In all cases it is necessary to ensure the quality of pipeline design and construction/installation. The method of implementation can be seen in the diagram below.Īfter completing the bore, we can decide to leave the pipe as protection for media cables, or to remove the protective pipe from the bore at the same time as ramming the new sewer, polypropylene, gas or polyester pipes. Horizontal directional drilling (HDD) becomes as a favorite crossing method in many situations for the installation of oil and gas pipelines as well as other utilities and transposition of obstacles. In very difficult terrains, bentonite is added to the bore, serving to reduce the pressure on the head. Potential hazards associated with HDD operations include struck-by and caught-in hazards from mechanical moving parts, as well as electrocution, fire and. The drilled material is transported to the entrance pit at the drill. The method of implementation can be seen in the diagram below.Īfter completing the pilot bore, an adapter for the desired diameter of drilling is installed on the pilot rods, and drilling of this diameter begins. We have various drill heads available, depending on the type of ground, including rocks, to be drilled. As a result, the machine is extremely accurate. The camera itself detects changes in elevation of 0.001 mm. We can control and monitor the bore with an accuracy of +/- 1 cm per 150 m. Implementation of subsurface drilling consists of three phases: 12 Chapter 1 Introduction to Horizontal Directional Drilling make pilot bores and pull in pipe to distances of 6,000 feet and more, depending on soil conditions. Installed pressurised pipes may be polypropylene (Hobas), polyester or polyethylene. Possibility of direct installation of sewage pressurised pipes, without protective metal pipes. Possibility of installing protective metal pipes 555-1.1 Scope of Work: The work specified in this Section documents the approved construction methods, procedures and materials for Directional Boring, also commonly called Horizontal Directional Drilling (H DD).Implementation of bores in all types of ground, including rock.This technology has many advantages over other known technologies: Implementation of diameters from f 110 mm to f 900 mm Learn about the various stages of construction. The technology is suitable for construction and rehabilitation of sewers. 490K views 6 years ago Horizontal directional drilling (HDD) is a safe method of installing an underground pipeline. We present a new horizontal drilling method using optical control. ✺ccurate implementation and guaranteed precision even for longer bores in the most demanding terrains.«
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |