It has proven its worth as a drilling methodology time and time again and its reliability is just one of the reasons why it has become so popular to geotechnical drilling companies.
Cable percussion drilling method.
Frequently used to drill wells or during mineral prospecting activities this type of drilling has been used for thousands of years and is adaptable to whatever technology is available.
Percussion drilling is a manual drilling technique in which a heavy cutting or hammering bit attached to a rope or cable is lowered in the open hole or inside a temporary casing.
The drilling technique allows the installation of casing inside the borehole to prevent loose soils collapsing into the hole allowing the borehole to be advanced to considerable depths while maintaining good progress.
Cable tool drilling method.
The danbar drilling team are able to deliver extremely reliable and effective cable percussive drilling techniques which offer high levels of cost efficiency as well as a range of technical benefits.
Percussion drilling is a drilling technique in which a drill bit attached to rope or cable is repeatedly raised and lowered impacting soil and rock and making a hole deeper.
Depending on access limitations and favourable ground conditions boreholes up to 60m depth can be formed.
Our drilling operatives also have various certifications such as sssts.
A cable percussion crew consists of two fully nvq trained operatives one lead driller and an additional support operative.
Our crew process.
Cable tool drilling is a method of drilling in which a hole is made by the repeated blows generated by lifting and dropping a heavy chisel bit on rocks or underground formations.
Cable percussion drilling can also drill deeper and drill further into the water table than other drilling methods.
This is part of a new series of videos we have launched covering safe and effective drilling on geo environmental and geotechnical site investigations.
The technique is often also referred to as cable tool.
Cable percussion shell and auger is the most common drilling method used for geotechnical site or ground investigations in the uk.
Thanks to our experience and versatile rigs this method of drilling is ideal for use alone or as part of a wider drilling strategy on site.
