Pipe bursting is a technology that has matured in North America since the early 2000s. Although this technology has been proven internationally and more so domestically, there are many common myths and/or misconceptions that exist in regards to the technology and its practical application. In January 2012, the IPBA released a guideline for pipe bursting that provides support and reference to the items discussed in this article.
A new breed of pipeline “pig” has arrived in the United States.
“Pigging” to clean pipelines is an accepted procedure used by utility pipeline owners. The process is relatively simple: a device (pig) is inserted into a pipe where pressure forces it through the pipe, scraping the inside sidewalls and carrying debris to an exit point out of the pipe. A variety of pig designs are available.
Since the inception of horizontal directional drilling (HDD) in the late 1970s, there have been remarkable advances in the technology and equipment that serves the trenchless construction industry. The equipment in the early 1980s was basic and not designed specifically for HDD, nor was it particularly reliable.
Underground Construction’s 2013 census of large horizontal directional drilling contractors is an effective tool when selecting the right size of drill rig to fit specific project needs in managing a successful HDD operation.
The power supply for Virginia's densely populated Middle Peninsula Area, on the Chesapeake Bay, is currently adequate but somewhat fragile; a single 115 kV line extends southward from the Harmony Village Substation of Dominion Virginia Power (DVP). The non-redundant power supply was at risk for long interruptions and local demand threatened to outstrip supply.
Texas-based contractor Laney Directional Drilling recently employed Direct Pipe technology to make an underground wetlands crossing on a segment of a major pipeline project in the Northeast United States.
Pro-Tec Equipment introduces its line of lightweight Pipeline High Clearance Arches. Designed with pipeline crews in mind, these arches, when paired with eight-feet tall aluminum or eight-feet tall lightweight three-inch steel trench walls, provide 72-inches of vertical pipe clearance, while still allowing crews to use smaller sized machines. 800.292.1225, pro-tecequipment.com