Evaluation and Reuse of Underground Space in Coal Mines of Shanxi Province
Shanxi Province contains abundant coal resources,with its annual coal output occupying nearly 1/4 of the national output,and has formed a large amount of underground space due to coal mining.With the proposal of the goal of carbon neutrality and the vigorous development of wind power and photovoltaic power generation in Shanxi,it is critical to make rational use of the underground space,especially the combination of underground space and new energy for the low-carbon development of coal industry.This work used the proportional coefficient method and the law of conservation of underground mining space,estimated the available space of coal mines in Shanxi Province of 2022 to be 154 million m3,and the space of those closed coal mines from the 10th to 13th Five-Year Plan was 105 million m3.Also,the underground space formed by mining working faces in coal mines of Shanxi Province from 1949 to 2021 was estimated to be 3.898 billion m3,and the space of mining working faces in coal mines will be about 1.956 billion m3 by 2030.According to the demand of low-carbon energy development in Shanxi Province,four modes of underground space utilization in coal mines were put forward,i.e.,underground tourism or underground storage,underground pumped energy storage,underground compressed air storage and underground carbon dioxide storage.
space formed by coal miningcarbon neutralityunderground space estimationutilization modeShanxi Province