Instrumentation and monitoring for strata behaviour investigation during underground coal mining in India
An issue of measurement and analysis of strata control parameters during underground coal mining (bord and pillar) in India is discussed. Requirement of different instruments along with their suitability to monitor the strata control parameters under varying geo-mining conditions of different coal mines is explained. On the basis of field experiences, it is observed that the type of instrument to be placed in and around a depillaring face is more or less dependant upon the geomining conditions of the site. Field investigations showed that the continuous monitoring (in time) of these instruments, preferably with the help of a data logger, can provide important information about performance of mining structures (bord and pillars) during caving of a competent overlying roof stratum. However, in absence of the data logger, behaviour of overlying strata is visualised through observations of a number of instruments under Combined- Instruments-Approach (CIA). Some results of CIA based field measurements are presented to demonstrate the role of in situ instrumentation and monitoring for safety of the underground coal mining.
Rajendra Singh
Central Institute of Mining and Fuel Research (CIMFR, erstwhile CMRI), Barwa Road, Dhanbad, 826001, India
国际会议
香港
英文
1-5
2009-05-19（万方平台首次上网日期，不代表论文的发表时间）