Tunnel Rock Bolt Installation | Grouted Rock Bolts Procedure Step by Step | Civil Engineering скачать в хорошем качестве

Tunnel Rock Bolt Installation | Grouted Rock Bolts Procedure Step by Step | Civil Engineering

This video shows the installation process of grouted rock bolts in tunnel construction. Rock bolts are one of the most important ground support systems used in underground excavation to stabilize the rock mass and maintain tunnel safety. The procedure shown in this video includes survey and marking of rock bolts, drilling using a two boom jumbo machine with 64mm drill bit, hole cleaning, installation of 10m long rock bolts with 28mm diameter (Grade 75 – 420 MPa), grouting process, tightening of plate and nut after grout setting, and finally the rock bolt pull-out test after 28 days. This video is recorded from a real tunnel construction site and is very useful for fresh civil engineers, tunnel engineers, and students who want to learn practical tunnel engineering work. Topics covered in this video: ✔ Survey and marking of rock bolts ✔ Drilling using jumbo machine ✔ Hole cleaning procedure ✔ Rock bolt installation ✔ Cement grouting ✔ Plate tightening ✔ Pull out testing after 28 days Subscribe to the channel for more Tunnel Engineering, Dam Construction, and Civil Engineering Site Learning videos. RockBolt #TunnelEngineering #RockBoltInstallation #GroutedRockBolt #TunnelConstruction #CivilEngineering #DamProject grouted rock bolts rock bolt installation tunnel rock bolt drilling jumbo rock bolt grouting procedure tunnel rock support system rock bolt pull out test civil engineering tunnel work tunnel construction methods dam tunnel engineering underground construction #tunnelengineering #civilengineering #drillandblast Complete explanation video of Tunnel Support System including Rock Bolts, Shotcrete and Steel Ribs will be uploaded soon. Stay connected for real site engineering learning.