Darda ROCK SPLITTERS

Application Report - Demolition of Rock and Natural Stone

Trench excavation - splitting machines replace explosives

The Job:
Modernizing an aging sewer system in near the Royal Theatre in Stockholm, Sweden. During excavate of a trench workers suddenly struck solid rock, which extended over a distance of 30 m. This defeated conventional attempts of excavation. The volume of the rock amounted to 100 m3.

The requirements:
The use of explosives was ruled out for a number of reasons, i.e.


		Possible damage to an underground transformer station.

		An antique shop, containing valuable furniture and objects of art was located in the immediate vicinity.

		Surrounding buildings would have had to be protected and pedestrians and traffic diverted.

The solution:
Darda offered a quick, economical solution to the problem with the use of two splitting cylinders and a diesel power unit. Both splitting cylinders together developed a splitting force of 640 tons. The rock was rapidly removed, enabling the workers to continue the trench-digging operation.

Applications Report Overview

Underwater demolition

Rescue operations

Break solid granite like Butter

Rock break

Tools & Accessories

Mining Supplies

Construction Tools

Threaded Steel & Bits

Crowder Supply

Darda ROCK SPLITTERS