The rapid economic development is inseparable from infrastructure construction, and infrastructure construction is closely related to geotechnical engineering. Geotechnical engineering is mainly to solve rock mass and soil engineering problems, including foundation and foundation, slope and underground engineering, etc., as its own research object. Rock drilling is widely used in these fields. Since rock drilling is used in many fields, there are many different methods. We mainly share the following 7 methods for you.

Hand drill

Hand-held rock drilling is rock drilling performed with a hand-held lightweight rock drill. Primarily used on small jobsites or where larger equipment cannot be used in limited space.

The rock drilling tools matched with hand-held rock drilling are mainly H22, H25 taper connecting drill rods, the size of the shank is 108mm x H22, with a taper hole connection, cross and column tooth drill bits, mainly used for surface quarrying .

Mechanical rock drilling

In mechanical rock drilling, the operator is often monitoring two or three rock drilling rigs. The rock drill is mounted on a thruster or slide arm. Equipment that carries propellers or sliding arms for mechanized rock drilling is called a drilling jumbo. The main manufacturers of rock drilling rigs in the world are: SANDVIK, ATLAS COPCO, FURUKAWA, GARDNER-DEVER, etc.

Terrace rock drilling

Terrace rock drilling is an excavation method in which blasting holes are drilled on terraces for terrace blasting. It is characterized by blasting directly towards open space. Terrace rock drilling is also divided into surface and underground situations.

Roadway excavation and rock drilling

Level entry rock drilling is a rock drilling operation method for drilling tunnels or blasting rock holes in air-raid shelters. Since there is no free space when drilling a drift tunnel, it is necessary to drill a cut hole when arranging the drilling to provide a good rock discharge channel for the blasting operation. Drilling can be done using hand-held rock drills or mechanical equipment. In larger workings, rock drilling is usually done with larger machinery.

Production rock drilling (medium and deep holes)

Production rock drilling refers to drilling and blasting rock holes in ore bodies, or mining production rocks in quarries. This rock drilling method is suitable for open pit mines, quarries and underground mines. It is usually excavated by drilling deep holes or terraces. Downhole, this method of rock drilling is mostly carried out in a limited roadway space.

Support rock drilling

Support rock drilling is used to prevent tunnels and rocks from collapsing. First, a rock hole is drilled on the rock, and then the expansion anchor or grouting anchor is installed in it. The anchor rod reinforces the surrounding rocks that may loosen and fall off.

Lifting the hanging drill for rock drilling

Vertical access is often required in downhole or other underground shelters. The vertical channel can now be drilled across the face using the lift drilling rock drilling method.

Overload drilling

When drilling foundation pile holes, anchor holes or water well holes, it may be more advantageous to use the overload rock drilling method.