A new paste filling technique could save the Dhanbad-Chandrapura rail line. The Central Institute of Mining and Fuel Research (CIMFR) has started a pilot project using this technique in a Tata colliery near the Adra-Bhaga-Gomoh line. The technique involves filling abandoned mine galleries with a mixture of fly ash, cement, and...
more...

water, creating a solid and durable barrier that can prevent subsidence. The paste filling is considered more robust than traditional sand filling and can protect homes, roads, and railways from subsidence. This pilot project could potentially be implemented in other areas, including the Dhanbad-Chandrapura line, which has been deemed unsafe by the Directorate General of Mines Safety (DGMS).