Blog

Rockfall refers to quantities of rock falling freely (uncontrolled) from a natural slope or man-made excavation. The term is also a synonym for collapse of rock from an underground mine roof or open pit mine high-wall, also known as fall of ground. Rockfalls are also major hazard in excavations for highways and railways in mountainous terrain. A

Wire-Mesh Lacing for Rockfall Protection Rockfall refers to quantities of rock falling freely (uncontrolled) from a natural slope or man-made excavation. The term is also a synonym for collapse of rock from an underground mine roof or open pit mine high-wall, also known as fall of ground. Rockfalls are also major hazard in excavations for highways and

Rockfall Drapery Mesh Installation on Challenging Slopes Installations of rockfall drapery systems are never easy; and never the same. Each project has a different set of challenges, with slope conditions and access to the slope as major factors. Hoff Geotechnik was recently appointed to install drapery mesh systems on a tricky slope along a railway

Rockfall scaling ranges from simple scaling of loose rock mass with hand-held tools such as “gwala” to more advanced processes such as the sensitive blasting with low energy rock-breaking cartridges. Rockfalls presents major hazards in excavations for open pit mines, highways and railways in mountainous terrain. A rockfall event is generally initiated by climatic and

Rockfall scaling ranges from simple scaling of loose rock mass with hand-held tools such as “Gwala” to more advanced processes such as the sensitive blasting with low energy rock-breaking cartridges. Rockfalls presents major hazards in excavations for highways and railways in mountainous terrain. A rockfall event is generally initiated by climatic and biological event that

What is Rockfall Hazards Mitigation? Definition: Rockfall refers to quantities of rock falling freely (uncontrolled) from a natural slope or man-made excavation. The term is also a synonym for collapse of rock from an underground mine roof or open pit mine high-wall, also known as fall of ground. Rockfalls are also a major hazard in excavations for

Cost of Rockfall Hazard Mitigation  Generally, construction of rockfall netting consist of general components like the wire-mesh, top anchors, bottom anchors (or bottom weights), top rope, lap links and/or other wire-mesh lacing components. The rockfall netting comes in individual and heavy rolls of steel wire. The lengths, width, and weight varies depending on the manufacturer

We often find that suitable rockfall protection designs are overlooked as the mitigation comes as an emergency when time and money is limited. However, even with limited time and money, the designer must ensure that the rockfall protection system is fit for the purpose. But what goes into a comprehensive design? It first starts with

Rockfall Hazards Mitigation Defination: Rockfall refers to quantities of rock falling freely (uncontrolled) from a natural slope or man-made excavation. The term is also a synonym for collapse of rock from an underground mine roof or open pit mine high-wall, also known as fall of ground. Rockfall is also major hazard in excavations for highways and railways in

Rockfall Protection: Simple Drapery Systems Simple drapery systems are designed rockfall protection systems with the purpose of reducing risk and impact of hazardous slopes where rockfall occur. A simple drapery system is as the name suggest, simple in structure, and consist of steel wire mesh rolls connected to a horizontal steel cable on the crest

Blasting Methods to Minimise Rockfall in Open Pit Mines Most of the large open pit mines employs only one type of blasting method: This is known as Production Blasting. Mines that have a high consequence for  rockfall usually employ three additional blasting methods: Pre-split and Trim Blasting. Production blasting: the main aim of this method