I am a geologist working in a Government organization. Believe me I knew nothing about this. I have subscribed to your channel. You Indians are far better than us in Geology . From Pakistan
What is the need to take reading for all the joint sets? Just select the most vulnerable joint set and calculate. Here in the video the slope parallel is the vulnerable set.
What if I have stratification and two joints set. Do I have to obtain these parameters for each one of them? If the discontinuities are very varied, which values or rating should I use in the general RMR classification? The mean or the lowest value?.
Yes, you can define the joint oreintation as favourable and unfavourable by considering into the oreintation of the proposed engineering structures ( l.e with the oreintation of slope, foundation, tunnels , road , dam axis etc). More over, if the strike& dip direction of the joint is parallel to the strike and dip direction respectively of roads, tunnels, dam axis or slopes, in this case those joints are considered as non favourable.
Sir, stress orientation can be determined by conjugate joint set on surface and for underground its depends on rock cover if rock cover is high then it will be vertical. And if we want calculate the paleostress then we have to look after the lineation. There is one more method that is generally usable by many workers as dip sirection of strata represent x- direction, thickness represent z- direction and strike of strata follow y principle stress direction.
Sir, in soft filling generally get soil, clay, clayey soil, sandy soil, silty soil etc. And in hard filling get intrusion or different types of veins or seconday mineral crystallization as calcite, quartz etc.
I am a geologist working in a Government organization. Believe me I knew nothing about this. I have subscribed to your channel. You Indians are far better than us in Geology . From Pakistan
Great work. You have taught me all I need to do my job.
very much useful for engineering field work... Thanku sirji
Very nice and valuable video for engineering geo.
Very informative video.. Thanks a lot sir.. Keep learning. Jay Hind
Beautifully explaind thanks alot it helped me
Reminding me one of my first jobs. Well explained , just hoped you can show same from inside tunnel. It's less fun once confined.
Thank you.👍
Thank you for such great video. Very well explained. Sir please make a video on tunnel.
Thank you.
Marking a scan line with spray paint for better understandstsnding and also divide the area either 10 mtr Or 5 mtr for Geotechnical mapping
Thank you for your explanation(from Nepal)
Thanks for sharing with us
this is a very excellent lecture ,please can add another showing how to collect rock mass rating data in underground (ex shaft)
I will try sir
Thank you so much for a very useful Video. I will appreciate if you share the RMR table as a PDF format as well.
Useful video sir
👍Grate work.
Aha thank you king 👑
thanks Doc
Sir can you make a video form rmr profile map with proper mapping sheet.....
Thank you sir
What is the need to take reading for all the joint sets? Just select the most vulnerable joint set and calculate. Here in the video the slope parallel is the vulnerable set.
Great and many thanks sir ! may be one thing i need to now is how much by how much section are you used to make RMR data value? Thanks!
Regards!
thanks alot, Allah bless you
why are you considering only foliation joint spacing and neglecting joint spacing for joint 1 and Joint 2?
not neglecting for J1 and J2, this was for demo. J1 and J2 have to collect like foliation
sir, can we use the same sheet with the same method for Granulitic Rock?
how to used this parameters in tunnel investigation, is it necessary to face mapping..
Please do the same analysis of a core sample. I mean how to determine the inclination aperture roughness etc of a discontinuity in a core sample
Ok sir
What if I have stratification and two joints set. Do I have to obtain these parameters for each one of them? If the
discontinuities are very varied, which values or rating should I use in the general RMR classification? The mean or the lowest value?.
Why you did't use scanline method ?
👍👍👍
Sir, can you please tell how to define the joint orientation as favourable or unfavourable for calculating RMR using CMRI method....
Yes, you can define the joint oreintation as favourable and unfavourable by considering into the oreintation of the proposed engineering structures ( l.e with the oreintation of slope, foundation, tunnels , road , dam axis etc). More over, if the strike& dip direction of the joint is parallel to the strike and dip direction respectively of roads, tunnels, dam axis or slopes, in this case those joints are considered as non favourable.
@@Demeke Thank you Sir
sir, how can we distinguish stress orientation on rock in the field, could you please explain it?
Sir, stress orientation can be determined by conjugate joint set on surface and for underground its depends on rock cover if rock cover is high then it will be vertical. And if we want calculate the paleostress then we have to look after the lineation. There is one more method that is generally usable by many workers as dip sirection of strata represent x- direction, thickness represent z- direction and strike of strata follow y principle stress direction.
Sir plz make a video on geological mapping
Ok sir
❤️❤️
sir is it outcrop Quartzite..
Yes sir
Aperture is more than 5mm
What are the materials in hard and soft filling sir????
Sir, in soft filling generally get soil, clay, clayey soil, sandy soil, silty soil etc. And in hard filling get intrusion or different types of veins or seconday mineral crystallization as calcite, quartz etc.
Thank you very much sir i got the point and another question are joint and joint plane the same thing????
Sir, some time some people correlate the joint with trace of the joint but ultimately joint is joint plane with respect to this lecture.
Sir can u share this data sheet for rock quality parameters
Yes sir sure, plz give your email id
@@DrMohitKumarPuniya akhilgaikwad52@gmail.com
@@DrMohitKumarPuniya paschalshaaban@gmail.com send me the data sheet of the RQD parameters