EXPLO GEL 200 CONTOUR

To Explo Gel 200 Contour is suitable for road tunnel constructions and more specifically in perimeter blastholes, and other underground applications. This product is usually used in blastholes of diameters 40-50 mm.

The diameter of the explosive in comparison to the diameter of the borehole should be:  Φborehole ≥ Φexplosive column*2.

In the instance of the distance between the perimeter boreholes being labeled as Ec, the distance between the productive and perimeter boreholes as Vc then we have a relationship between these two described as followed: Ec=0.8*Vc. These distances can vary depending on the rock type.

From the experience acquired by our presence at several road tunnel constructions as well as mining and quiring sites, empirical measures of the distances mentioned above can be providing by contacting ELTEK’s team of experts.

Nevertheless, the ideal distance between the boreholes is depended on the hardness of the rock and may differ from site to site.

For the better application of the Smooth Blasting technique, the explosive column should have an equal distance to the side walls of the borehole. This is achieved by the addition of special parts, holding the tube that bears the emulsion explosive.

Explo Gel 200 Contour in this type of packaging is used to charge the perimeter blastholes. This technique serves a double cause.

To start with, free surfaces are created thus allowing the better evaluation of the performance of the productive blastholes.

Moreover, the free surfaces created are used in order to avoid over blasting and making sure the energy of the blast is restricted to the desired limits. If the blasting exceeds the desired limits the rocks on roof will be unstable. These events when occurred can lead to safety issues such as accidents due to rocks falling. Moreover, the costs of sufficiently supporting the roof of tunnels are huge making the total cost of a tunnel significantly higher.

The tubes have caps and muffs (connectors) in order to assembly a higher length column, by connecting one tube to another, depending on the length of the borehole.

Must be stored in temperature range between  -0 °C and 30 °C. Explo Gel 200 Contour should be stored in explosives magazines class 1.1D, according to legislation. It should be handled and transported according to its Safety Data Sheet (MSDS).