Induced caving by blasting: innovative experiments in blasting gallery panels of underground coal mines of India
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
View Archive Info| Field | Value | |
| Title |
Induced caving by blasting: innovative experiments in blasting gallery panels of underground coal mines of India
|
|
| Creator |
Pal Roy, P.
Sawmliana, C Bhagat, N.K. |
|
| Subject |
Blasting
|
|
| Description |
Induced caving by blasting during depillaring of panels in underground coal mines has received limited attention. This technique has become an integral part of a mining operation known as the blasting gallery (BG) method in India. Systematical deep hole (16-30 m) blasting has been successfully carried out from underground split galleries in BG panels. A study of drilling and blasting parameters, gas hazards, strata behaviour and ground vibration was undertaken as part of a research project for the Indian Ministry of a coal and Mines. Strata behaviour during blasting and ground movements were critically investigated. All experiments were conducted using newly developed explosive and detonating cord systems. A new blast damage index is proposed for damage assessment of the underground roof and pillars of BG panels. Useful mathematical formulas are described as an aid to future design.
|
|
| Publisher |
Institution of Mining and Metallurgy
|
|
| Date |
2003-04
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cimfr.csircentral.net/272/1/P_Pal_Roy.pdf
Pal Roy, P. and Sawmliana, C and Bhagat, N.K. (2003) Induced caving by blasting: innovative experiments in blasting gallery panels of underground coal mines of India. transactions of the Institution of Mining & Metallurgy Sec. A, Mining Technology, 112. pp. 57-63. ISSN 0371-7844 |
|
| Relation |
http://cimfr.csircentral.net/272/
|
|