Avtar Raina

Prof. Avtar Raina

CSIR-Central Institute of Mining and Fuel Research, Dhanbād, Jharkhand, International
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orcid

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2014 in Journal of Rock Mechanics and Geotechnical Engineering
Verified
Journal Article
Open access
RTR. Trivedi
R. Trivedi
TST.N. Singh
T.N. Singh
Avtar RainaAvtar Raina
Avtar Raina
Frequency and scale of the blasting events are increasing to boost limestone production. Mines are approaching close to inhabited areas due to growing population and limited availability of land resources which has challenged the management to go for safe blasts with special reference to opencast mining. The study aims to predict the distance covered by the flyrock induced by blasting using artificial neural network (ANN) and multi-variate regression analysis (MVRA) for better assessment. Blast design and geotechnical parameters, such as linear charge concentration, burden, stemming length, specific charge, unconfined compressive strength (UCS), and rock quality designation (RQD), have been selected as input parameters and flyrock distance used as output parameter. ANN has been trained using 95 datasets of experimental blasts conducted in 4 opencast limestone mines in India. Thirty datasets have been used for testing and validation of trained neural network. Flyrock distances have been predicted by ANN, MVRA, as well as further calculated using motion analysis of flyrock projectiles and compared with the observed data. Back propagation neural network (BPNN) has been proven to be a superior predictive tool when compared with MVRA

1 January 2002 in Engineering Geology
Verified
Journal Article
Closed access
MBM.N Bagde
M.N Bagde
Avtar RainaAvtar Raina
Avtar Raina
ACA.K Chakraborty
A.K Chakraborty
JJJ.L Jethwa
J.L Jethwa

14 March 2014 in Bulletin of Engineering Geology and the Environment
Verified
Journal Article
Closed access
PDF file
Avtar RainaAvtar Raina
Avtar Raina
VMV. M. S. R. Murthy
V. M. S. R. Murthy
ASA. K. Soni
A. K. Soni

1 May 2004 in Engineering Geology
Verified
Journal Article
Closed access
ACA.K Chakraborty
A.K Chakraborty
Avtar RainaAvtar Raina
Avtar Raina
MRM Ramulu
M Ramulu
PCP.B Choudhury
P.B Choudhury
AHA Haldar
A Haldar
CBC Bandopadhyay
C Bandopadhyay

15 March 2022 in Rock Mechanics and Rock Engineering
Verified
Journal Article
Closed access
PDF file
AAAnil Kumar Agrawal
Anil Kumar Agrawal
VMV. M. S. R. Murthy
V. M. S. R. Murthy
SCSomnath Chattopadhyaya
Somnath Chattopadhyaya
Avtar RainaAvtar Raina
Avtar Raina

3 May 2019 in Rock Mechanics and Rock Engineering
Verified
Journal Article
Closed access
PDF file
Avtar RainaAvtar Raina
Avtar Raina