Drilling technology without trenches (Trenchless Technology), commonly called No-Dig includes a range of measures to avoid the need for digging to install or repair pipelines, communication lines are the arteries or. The methods in the last 20 years, the main choice is selected for drilling in urban environments. Given the pace of developments in developing urban infrastructure will be in dire need of development and reconstruction. Thus, the use of modern methods for the construction, reconstruction and repair of vital arteries clearly felt. One of the tools and in the development of the arteries, using modern drilling techniques that are known in the world as drilling without trenches.
The history of the use of these methods in the construction and repair of infrastructure dates back to the early 70s, so these methods are well known in the world. But in Iran, using methods commonly and rarely used these methods.