HORIZONTAL DIRECTION DRILLING

Horizontal Direction Drilling (HDD)
Depending on the specific project requirements Codmah can also offer Horizontal Directional Drilling (HDD) techniques to our clients. This is often the most feasible method when a pipeline must be laid where there are;

- Manmade structures i.e. under built up residential & commercial areas, roadways & or railway lines
- Natural obstacles i.e. soft ground and or under streams / rivers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vermeer D24x40 Series I & II
Codmah have at its disposal a ra nge of D24x40 machines that can be employed to meet small to medium size construction projects.

The D24x40 models offer construction flexibility by being able to;

- Install different nylon & PE pipe diameters DN18 to DN400
- Shots lengths of up to 200 meters – depending on pipe diameter
- Depth of drills ave 2.0 to 5.0 m
- 3.1 meter “FIRESTICK I” Drill Stems
- Multiple types of drilling heads for different ground conditions inc rock

 

Vermeer D100x120 Series II
Codmah are very excited to announce that with the imminent delivery of our new D100x124 machine Codmah will be able to offer more comprehensive HDD capabilities.

The D100x124 model will offer improved construction capabilities including;

- Install pipe diameter up to DN500 – 1000 meter shots
- Install pipe diameter +DN 500 to DN1000 – 400 meter shots
- Provide pipe bursting (cast iron & fibre based) & new pipeline insertion capability
- 6.1 meter “FIRESTICK II” Drill Stems
- On-Grade sewer bores – 1 in 200
- Multiple types of drilling heads for different ground conditions inc rock

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Benefits of HDD over Open Cut methods include

- Compact plant size allowing flexibility in very tight worksites (inc inner city)
- Small construction foot print i.e. drill entry exit point within 2sq mtr areas
- Quieter than excavator and or trencher operations
- Environmentally friendly technique – non toxic polymers & bentonite drill fluids
- Very high point to point accuracy