Dear sir,
To avoid big boulder generation either drill one additional hole between four holes of two rows or go for decking.
It may solve boulder generation problems.
Best wishes,
Pradeep kumar
AGM(Min)
Bacheli Complex
NMDC Ltd.
On Thursday, 25 September 2014 7:24 PM, "Pradeep Kumar pradeepminer@yahoo.com [dgms_mail_list]" <dgms_mail_list@yahoogroups.com> wrote:
Dear Group
Is it possible to conduct Deep hole blasting in conjunction with short holes. Mean to say that, other than drilling PILOT holes in front row, what should we do to avoid generation of big size boulders ?
Please share your experience, if any.
Pradeep Kumar
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Posted by: Pradeep Kumar <pradeepminer@yahoo.com>
------------------------------------
_________________________________________________________________
Directorate General of Mines Safety, Ministry of Labour & Employment, Govt. of India
Websites: http://www.dgms.net and http://www.dgmsindia.in and http://www.dgms.gov.in
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Is it possible to conduct Deep hole blasting in conjunction with short holes. Mean to say that, other than drilling PILOT holes in front row, what should we do to avoid generation of big size boulders ?
Please share your experience, if any.
Pradeep Kumar
------------------------------------
Posted by: Pradeep Kumar <pradeepminer@yahoo.com>
------------------------------------
_________________________________________________________________
Directorate General of Mines Safety, Ministry of Labour & Employment, Govt. of India
Websites: http://www.dgms.net and http://www.dgmsindia.in and http://www.dgms.gov.in
--------------------------------------------------------------------------------------------------------
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Posted by: Pradeep Kumar <pradeepnmdc@yahoo.co.in>
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_________________________________________________________________
Directorate General of Mines Safety, Ministry of Labour & Employment, Govt. of India
Websites: http://www.dgms.net and http://www.dgmsindia.in and http://www.dgms.gov.in
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Websites: http://www.dgms.net and http://www.dgmsindia.in and http://www.dgms.gov.in
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