ARMY UFGS-31 32 23-2008 FOUNDATION DRILLING AND GROUTING《桩基钻孔和灌浆》.pdf

1、USACE / NAVFAC / AFCESA / NASA UFGS-31 32 23 (August 2008)-Preparing Activity: USACE (CW) SupersedingUFGS-31 32 23 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION TABLE OF CONTENTSDIVISION 31 - EARTHWORKSECTION 31 32 23FOUNDATION DRIL

2、LING AND GROUTING08/08PART 1 GENERAL1.1 UNIT PRICES1.1.1 Mobilization and Demobilization1.1.1.1 Payment1.1.1.2 Unit of Measure1.1.2 Drilling Grout Holes1.1.2.1 Payment1.1.2.2 Measurement1.1.2.3 Unit of Measure1.1.3 Drilling Drain Holes1.1.3.1 Payment1.1.3.2 Measurement1.1.3.3 Unit of Measure1.1.4 Dr

3、illing Exploratory Holes1.1.4.1 Payment1.1.4.2 Measurement1.1.4.3 Unit of Measure1.1.5 Pressure Washing and Pressure Testing1.1.5.1 Payment1.1.5.2 Measurement1.1.5.3 Unit of Measure1.1.6 Steel Pipe and Fittings1.1.6.1 Payment1.1.6.2 Measurement1.1.6.3 Unit of Measure1.1.7 Portland Cement in Grout1.1

4、7.1 Payment1.1.7.2 Measurement1.1.7.3 Unit of Measure1.1.8 Pozzolans (Fly Ash) in Grout1.1.8.1 Payment1.1.8.2 Measurement1.1.8.3 Unit of Measure1.1.9 Sand in Grout1.1.9.1 PaymentSECTION 31 32 23 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-

5、1.1.9.2 Measurement1.1.9.3 Unit of Measure1.1.10 Fluidifier in Grout1.1.10.1 Payment1.1.10.2 Measurement1.1.10.3 Unit of Measure1.1.11 Bentonite in Grout1.1.11.1 Payment1.1.11.2 Measurement1.1.11.3 Unit of Measure1.1.12 Placing Grout1.1.12.1 Payment1.1.12.2 Measurement1.1.12.3 Unit of Measure1.1.13

6、Connections to Grout Holes1.1.13.1 Payment1.1.13.2 Measurement1.1.13.3 Unit of Measure1.2 REFERENCES1.3 DEFINITIONS1.3.1 Zone1.3.2 Section1.3.3 Stage1.3.4 Stop1.3.5 Split Spacing1.4 SYSTEM DESCRIPTION1.5 SUBMITTALS1.6 DELIVERY, STORAGE, AND HANDLING1.7 PROJECT/SITE CONDITIONSPART 2 PRODUCTS2.1 GROUT

7、ING MATERIAL2.1.1 Water2.1.2 Cement2.1.3 Pozzolans2.1.4 Admixtures2.1.5 Fluidifier2.1.6 Bentonite2.1.7 Sand2.2 METAL PIPE AND FITTINGS2.2.1 Pipe2.2.2 FittingsPART 3 EXECUTION3.1 EQUIPMENT3.1.1 General3.1.2 Drilling Equipment3.1.3 Grouting Equipment3.2 GROUT, DRAINAGE AND EXPLORATORY HOLES3.2.1 Pipe

8、for Foundation Grouting and Drainage3.2.2 Grout Hole Drilling3.2.3 Drain Hole Drilling3.2.4 Completion of Grouting and Drain Hole Drilling3.2.5 Exploratory Hole Drilling3.3 PROCEDURES FOR DRILLING AND GROUTING3.3.1 General3.3.2 Stage GroutingSECTION 31 32 23 Page 2Provided by IHSNot for ResaleNo rep

9、roduction or networking permitted without license from IHS-,-,-3.3.2.1 Primary Holes3.3.2.2 Successive Holes3.3.2.3 Completion of Section3.3.3 Stop Grouting3.3.4 Pressure Washing and Pressure Testing3.3.5 Stage Grouting Procedures3.3.5.1 First Stage3.3.5.2 Second Stage3.3.6 Stop Grouting Procedures3

10、3.6.1 Stop Grouting of Grout Holes3.3.6.2 Grouting of Existing Exploratory Holes3.3.7 Grouting Pressures3.3.8 Grouting3.3.8.1 Grout Mixes3.3.8.2 Grout Injection3.3.8.3 Backfilling of Holes3.3.8.4 Equipment Arrangement and Operation3.3.8.5 Protection to Work and Cleanup3.3.9 Records3.3.10 Communicat

11、ions- End of Section Table of Contents -SECTION 31 32 23 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-31 32 23 (August 2008)-Preparing Activity: USACE (CW) SupersedingUFGS-31 32 23 (April 2006)UNIFIED FAC

12、ILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2008*SECTION 31 32 23FOUNDATION DRILLING AND GROUTING08/08*NOTE: This guide specification covers the requirements for drilling exploratory holes; drilling drain holes; drilling, washing and pressure testing grout holes; mak

13、ing grout connections; furnishing, handling, transporting, storing, mixing and injecting the grouting materials; patching the finished grout holes; care and disposal of drill cuttings, waste water and waste grout; clean-up grout galleries and shafts and areas upon completion of the work and all such

14、 other operations as are incidental to the drilling and the grouting.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 requirements not requir

15、ed 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 telephone number, is

16、on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: This guide specification has been prepared as a section in a general construction specification for concrete dams. By rewording as necessary, this specification may be adapted t

17、o other types of foundation treatment, such as under power plants, locks, cutoff trenches, tunnels, and others.SECTION 31 32 23 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Methods for listing subdivided items are described in Paragraph 52.2

18、/9109(g) “Variations in Estimated Quantities - Subdivided Items“ of Engineer Federal Acquisition Regulation Supplement (EFARS). However, effectiveness of the use of subdivided items in grouting has been questioned as being more hazardous than helpful and that the standard variations in quantity clau

19、se should be used.Provisions are made for the use of a sanded grout but should generally be limited to those formations where quantities in excess of one cubic foot of grout per linear foot of hole are anticipated. The information contained in EM 1110-2-3506, “Grouting Technology“ and EM 1110-2-1302

20、 “Cost Estimates - Government Estimate of Fair and Reasonable Cost to Contractor“ should be used as a guide in estimating quantities.Computer Application of Geotechnical Engineering (CAGE):a. The CAGE Grouting Task Group has developed a microcomputer program for documentation of grouting operations

21、 and graphics for rapid display of data for better field control. Some of the highlights of the program include optional data entry by a laptop or hand held computer in the field, technical review and quality control, preparation of Contractors pay schedules, and preparation of foundation reports. T

22、he Users Guide “Microcomputer Grouting Data Package (Multiple Zone and Stage Version for PC and Hand Held Computer)“ is available from the U.S. Army Engineer Waterways Experiment Station (USACE-WES-GL). Use of this CAGE package will not require contractual or technical additions to the contract spec

23、ifications unless the computer equipment, other facilities, or personnel for data entry are to be Contractor supplied. In such case the proper provisions should be included. This program is also an attractive tool for use in grouting operations by Corps of Engineers personnel. Use of this program sh

24、ould be strongly considered for any grouting operation.b. Computer-aided control and monitoring of the grout injection has recently been used by the U.S. Bureau of Reclamation (USBR) on several of their projects. Their system is appropriate for use on large grouting projects. Use of their system wil

25、l necessitate certain contractual and technical additions to the specifications which are not included in this guide specification. If interested in this type system for a large grout program more information can be obtained by contacting the CAGE grout task group and the USBR.Chemical or other spec

26、ialty grouting applications SECTION 31 32 23 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-have not been specifically addressed in this guide specification as most of the CE grouting in rock foundations for concrete structures, cutoff trenche

27、s, locks and powerhouses use cement grout. However, the specification may be used as a general outline for chemical or other specialty grouting applications by insertion of the proper equipment, materials, and procedures in the appropriate paragraphs and by modification and deletion of other paragra

28、phs. Engineer Manuals 1110-2-3504, “Chemical Grouting“, and 1110-2-3506, “Grouting Technology“, should be used as guides when the use of chemical grouts and other specialty grouting applications are being considered. The manufacturer of those systems that meet the potential job requirements should b

29、e contacted for verification. Also, consideration should be given to conducting laboratory and field tests and evaluations of the system or systems being considered for a given applications. There may be occasions when the engagement of a consultant would be appropriate and advantageous to assist in

30、 the planning, selecting, and evaluating of a system under consideration. Engineer Manual 1110-2-2901, “Tunnels and Shafts in Rock“, should be referred to when planning tunnel grouting and the guide specification for Tunnel and Shaft Grouting should be used in the preparation of project specificatio

31、ns.If grouting is anticipated during extreme temperatures, alteration of certain field procedures may be necessary and should be included in the specifications. Generally, for cold weather grouting, the grout should be maintained at temperatures above 50 degrees F until injected, and storage of the

32、grouting materials should be at temperatures above freezing. Temperature controls for grouting surface rocks should be specified based on specific site conditions anticipated. Insulation, heated enclosures, water heaters or other equipment or procedures may be required. Grouting in extremely hot wea

33、ther may also require extra precautions.*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 inse

34、rted into Section 01 22 00.00 10.*SECTION 31 32 23 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.1.1 Mobilization and Demobilization1.1.1.1 PaymentPayment will be made for costs for assembling all plant and equipment at the site, preparator

35、y to initiating the work and for removing it therefrom when the drilling and grouting program has been completed. Sixty (60) percent of the contract lump-sum price for mobilization and demobilization will be paid following completion of moving onto the site, including complete assembly, in working o

36、rder, of all equipment necessary to perform the required drilling and grouting operations. The remaining forty (40) percent of the contract lump-sum price will be paid when all equipment has been removed from the site.1.1.1.2 Unit of MeasureUnit of measure: lump sum.1.1.2 Drilling Grout Holes*NOTE:

37、Delete the bracketed phrase if pay item “Pressure Washing and Pressure Testing“ is retained as a pay item.*1.1.2.1 PaymentPayment will be made for costs associated with drilling and redrilling grout holes; washing and pressure testing of grout holes; care and disposal of waste water and waste grout;

38、 clean-up of the site; furnishing, handling, transporting and storing of grout materials; and for furnishing all labor and supplies incidental to the work. This price is subject to the cost limitation imposed by Section 31 32 23 FOUNDATION DRILLING AND GROUTING, paragraph PIPE FOR FOUNDATION GROUTIN

39、G AND DRAINAGE, but only in those locations where pipe is specified. No payment will be made for grout, or the material constituents thereof, wasted due to improper anchorage of grout pipe or connections, or which is wasted due to negligence on the part of the Contractor, nor for grout which is reje

40、cted by the Contracting Officer because of improper mixing. Payment will be made at the applicable contract unit prices for materials contained in grout which are wasted, where the wasting is not due to negligence on the part of the Contractor.1.1.2.2 MeasurementDrilling of grout holes will be measu

41、red for payment on the basis of the linear feet of holes actually drilled in concrete or rock, as shown or as directed, including all intermediate holes at locations where pipe was not installed.1.1.2.3 Unit of MeasureUnit of measure: linear meter foot.SECTION 31 32 23 Page 7Provided by IHSNot for R

42、esaleNo reproduction or networking permitted without license from IHS-,-,-1.1.3 Drilling Drain Holes1.1.3.1 PaymentPayment will be made for costs associated with drilling of drain holes actually drilled in concrete or rock, as shown or as directed. This price is subject to the cost limitation impose

43、d by Section 31 32 23 FOUNDATION DRILLING AND GROUTING, paragraph PIPE FOR FOUNDATION GROUTING AND DRAINAGE.1.1.3.2 MeasurementDrilling of drain holes will be measured for payment on the basis of the linear meter feet of holes actually drilled in concrete or rock, as shown or as directed.1.1.3.3 Uni

44、t of MeasureUnit of measure: linear meter foot.1.1.4 Drilling Exploratory Holes*NOTE: If a portion of exploratory drilling is to be done through overburden, a separate pay item should be included for this portion.*1.1.4.1 PaymentPayment will be made for costs associated with drilling of exploratory

45、holes.1.1.4.2 MeasurementDrilling of exploratory holes will be measured for payment on the basis of the linear meters feet of holes actually drilled in concrete or rock, as directed by the Contracting Officer.1.1.4.3 Unit of MeasureUnit of measure: linear meter foot.1.1.5 Pressure Washing and Pressure Testing1.1.5.1 PaymentPayment will be m