39K views · 430 reactions | Construction of a tunnel using drill and...

Scaling is an important stage in drilling and blasting method in rock tunnels. After each blasting scaling must always be carried out in order to remove any loose rocks. An example of mechanical scaling and chiseling is shown here during the construction of the tunnel in Tamoios highway and tunnel project in Brazil. Credit: @cqgbrasil #tunnelling #rocktunnel #rockengineering #scaling #tunneling #tunnel #tunnelengineer #tunnelengineering #geotechnicalengineer #rockmechanics #drillandblast #drilli

A blasting in tunnel. Drill and blast method is one of the most flexible tunnelling methods in hard rock. This method can be performed in wide variety of geological condition, in any tunnel shape and dimension. Design of the drill and blast pattern is an important part of this method. Ground borne vibration, air blast and fly rock are important factors that should be considered in the design along with more common parameters such as advance rate, powder factor, drill factor, maximum instantaneou

The "drill and split" method involves drilling holes along a predetermined line and then splitting the rock between the holes using wedges or other mechanical means. It's typically used in softer rock or where blasting isn't feasible due to environmental or safety concerns. Follow us at tunnel.engineering We invite you to register in our Online Tunnel Engineering course. Click the link below https://www.tunnel.engineering/challenge-page/51f7482b-3bfd-48fa-b9a2-3b14d6f8b5ae #drillandsplit #drilla

113K views · 4.4K reactions | O TRUQUE DO CARPINTEIRO PARA EIXO CENTRALIZADO #euxo #centro #tunel #barco #carpintarianaval #icapui #pesca | Alex Marques | Facebook