Electrical cable for power distribution systems has been placed underground for decades. In fact, it would be unusual today to even consider installing aerial power or communications cable in a new residential development, office park, government or institutional campus.
Drive past most any construction site, and there’s a good chance many of the machines working there are rented, clearly marked by decals of the rental company that owns them. Most construction specialty niches rent equipment, including utility providers and contractors engaged in underground utility construction.
Cobble -- usually rounded pieces of rock that can range in size from a marble to a basketball -- is considered one of the most difficult and challenging soil conditions for making a directional drilling installation.
“Cobble is not fun,” said Boyd Simon, P.E., field services division manager for Ranger Directional Drilling.
Addressing the problems of the nation’s aging underground infrastructure is a priority for many cities and sanitary sewer and water districts across North America. Though slowed by the economy, there is still a host of massive rehabilitation and construction projects under way or in planning stages with many more such efforts to come.
The year 2010 had many positive aspects for the Power Communications Contractors Association (PCCA) and its members, observed Kevin Mason as he nears the end of his one-year term as the association’s president.
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.