Search results with tag "Horizontal directional drilling"
Appendix 3: Explanation of different drilling/piling rig ...
www.hse.gov.ukHorizontal directional drilling (HDD) rigs These are a form of trenchless technology gaining in popularity due to the ability to insert utilities pipes without the need to excavate along the route. Pipelines of over 1m diameter can be installed by large HDD rigs using multiple passes to ream out an initial small diameter hole. Whilst it is
Overview of Interstate Hydrogen Pipeline Systems
www.corridoreis.anl.govHDD horizontal directional drilling MTU master terminal unit NGA Natural Gas Act NOx nitrogen oxides PM10 particulate matter of 10 micrometers in diameter or smaller ROW(s) right(s)-of-way RTU remote terminal unit SCADA supervisory control and data acquisition SO2 sulfur dioxide TAPS Trans-Alaska Pipeline System
Best Practices for Tracer Wire System Installation
kcc.ks.govBest Practices - Products Tracer Wire Horizontal Directional Drilling & Plowing Installation 12 AWG American Made CCS Tracer Wire with a minimum break load of 1,150 lbs. Multiple 8 AWG Solid Copper Tracer Wire with a minimum break load of …
Offshore Wind Submarine Cabling Overview
www.nyserda.ny.govFigure 27. Horizontal Directional Drilling (HDD) Operations 21 Figure 28. Image Showing Preparations for Pulling the Export Cable into the HDD Duct 21 Figure 29. Image Showing Preparations for Pulling the Export Cable into a Plow 22 Figure 30. Cable Repair Joint with External Cable Protection 23 Figure 31.
SPECIFICATIONS & GUIDELINES - Caltrans
dot.ca.govtunneling, horizontal directional drilling, or pipe-ramming). When the distance between the tunnel and an existing structure is less than twenty times its diameter, it ... issued, upon completion of the normal review process (Traffic, Environmental, R/W, etc.). 4
Chapter 14 - Duct and Conduit - plastic pipe
plasticpipe.orgprocess used to manufacture conduit, have been HDPE and PVC (polyvinylchloride). ... It was the introduction of trenchless installation methods, such as horizontal directional drilling (HDD) and pull or chute plowing that significantly contributed to the wider adoption of HDPE conduits. When coupled with the HDPE conduit’s long reel lengths,
Trenchless Methods for Service and Mainline Pipe Rehab and ...
www.gastechnology.org4/23/2013 2 Trenchless New Installation Main and Service Line Three Primary New Installation Trenchless Options Available: • HDD –Horizontal Directional Drilling
Horizontal Directional Drilling - plastic pipe
plasticpipe.orgHorizontal Directional Drilling Process Knowledge of the directional drilling process by the reader is assumed, but some review may be of value in establishing common terminology. Briefly, the HDD process begins with boring a small, horizontal hole (pilot hole) under the crossing
Horizontal Directional Drilling - Plastics Pipe Institute
plasticpipe.orgChapter 12 Horizontal Directional Drilling 422 Background Some of the earliest uses of large diameter PE pipe in directional drilling were for river crossings.
Horizontal Directional Drilling - iscopipe
www.isco-pipe.comChapter 12 Horizontal Directional Drilling 415 the PE pipe. Typically, the bore-head is tracked electronically so as to guide the hole to a pre-designed confi guration.
Directional Boring Safety - Missouri Common Ground Alliance
www.mocommonground.orgDefinition •Directional boring, commonly called horizontal directional drilling or HDD, is a steerable trenchless method of installing underground
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