煤炭是我国的主要能源,在一次能源生产、消费构成中均占70％以上。煤炭的开采、运输、加工和利用既对国民经济建设发挥着重要作用,同时也导致严重的环境污染,譬如,二氧化硫和烟尘的大气污染,煤矸石和粉煤灰的堆放,煤矿地表沉陷等生态环境问题。其中,煤炭开采引起的地表沉陷,造成矿区大量的土地和建筑物严重 Coal is the main energy source in China, accounting for more than 70% of the total energy consumption and consumption. Coal mining, transportation, processing and utilization not only play an important role in the national economic construction, but also lead to serious environmental pollution, such as air pollution of sulfur dioxide and soot, stacking of coal gangue and fly ash, surface subsidence of coal mines and other ecological Environmental issues. Among them, the surface subsidence caused by coal mining, resulting in a large number of mining land and buildings serious