Khanbooli began its NDRC operation in 2014. The Company specializes in non-disruptive road crossings utilizing the latest technology in Horizontal Thrust Boring and Directional Drilling Techniques.Horizontal Directional DrillingThe latest advanced technology in non disruptive road crossings. Ideal for water, Gas, electric & fibre optic cables and telephone cables of single or multiple ducts. Drilling HDPE pipes from 32mm diameter to 1000mm diameter, and lengths from 8m to 500m, Under Roads, Railway tracks, Pavements, Lakes and rivers, Airport run ways, and solid structures.
NDRC “Non Disruptive Road Crossing”
Horizontal Thrust Boring
From 4” inch to 54” inch diameter pipes, for all types of services and utilities. Idealfor Water, gas, oil, electric, telephone and sewage lines, under Asphalt roads, Railway tracks, and Airport Runways.
Advantages
Horizontal Directional Drilling or Thrust Boring offer customers many advantages over traditional trenching methods and ultimately reduces construction time and costs.They eliminate the need to cut roads, which are expensive to restore and provide traffic diversions. They are ideal in environmentally sensitive areas for minimum disturbance to the surrounding environment. They reduce disturbance to traffic and businesses, and are much faster then conventional methods.We have provided our services all over the U.A.E to all the Municipalities, Roads and Transport departments, Electricity and Water Departments, Sewage and Water treatment departments, Irrigation and Landscaping departments, Telephone and Communication departments, Gas and Oil companies, Civil Aviation department and numerous construction companies.
Drilling pilot bore hole
The pilot bore is launched from the surface at an angle between 6 and 15 degrees to the horizontal, and transitions to horizontal as the required depth is reached. A bore path of very gradual curvature or near straight alignment is normally followed to minimize friction and to stay within the allowable joint deflection and the allowable bend radius for the pipe. This minimizes the chance of getting the pipe string “hung up” in the soil or damaging the pipe string.
Enlarging pilot hole
The pilot hole is enlarged by pulling back increasingly larger reamers, or reaming heads, from the pipe “Exit Point” to the rig side, conventionally defined as “Entry Point”. To achieve the appropriate bore path size it may be necessary to perform several reaming operations. Generally, all reaming procedures prior to the actual product pipe installation are referred to as Pre Reaming, and the final ream to which the product pipe is connected is referred to as the ‘Back Reaming’.
Pulling in the pipe(s)
After the pre reams procedures, the Pulling Head and connecting product pipe are attached to the reamer using a Swivel, a device that isolates the pipe string from the rotation of the HDD drill pipe “Rod”.The product pipe is then pulled behind the final reamer back through the horizontal directional drill path to the exit pit on the rig side.