoring option is selected first.*PART 1 GENERAL*NOTE: This specification is based on, and references, the POST-TENSION INSTITUTE (PTI) recommendations for prestressed rock and s

20、oil anchors. The PTI manual is available from:POST-TENSIONING INSTITUTE.1717 W. NORTHERN AVE., SUITE 114SECTION 31 68 13 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PHOENIX, AZ 85021 U.S.APHONE: (602) 870-7540 FAX: (602) 870-7541The designe

21、r should carefully investigate the PTI document to ensure that the design conforms to PTI requirements and that conflicts do not occur between the referenced document and this specification. In the event deviations from the PTI recommendations are necessary, the specification must be edited to clear

22、ly identify such deviations. For unusual conditions, the designer should also consult SPECIALTY ContractorRS during the design process.Rock and soil anchors may be used for temporary support or for permanent support. This specification must be carefully edited to reflect the design parameters applic

23、able for the intended durability.For projects requiring specialized methods or experience, particularly those which are primarily for installation of soil or rock anchors, consideration should be given to using a REQUEST FOR PROPOSAL (RFP) Method of procurement instead of an INVITATION FOR BIDS (IFB

24、) Method. Use of RFP permits evaluation of offers on technical criteria in addition to price.This guide specification is written for new construction where the anchor is installed after the structure is completed or for installing anchors in existing structures. Where the anchors must be installed a

25、nd/or stressed prior to completion of the structure additional requirements will be necessary. Where pre-installation is required, means must be taken to protect the anchor components during the subsequent construction of the structure. If the anchors are to be stressed prior to completion of the st

26、ructure, it may be necessary to stress the anchors against casings or other structures and transfer the load to the structure upon completion of construction.Where the design of the structure to be anchored requires that the anchors be installed and stressed prior to construction of the new structur

27、e (i.e. where a new anchored wall is to be constructed to protect or support an existing wall which is not capable of resisting stressing loads), the anchors may be stressed against casings or a waler or thrust blocks may be used to distribute the load. In this case, the casing and rock socket must

28、be designed to prevent deflection or excessive pulling of the casing into the rock during stressing. The design of the casing and rock socket must be included in the design computations. The casing must be seated into the rock socket and remain in place after grouting of the anchors.SECTION 31 68 13

29、 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Monitoring of stressing should include monitoring of movement of the casing.Where anchors must be installed prior to construction of the new structure, the Contractor must adequately protect the

30、anchor components during subsequent construction.The following sentence should be included in paragraph FIELD QUALITY CONTROL, subparagraph GENERAL when the conditions apply or when stressing and testing the anchor is expected to cause significant movement of the structure such as:a. Highly loaded a

31、nchors within the top 1.5 meters (5 feet) of the structureb. High test loads on passive anchorsc. Anchors designed to support future loads which are much higher than current loads“Stressing for performance and proof and extended creep tests shall be by a method which does not induce any stressing lo

32、ads on the existing structure“*1.1 UNIT PRICES*NOTE: If Section 01 22 00.00 10 MEASUREMENT AND PAYMENT is included in the project specifications, this paragraph title (UNIT PRICES) should be deleted from this section and the remaining appropriately edited subparagraphs below should be inserted into

33、Section 01 22 00.00 10.*1.1.1 Drilling Holes in Soil*NOTE: This payment item will be used only when a prescriptive specification is desired. It will be deleted when a performance specification is desired.*1.1.1.1 PaymentPayment will be made for costs associated with Drilling Holes in Soil.1.1.1.2 Me

34、asurementDrilling Holes in soil will be measured for payment to the nearest 300 mm foot, based upon the meters linear feet of hole actually drilled in soil in accordance with the specifications.SECTION 31 68 13 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without licens

35、e from IHS-,-,-1.1.1.3 Unit of MeasureUnit of measure: meter linear foot.1.1.2 Drilling Holes in Rock*NOTE: This payment item will be used only when a prescriptive specification is desired. It will be deleted when a performance specification is desired.*1.1.2.1 PaymentPayment will be made for costs

36、associated with Drilling Holes in Rock.1.1.2.2 MeasurementDrilling Holes in Rock will be measured for payment to the nearest 300 mm foot, based upon the meters linear feet of hole actually drilled in rock in accordance with the specifications.1.1.2.3 Unit of MeasureUnit of measure: meter linear foot

37、1.1.3 Soil Rock Anchors*NOTE: This payment item will be used only when a prescriptive specification is desired. It will be deleted when a performance specification is desired.*1.1.3.1 PaymentPayment will be made for costs associated with furnishing and installing Soil Rock Anchors. No payment will

38、be made for anchors which do not meet the acceptance criteria.1.1.3.2 MeasurementSoil Rock Anchors will be measured for payment to the nearest 300 mm foot, based upon the meters linear feet of anchor actually installed below the bearing plate in accordance with the specifications.1.1.3.3 Unit of Mea

39、sureUnit of measure: meter linear foot.1.1.4 Performance Tests1.1.4.1 PaymentPayment will be made for costs associated with performing Performance Tests on anchors which are accepted.SECTION 31 68 13 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-

40、1.1.4.2 MeasurementPerformance Tests will be measured based upon the number of tests performed.1.1.4.3 Unit of MeasureUnit of measure: each.1.1.5 Proof Tests1.1.5.1 PaymentPayment will be made for costs associated with performing Proof Tests on anchors which are accepted.1.1.5.2 MeasurementProof

41、 Tests will be measured based upon the number of tests performed on anchors which are accepted in accordance with the specifications.1.1.5.3 Unit of MeasureUnit of measure: each.1.1.6 Creep Tests1.1.6.1 PaymentPayment will be made for costs associated with performing Creep Tests on anchors which are

42、 accepted. No payment will be made for creep tests on anchors which do not meet the acceptance criteria.1.1.6.2 MeasurementPerformance Tests will be measured based upon the number of tests performed on anchors which are accepted in accordance with the specifications.1.1.6.3 Unit of MeasureUnit of me

43、asure: each.1.1.7 Soil Rock Anchors, Complete*NOTE: This payment item will be used only when a performance specification is desired. It will be deleted when a prescriptive specification is desired.If significant variation in length and/or type of anchors is anticipated, separate payment items should be considered for different ranges in anchor length.*1.1.7.1 PaymentPayment will be made for costs associated with furnishing and installing Soil Rock Anchors, Complete which are accepted. The price shall include installation of anchors and proof tes