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HORIZONTAL DIRECTIONAL DRILLING --- RISK ASSESSMENT --- Ron Halderman, PE Director HDD Mears Group PERILS OF HDD UNDERGROUND WHERE WE CAN’T SEE TO PLAN, DESIGN, USE OR APPROVE HORIZONTAL DIRECTIONAL DRILLING, YOU MUST UNDERSTAND HOW IT WORKS THERE ARE REALLY ONLY TWO BASIC TYPES OF INSTALLATION METHODS REGULARLY USED IN TRENCHLESS TECHNOLOGY TO INSTALL PIPES OR PIPELINES UP TO ABOUT 48” IN DIAMETER …  PIPE JACKING OR MICROTUNNELING  Which doesn’t require an oversized hole  HORIZONTAL DIRECTIONAL DRILLING  Which does require an oversized hole  HDD CAN GO FARTHER AND IS NEARLY ALWAYS CHEAPER IF FEASIBLE BASIC HDD EQUIPMENT:  Drilling rig  power control module  Drilling cab  Mud mixing tank  Mud cleaning equipment  Centrifuge  Mud pump  Pipe handling equipment  Miscellaneous things TYPICAL RIG SIDE LAYOUT TYPICAL PIPE SIDE LAYOUT BASIC HDD OPERATIONS  DRILLING THE PILOT HOLE  ENLARGING (PRE-REAMING) THE PILOT HOLE  CLEANING THE REAMED HOLE  PULLING A PIPELINE INTO THE CLEANED HOLE

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horizontal directional drilling, you must understand how it works there are really only two basic types of steering tool with intersection capability

Horizontal Directional Drilling - AASHTO PDF

34 Pages·2015·2.95 MB·English

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horizontal directional drilling, you must understand how it works there are really only two basic types of steering tool with intersection capability

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Author:	Unknown
Publication Year:	2015
Pages:	34
Language:	English
File Size:	2.95
Format:	PDF
Price:	FREE

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