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Horizontal Directional Drilling - an overview | ScienceDirect Topics %PDF-1.6 % HDPE Pipe Installation Methods - An Overview of 6 Common Methods The first stage drills a pilot hole on the designed path, and the second stage (reaming) enlarges the hole by passing a larger cutting tool known as the back reamer. FIGURE 1 illustrates the operation in a city or urban application. COPYING AND DISTRIBUTING ARE PROHIBITED WITHOUT PERMISSION OF THE PUBLISHER. 3), PR-277-144507-Z01 Installation of Pipelines by Horizontal Directional Drilling Engineering Design Guide (Arlington, VA: Pipeline Research Council We are not only a product manufacturer, also a solution provider, whether you have a Question or Request For Quotations, we're here to help. At the "maxi" end of the range, several loads of equipment are typically shipped to site and the site area required is a significant consideration. To determine HDPE pipe performance during and following construction, linear displacement transducers, strain gauges, and a temperature probe . hb```i|@Y8Ldhp`iPpgpg#LK:pt2&55/a?aOJ3h13(81dU 8vk& 47kQK\ V'Pj{r e7*fp7D ~aKr+dXi-@%q[cqSxj'VJmxj U[z'. <<32159D5C8C60A744B61AE13533FBF1FA>]>> On inaccessible projects such as river crossings or where the bore is at significant depth and where a surface receiver cannot be used, the drilling head location information is typically sent from the drill bit by a wireline system, via a wire running along the inside of the drill rods. Pipefusion provides high density polyethylene pipe, on-site fusion services, fittings and much more to Directional Drilling contractors across Ontario. These pipelines can not only provide a design life of 100 years, but also provide solutions to major industry challenges such as corrosion and high leakage rates. International, Inc., 2015, pg. All material subject to strictly enforced copyright laws. The plastics pipe industry is a strategic industry, where hardware needs to be reliable for extended periods of time. It is also important to identify areas of poor or difficult ground, such as gravel and cobbles, which could allow the drilling mud to escape or create bore instability unless an appropriately engineered drilling mud can be used. HDD | Horizontal Directional Drilling | Pipe Line Road Crossing Now Available: ASTM Guide for Use of Maxi-HDD Placing HDPE Pipe Under Obstacles. %PDF-1.6 % [3], The process is suitable for a variety of soil conditions including clay, silt, sand, and rock. Software tools are based on the ASTM F1962 document and model. 0000000936 00000 n PDF Pr9788 - Specification for Horizontal Directional Drilling - Unitywater Typical Maxi-HDD Operation (Courtesy of Murphy Pipeline Contractors), FIGURE 2. Horizontal Directional Drilling - Plastic Pipe Horizontal Directional Drilling or HDD, is a steerable trenchless method of installing underground pipe, conduit, or cable in a shallow arc along a prescribe. 0000019257 00000 n MAB-08 (2022) - MAB Guidelines for Fusing HDPE Pipe in Cold and Inclement Weather, Horizontal Directional Drilling Estimating Pipe Pulling Tensions, Dr. Lawrence M. Slavin, Aug 2022. He can be reached at lslavin@ieee.org. Because the operator of the drilling rig might not notice a momentarily excessive pulling force, a load link inserted between the swivel and the PE100 pipe to record pulling load can be used to record the maximum axial load exerted on the pipe. Which Method to Use When Estimating Maxi-HDD Installation Loads- ASTM F1962 or the PRCI Method. For direct comparison, two instrumented 200mm SDR-17 DIPS HDPE pipes were . See also Excavations, pit sizes, Space and Access. [4], The equipment used in directional boring depends on the length of the (proposed) crossing, the pipe properties (of the to-be-installed pipeline), and the (anticipated) subsurface conditions. To obtain pressure in psi, multiply bar by 14.5 (1 bar 14.5 psi). Joints in traditional piping materials are the biggest source of leakage. Whilst the drilling equipment is able to drill down from the surface at the start and come back up to the surface at the exit, there does need to be an excavation at each end to act as a sump for drilling fluid reclamation, but the most critical factor is to provide the space to transfer the new pipe from ground level down to the bore, and this will depend upon both the diameter and length of the installed pipe. PIPE REAMING - TECHNIQUE This is the basis of MAB-7 (2020), MAB Guidelines for Use of Mini-Horizontal Directional Drilling for Placement of HDPE (PE4710) Pipe in Municipal Applications, as referenced in the 2022 edition of ASTM F1962. Directional boring tooling includes the suite of drill bits or drill heads used during pilot hole operations, reamers and hole-openers used for hole enlargement, and swab tools which are used for hole conditioning and pullback. Once the User enters the required Input data and clicks Calculate, 0000002230 00000 n q$mO9-Dbqbv(ln!1*YDt=.7 Polyethylene pipe is the pipe of choice for trenchless installations using directional drilling. It is important to properly use the drilling fluid for the initial pilot bore and reaming operations, and to accurately locate and track the bore path. The output of the Calculator can be used to assist the User in The pipe string is attached to the back-reamer through a swivel device. It has a wide range of applications and is not affected by water currents, climate and environment. In the absence of ballast, the maximum total calculated tension will typically occur towards the end of the installation; e.g., at point C or D. The net resulting peak tensile stress is required to be less than the safe pull tensile stress of the HDPE pipe. The third stage places the product or casing pipe in the enlarged hole by way of the drill stem; it is pulled behind the reamer to allow centering of the pipe in the newly reamed path. Horizontal drilling or Utility Installation Directional Drilling, minimizes environmental impact and is often used when trenching or excavating is not a practical or viable option. This method is regularly used on distribution systems, which typically use small diameter mains, and on rural distribution systems it often enables mains to be installed alongside the carriageway without impeding traffic flow, as the drilling equipment is compact and self contained. ASTM International F1962, Standard Guide for Use of Maxi-Horizontal Directional Drilling for Placement of Polyethylene Pipe or Conduit Under Obstacles, Including River Crossings, provides recommended procedures for the placement of PE pipe using maxi-HDD. HDPE pipe are widely used for trenchless sewer lateral replacement. That is, the soil is being cut and or removed under the influence of high pressure fluid. Drilling uids are designed to match the soil and cutter. The methodology of advancement also varies somewhat between soil and rock crossings. The Conduit Design Calculator automates the Mini-HDD calculations described in PPI TR-46 Guidelines for Use of Mini-Horizontal Directional Drilling for Placement of High Density Polyethylene Pipe. For situations with burial depths or bore lengths beyond what the 1.1 Pipe Approved materials for HDD include: medium-density polyethylene (MDPE), high-density polyethylene (HDPE), steel, fusible PVC, restrained joint PVC, and ductile iron pipe. [citation needed], PR-277-144507-Z01 Installation of Pipelines by Horizontal Directional Drilling Engineering Design Guide (Arlington, VA: Pipeline Research Council Generally, the term Horizontal Directional Drilling (HDD) is intended to describe large/maxi sized drilling rigs, large diameter bores, and crossing lengths in terms of thousands of feet. ((H`|JSgy>_)gk]f2%a!gS0qF&)0C@WF%`cJ!Q8x`1f'H#\oe5MaKR28(.n3Z1CUjGTC+o0kBJ0N t-A K:Xyd89EtL}vfAhdQ;>!E@y@}[hE_8 . The pipe must be appropriately aligned with the bore and at an appropriate bending radius to avoid any risk of kinking. Image Courtesy:Exova Utilities, Pipe coil trailer loaded with 100metres of 180mm PE pipe. Safety is a primary concern, during any activity, including construction utilizing maxi-HDD equipment and procedures. Directional boring and HDD are similar in some respects to directional drilling associated with the oil industry, however, an equal comparison cannot be drawn as the procedures serve markedly different functions. Why Do HDD Contractors Use Polyethylene Pipe? | American Directional Boring These plastic pipes offer a new generation of leak-proof, maintenance-free, and energy-efficient pipeline systems that are chemical- and abrasion-resistant and therefore excellent for use in the lining and relining of pipelines, slurry applications, water reticulation, sewer and stormwater systems, the mining industry, and in dolomite areas. Although the TR-46 guidelines are primarily intended for mini-HDD operations, depending on the particular project, the information may also be applicable to a midi-HDD installation. cut-and-cover and horizontal directional drilling (HDD) techniques are used to install utility pipes under flexible pavements. Contact us today for a free quote. Lawrence Slavin, Ph.D., provides outside plant consulting services as a member of IEEE, the worlds largest technical professional organization dedicated to advancing technology for the benefit of humanity. The route planning should include subsurface investigations/survey to identify ground conditions, so that appropriate equipment can be selected. 0000017340 00000 n Pipe entry point is at the opposite end of the drill rig location, which coincides with the pipe exit.. Since uncontrolled drilling can lead to damage, different agencies/government authorities owning the urban right-of-way or the utilities have rules for safe work execution. where the drilling proceeds from left to right. Welcome customers to visit the factory, or third party factory inspection is acceptable. One of the significant contributions of ASTM International F1962 is the provision of a rational, analytical method for selecting the polyethylene pipe strength based upon the estimated installation and post-installation (operational) loads on the polyethylene pipe. The HDPE pipe chosen for the twin sewage tunnels has an outside diameter of 740mm and an internal diameter of 600mm, with a standard dimensional ratio (SDR) of 11 and a pressure rating of 16 bars. [2], Directional boring/HDD is generally accomplished in three principal phases. Horizontal drilling, one type of directional drilling, is a method that is used to install pipes, conduits and cables underground in a long shallow arc. Chapter 12 Horizontal Directional Drilling 416 borehole on pullback. Horizontal Directional Drilling (HDD) Horizontal Directional Drilling (HDD) is often used to install HDPE pipe in situations where an obstacle, either above ground or below the surface, does not allow traditional installation methods to be used. Certain users require weak links that fail before the pipe if overload occurs but this will result in a partly installed pipe with no means of completing the installation without major disruption, cost and delay. Other specifications have not been shown on our dimension chart, please CONTACT US for more information, Buried polyethylene (PE) pipes for gaseous supply, Bingo HDPE Pipes use in the fields of aquaculture, Bingo Pipeline provides customized solutions for cooper mine, HDPE Pipes Used for Innovative Water Collection System in Landfill to Protect Environment, High density polyethelyne (HDPE) pipe for Massive Desalination Plant project. Drilling fluid may escape to the surface or other facilities unless carefully managed. ABOUT THE AUTHOR: Lawrence Slavin, Ph.D., provides outside plant consulting services as a member of IEEE, the worlds largest technical professional organization dedicated to advancing technology for the benefit of humanity. During pull-in of the pipe a load link should be inserted between the swivel and the pipe to show and record the axial load applied. Potential safety issues fall into two general categories: Although not considered to be hazardous materials, the proper handling and disposal of drilling fluid is also discussed to avoid possible environmental issues. Experience: Actively engaged in horizontal directional drilling for minimum of 3 years. This phenomenon is referred to as the capstan effect, as it is the principle of the capstan winch, as illustrated in. International, Inc., 2015, pg. Thus, FIGURE 2 shows the drilling operation proceeding from right to left, in contrast to FIGURE 1, where the drilling proceeds from left to right. was originally approved in 1999, following development within the ASTMs F17.67 Trenchless Technology Subcommittee. %%EOF Because trenchless technology greatly reduces the need for invasive excavations, it has a much smaller impact on the surrounding environment, both ecologically and socially. The ASTM document provides overall guidelines for a maxi-HDD operation, addressing preliminary site investigation; safety and environmental considerations, regulations and damage prevention; bore path layout and design; implementation; and inspection and site cleanup. Recycled water pipeline completed in Encinitas, Calif. This technique involves drilling a pilot bore, generally along a closely defined shallow arc, and then, if necessary, enlarging the bore using a reamer or hole opener to create a bore large enough to accept the new PE100 pipe, which is generally pulled in behind a reamer. 0000029623 00000 n Broken water pipe in Jackson, Miss., leaks 5 million gallons per day, Much of Florida Keys loses water pressure after main break, Texas lawmakers prepare to set aside billions to upgrade states aging water system, Job Complications Lead To AXIS System Solution, $3 million grant funding broadband internet installation in rural Michigan communities, Rewiring Floridas Intracoastal Movable Bridges Via HDD. Soils containing high percentage of gravel and cobbles are best avoided unless the contractor is especially experienced in the conditions. New York, NY: ASME, 2008. We have a full line of products to suit your HDD needs. D2dIFya 0000020409 00000 n The mud motor is powered by the drilling mud pumped through the drilling rods. As the name denotes, trenchless technology requires few or no trenches to be dug for the maintenance work to be done and can be defined as, A family of methods, materials, and equipment capable of being used for the installation of new or replacement or the rehabilitation of existing underground infrastructure.. Pipeline design for installation by horizontal directional drilling -, Skonberg, Eric R., and Tennyson M. Muindi. ASCE Pipelines 2014. The reamer's diameter depends on the size of the pipe to be pulled back through the bore hole. with relatively shallow entry and exit angles, the associated load amplification due to this effect is not major; although for more complex paths, the effect could be very important. This method applies tension to the PE100 pipe during installation. Table X3.1 provides the critical collapse pressure for HDPE/PE4710 pipes as a function of load duration and wall thickness. The drill is launched from one end of the designed bore path and retrieved at the other end, and except for the launch and retrieving spaces above ground, the entire process takes place underground .