Subsidence over old coal mine workings can not be avoided if the underground workings are not fully filled. Existence of fire, illegal mining operation and seasonal impact (rainfall) aggravate proneness of subsidence over old workings. This paper deals with the causative factors of subsidence over old workings and its relation with rainfall with reference to Jharia and Raniganj Coalfields, India during the year 2007. The impact of subsidence has also been dealt in this paper.
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