Great video sir.... Thnkx for this valuable video

Nice information Sir it's very helpfull

Thankyou

Can you please tell me the process to know the maximum pull-out load carried by rock bolt?

Thanks sir for giving information about rockbolt pull out test.

@omkar.mishra

4 жыл бұрын

Thanks bro

Thank you Sir

Useful.

Sir can you please tell me upto how much pullout load, we have to apply?? How to calculate or know that one??

How much load takes 6m Rock bolt

so whats the range of pullout test to be passed for cement or resin grouted

@omkar.mishra

2 жыл бұрын

Generally its should be 80% of yield or depending on types of rockbolts

Pls give the REFERENCE OF IS procedure standards

@Shashank_1518

3 жыл бұрын

IS 11309

I am talking about this Dadhi wala

Difference between pull out test and yield load

@omkar.mishra

4 жыл бұрын

Yield strength means when maximum strength is applied to elastic material it's withhold without permanent deformation and when maximum strength is applied to elastic material it result in breaking which is called as ultimate strength. The pull out load is maximum 80% of Yield load.

@amitkumargupta2880

3 жыл бұрын

Sir I want to know about, which is code that given 80% load of yield load for pull out test.

Please explain difference between Bolt and anchor Rockbolt and sda

@omkar.mishra

2 жыл бұрын

Bolt and anchor as my knowledge is similar think but when we used bar for rock bolt, we use to say SN (Store Norfors) - this name by who discovered this design. SDA is Self drilling Anchor, we use anchor with drilling bit to drill the hole and after drilling we grouted it self with the help of its centre hole. Anchor word coming from anchoring and bolt is who anchor. Thanks

@BookingVideos_com

2 жыл бұрын

@@omkar.mishra i tunneling We used rockbolt in the side and top 25mm-32mm .but sda is ? Which is more strong for lose supporters

@omkar.mishra

2 жыл бұрын

@@BookingVideos_com if we use SN 25mm dia of rockbolt, we want a clear hole but in poor class of rock it is not possible because hole is going collapse that’s case we use self drilling anchor. And rockbolt strength decided with its TS and YS.

@BookingVideos_com

2 жыл бұрын

@@omkar.mishra so sir if the rock class is loss b3 or c2 then we use sda Anchor if the rock class is good then we use rockbolt.

@BookingVideos_com

2 жыл бұрын

@@omkar.mishra please make one video on there difference.. sda & rockbolt

Who is this labour cleaning the rock bolt thread

@omkar.mishra

3 жыл бұрын

You know that guy 😀😀