1、*USACE / NAVFAC / AFCESA / NASA UFGS-33 05 23.13 (November 2013)-Preparing Activity: NASA SupersedingUFGS-33 05 23.13 (February 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in Agreement with UMRL dated October 2013*SECTION TABLE OF CONTENTSDIVISION 33 - UTILITIESSECTION 33 05 23.13UTIL
2、ITY HORIZONTAL DIRECTIONAL DRILLING11/13PART 1 GENERAL1.1 REFERENCES1.2 SUBMITTALS1.3 COMMENCEMENT, DELIVERY, STORAGE, AND HANDLING OF MATERIALS1.4 QUALITY ASSURANCE1.4.1 Qualifications1.4.2 SafetyPART 2 PRODUCTS2.1 EQUIPMENT2.1.1 Drill Rod2.1.2 Pipe2.2 MATERIALS2.2.1 Drilling FluidsPART 3 EXECUTION
3、3.1 INSTALLATION3.1.1 Drill Set-Up3.1.2 Drill Entrance and Exit Pits3.1.3 Drill Entrance and Exit Angle3.1.4 Pilot Hole3.1.5 Guidance Systems3.1.6 Reaming3.1.7 Pull Back3.1.8 Connection of Product Pipe to Pipeline3.2 FIELD QUALITY CONTROL3.3 CLOSEOUT ACTIVITIES- End of Section Table of Contents -SEC
4、TION 33 05 23.13 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-33 05 23.13 (November 2013)-Preparing Activity: NASA SupersedingUFGS-33 05 23.13 (February 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferen
5、ces are in Agreement with UMRL dated October 2013*SECTION 33 05 23.13UTILITY HORIZONTAL DIRECTIONAL DRILLING11/13*NOTE: This guide specification covers the requirements for directional drilling systems, equipment, piping and procedures.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (
6、UFGS) Format Standard when editing this guide specification or preparing new project specification sections. 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
7、 information and requirements not required in respective project, whether or not brackets are present.Comments, suggestions and recommended changes for this guide specification are welcome and should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph i
8、s 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, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside
9、 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.SECTION 33 05 23.13 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
10、-,-References not used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of this specification to the extent referenced. The publications are referre
11、d to within the text by the basic designation only.AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)AASHTO T 180 (2010) Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) DropU.S. NATIONAL ARCHIVES AND RECORD
12、S ADMINISTRATION (NARA)29 CFR 1926.652 Safety and Health Regulations for Construction; Subpart P, Excavations; Requirements for Protective Systems1.2 SUBMITTALS*NOTE: Review Submittal Description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only th
13、e submittals required for the project.The Guide Specification technical editors have designated those items that require Government approval, due to their complexity or criticality, with a “G.“ Generally, other submittal items can be reviewed by the Contractors Quality Control System. Only add a “G”
14、 to an item, 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 three characters within the submittal tags may be used following the “G“ designation to indicate the approving authority. Codes
15、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 District Office); “AO“ for Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically
16、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 projects.*SECTION 33 05 23.13 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
17、,-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 Governmen
18、t. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:SD-01 Preconstruction SubmittalsStatement of Qualifications and Records; G; G, _SD-02 Shop DrawingsRecord Drawings; G; G, _SD-03 Product DataPolyethylene Pipe; G; G, _Drilling Fluids; G; G, _Additives; G; G, _Mixtures;
19、G; G, _SD-05 Design DataMaterial Safety Data Sheets; G; G, _SD-06 Test ReportsSoil Test Data; G; G, _SD-07 CertificatesDrill Rod; G; G, _SD-11 Closeout SubmittalsComplete Work Logs of Guided Directional Drill Operations; G; G, _1.3 COMMENCEMENT, DELIVERY, STORAGE, AND HANDLING OF MATERIALSPrior to c
20、ommencement of the work, submit the following to the Engineer of Record for review and approval:a. Polyethylene Pipeb. Material Safety Data Sheetsc. Statement of Qualifications and Recordsd. Soil Test DataProvide written documentation of conformance with AASHTO T 180. Submit a complete list of all d
21、rilling fluids, additives, and mixtures to be used along with Material Safety Data Sheets.SECTION 33 05 23.13 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Inspect materials delivered to the site for damage. All materials found during inspect
22、ion or during the progress of work to have cracks, flaws, surface abrasions, or other defects will be rejected. Remove defective materials from the job site.1.4 QUALITY ASSURANCE1.4.1 QualificationsEnsure that Contractor and his field supervisor assigned to this project are experienced in work of th
23、is nature and have successfully completed similar projects of similar length, pipe type, pipe size, and soil type using directional drilling in the last three (3) years. As part of the bid submission, submit a description of such project(s) which include, at a minimum, a listing of the location(s),
24、date of project(s), owner, pipe type, size installed, length of installation, type, and manufacturer of equipment used, and other information relevant to the successful completion of the project.1.4.2 SafetyInclude in directional drilling equipment machine safety requirements a common grounding syst
25、em to prevent electrical shock in the event of underground electrical cable strike. Ensure the grounding system connects all pieces of interconnecting machinery; the drill, mud mixing system, drill power unit, drill rod trailer, operators booth, worker grounding mats, and any other interconnected eq
26、uipment to a common ground. Equip the drill with an “electrical strike“ audible and visual warning system that notifies the system operators of an electrical strike.PART 2 PRODUCTS2.1 EQUIPMENT2.1.1 Drill RodSelect the appropriate drill rod to be used. Submit certified statement that the drill rod h
27、as been inspected and is in satisfactory condition for its intended use.2.1.2 PipeInstall a 25.4 cm 10-inch (nominal)_ diameter polyethylene pipe, with a dimensions ratio of 11 (DR11)_2.2 MATERIALS2.2.1 Drilling FluidsDisposal of fluids is the responsibility of the Contractor. Dispose of fluids in a
28、 manner that is in compliance with all permits and applicable Federal, State, and local regulations. The Contractor may dispose of the drilling fluids on approved land owned by the Government subject to written approval from the Contracting Officer. Spread the drilling slurry over the Government-app
29、roved disposal area and plow into the soil.Use a high quality bentonite_ drilling fluid to ensure hole stability, cuttings transport, bit and electronics cooling, and hole SECTION 33 05 23.13 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-lubr
30、ication to reduce drag on the drill pipe and the product pipe. Use only fluid with a composition which complies with all Federal, State, and local environmental regulations.Mix the bentonite_ drilling fluid with potable water (of proper pH) to ensure no contamination is introduced into the soil duri
31、ng the drilling, reaming, or pipe installation process. The Contractor is responsible for any required pH adjustments.Disposal of the drilling fluids is the responsibility of the Contractor. Conduct disposal in compliance with all relative environmental regulations, right-of-way and work space agree
32、ments, and permit requirements.Collect drilling fluid returns in the entrance pit, exit pit, or spoils recovery pit. Immediately clean up any drilling fluid spills or overflows from these pits.PART 3 EXECUTION3.1 INSTALLATIONEnsure all utilities are located and clearly marked prior to start of excav
33、ation or drilling.3.1.1 Drill Set-UpDesign and construct the drill entrance and exit pits.3.1.2 Drill Entrance and Exit PitsDrill entrance and exit pits are required. Maintain at minimum size to allow only the minimum amount of drilling fluid storage prior to transfer to mud recycling or processing
34、system or removal from the site.Do not allow drilling mud to flow freely on the site or around the entrance or exit pits. Remove spilled mud and restore ground to original condition. Provide shore pits in compliance with OSHA Standards, 29 CFR 1926.652.When drilling near wetlands or water courses, p
35、rovide secondary containment to prevent drilling fluids from entering the wetlands, and secure written approval of secondary containment plan from the Contracting Officer.3.1.3 Drill Entrance and Exit AngleEnsure entrance and exit angles and elevation profile maintains adequate cover to reduce risk
36、of drilling fluid breakouts and ground exit occurs as specified herein. Ensure that entrance and exit angles generate pullback forces that do not exceed 5_ percent strain on the polyethylene_ pipe.3.1.4 Pilot HoleThe type and size of the pilot string cutting head and the diameter of the drill pipe i
37、s at the Contractors discretion.Drill the pilot hole along the path shown on the plan and profile drawings. Pilot hole tolerances are as follows:SECTION 33 05 23.13 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a. Vertical Tolerance: Provide
38、minimum cover below channel bottom as specified on the plans. Pilot hole may go deeper if necessary to prevent breakout.b. Horizontal Tolerance: Plus/minus - 152.4 cm 60-inches _ from the centerline of the product pipe.c. Curve Radius: No curve is acceptable with a radius less than 304.8 m1,000-feet
39、.d. Entry Point Location: Make pilot hole entry point within plus/minus - 152.4 cm 60-inches _ of the location shown on the drawings or as directed by the Contracting Officer in the field.e. Exit Point Location: Make the exit point location within plus/minus - 152.4 cm 60-inches _ of the location sh
40、own on the drawings or as directed by the Contracting Officer in the field.f. Mandatory pipeline cover requirements are as shown on the drawings or as specified.3.1.5 Guidance SystemsWalkover guidance systems are not acceptable for this project; use a magnetic survey tool locator installed behind th
41、e pilot string cutting head and an electric grid (tru-tracker) system for this project.3.1.6 ReamingConduct reaming operations at the Contractors discretion. Determine the type of back reamer to be utilized by the type of subsurface soil conditions that are encountered during the pilot hole drilling
42、 operation. The reamer type is at the Contractors discretion.3.1.7 Pull BackFully assemble the entire pipeline to be installed via direction drill prior to commencement of pull back operations.Support the pipeline during pullback operations in a manner to enable it to move freely and prevent damage.
43、 Install the pipeline in one continuous pull.Minimize torsion stress by using a swivel to connect the pull section to the reaming assembly.Maximum allowable tensile force imposed on the pull section is not to exceed 90_ percent of the pipe manufacturers safe pull (or tensile) strength. If the pull s
44、ection is made up of multiple pipe size or materials, the lowest safe pull strength value governs and the maximum allowable tensile force is not to exceed 90_ percent of this value.Minimize external pressure during installation of the pullback section in the reamed hole. Replace damaged pipe resulti
45、ng from external pressure at no cost to the Government. Buoyancy modification is at the discretion of the Contractor.SECTION 33 05 23.13 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.1.8 Connection of Product Pipe to PipelineAfter the product pipe has been successfully installed, allow the product pipe to recover for 24 hours prior to connection of the pipeline. Ensure that a sufficient length of the product pipe has been pulled through the hole so that the pull-nose i
