sound-wall blasting
Quick Summary
Blasting is a process used to break down solid materials, like rock, using explosives. This technique involves drilling holes, placing explosive charges and detonators, detonating the charges, and then removing the fragmented material. The rapid expansion of gases from the detonation creates immense pressure, shattering the rock and causing cracks to form and extend.1
"Sound-wall blasting" is a specialized technique, primarily developed in Sweden, designed to preserve the integrity of rock surfaces during excavation. This method carefully controls the blasting charges to match specific rock conditions, often resulting in smooth, well-shaped rock surfaces that may eliminate the need for concrete lining, leading to cost savings. This contrasts with conventional blasting, which can damage the rock and necessitate additional support structures. Blasting is commonly employed in mining, demolition, and the excavation of foundations for construction projects.231
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tunnels and underground excavationsPreserving rock strengthā¦is the Swedish development of sound-wall blasting (to preserve rock strength), treated below under rock chambers, since its importance increases with size of the opening. The second is the American development of rock moles that cut a smooth surface in the tunnel, thus minimizing rock damage and support needsāhere limitedā¦
Read Moreā¦is the Swedish development of sound-wall blasting (to preserve rock strength), treated below under rock chambers, since its importance increases with size of the opening. The second is the American development of rock moles that cut a smooth surface in the tunnel, thus minimizing rock damage and support needsāhere limitedā¦
Read More- tunnels and underground excavationsSound-wall blasting
Sound-wall blasting is a technique, primarily developed in Sweden, that preserves the finished rock surfaces in sound condition by careful design of the blasting charges to fit the rock conditions. In underground work, Swedish practice has often produced remarkable results almost like rockā¦
Read MoreSound-wall blasting is a technique, primarily developed in Sweden, that preserves the finished rock surfaces in sound condition by careful design of the blasting charges to fit the rock conditions. In underground work, Swedish practice has often produced remarkable results almost like rockā¦
Read More