TR-46: Guidelines for Use of Mini-Horizontal Directional Drilling for

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Transcript of TR-46: Guidelines for Use of Mini-Horizontal Directional Drilling for

  • 105 Decker Court, Suite 825, Irving, TX 75062 P: 469-499-1044 F: 469-499-1063 www.plasticpipe.org Copyright, The Plastics Pipe Institute, Inc. 2009

    Guidelines for Use of Mini-Horizontal Directional Drilling for Placement of High

    Density Polyethylene Pipe

    TR-46

    2009 Prepared by: Dr. Larry Slavin Member of the HDPE Municipal Advisory Board Outside Plant Consulting Services, Inc. (OPCS) 15 Lenape Avenue, Rockaway, NJ 07866-1019 for The Plastics Pipe Institute

  • 105 Decker Court, Suite 825, Irving, TX 75062 P: 469-499-1044 F: 469-499-1063 www.plasticpipe.org Copyright, The Plastics Pipe Institute, Inc. 2009

    FOREWORD

    Guidelines for Use of Mini-Horizontal Directional Drilling for Placement of High Density Polyethylene Pipe

    This report was developed and published with the technical help of the members of the PPI (Plastics Pipe Institute, Inc.). The members have shown their interest in quality products by assisting independent standards-making and user organizations in the development of standards, and also by developing reports on an industry-wide basis to help engineers, code officials, specifying groups, and users.

    The purpose of this technical report is to provide important information available to PPI on a particular aspect of polyethylene pipe butt fusion to engineers, users, contractors, code officials, and other interested parties. More detailed information on its purpose and use is provided in the document itself.

    This report has been prepared by PPI as a service of the industry. The information in this report is offered in good faith and believed to be accurate at the time of its preparation, but is offered without any warranty, expressed or implied, including WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Consult the manufacturer for more detailed information about the particular joining procedures to be used with its piping products. Any reference to or testing of a particular proprietary product should not be construed as an endorsement by PPI, which does not endorse the proprietary products or processes of any manufacturer. The information in this report is offered for consideration by industry members in fulfilling their own compliance responsibilities. PPI assumes no responsibility for compliance with applicable laws and regulations.

    PPI intends to revise this report from time to time, in response to comments and suggestions from users of the report. Please send suggestions of improvements to the address below. Information on other publications can be obtained by contacting PPI directly or visiting the web site.

    The Plastics Pipe Institute, Inc.

    http://www.plasticpipe.org

    This Technical Report, TR-46, was first issued in December 2009.

    http://www.plasticpipe.org/

  • Guidelines for Use of Mini-Horizontal Directional Drilling for Placement of

    High Density Polyethylene Pipe

    Table of Contents

    1. Scope ..................................................................................................................................... 5

    2. Referenced Standards and Specifications ............................................................................. 6

    3. Terminology .......................................................................................................................... 6

    4. Preliminary Site Investigation ............................................................................................. 114.1 General Considerations ............................................................................................ 114.2 Existing Belowground Utilities ................................................................................ 124.3 Surface Investigation ................................................................................................ 124.4 Subsurface Investigation ........................................................................................... 134.5 Non-HDD Situations ................................................................................................ 15

    5. Safety and Environmental Considerations .......................................................................... 165.1 General Considerations ............................................................................................ 165.2 Safety Training ......................................................................................................... 165.3 Work Clothing .......................................................................................................... 175.4 Machine Safety ......................................................................................................... 175.5 Electrical Strike ........................................................................................................ 185.6 Natural Gas Line Strike ............................................................................................ 195.7 Damage to Existing Utilities .................................................................................... 195.8 Environmental .......................................................................................................... 195.9 Proficiency ................................................................................................................ 20

    6. Regulations and Damage Prevention .................................................................................. 216.1 General Considerations ............................................................................................ 216.2 Locating and Marking .............................................................................................. 226.3 Tolerance Zone ......................................................................................................... 236.4 Subsurface Utility Engineering ................................................................................. 24

    7. Pipe Design and Selection Considerations .......................................................................... 247.1 Objectives ................................................................................................................. 257.2 Minimum Wall Thickness Based upon Depth .......................................................... 267.3 Minimum Wall Thickness Based upon Pulling Load ............................................... 277.4 Results ...................................................................................................................... 317.5 Comments ................................................................................................................. 32

    8. Bore Path Planning and Drill Rig Setup ............................................................................. 328.1 General Considerations ............................................................................................ 338.2 Steering & Drill Rod Constraints ............................................................................. 34

  • - 4 -

    8.3 Product Pipe Constraints .......................................................................................... 358.4 Bore Path Profile (Vertical Plane) ............................................................................ 358.5 Bore Route (Horizontal Plane) ................................................................................. 44

    9. Implementation ................................................................................................................... 479.1 Drill Rig Positioning ................................................................................................ 479.2 Pilot Bore .................................................................................................................. 479.3 Drilling Fluid Usage ................................................................................................. 489.4 Tracking and Steering ............................................................................................... 499.5 Records ..................................................................................................................... 509.6 Reaming .................................................................................................................... 519.7 Connecting the Product Pipe .................................................................................... 529.8 Handling the Pipe ..................................................................................................... 539.9 Potential Causes of Failure or Problems .................................................................. 549.10 Containment of Inadvertent Drilling Fluid Returns ................................................. 54

    10. Completion ........................................................................................................................ 5510.1 Inspection ................................................................................................................. 5510.2 Pipe Testing .............................................................................................................. 5510.3 Site Cleanup ............................................................................................................. 5510.4 Certified Record (As-Built) Drawings .................................................................. 55

    APPENDICES ......................................................................................................................... 57A. Drill Rod Bending or Steering Capability ........................................................................ 57B. Maximum Allow