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1,煤矿塌陷区复田的重要性及现状建国以来,中国煤炭生产发展迅速,煤炭产量从1949年的0.32亿吨,提高到1985年的8.7亿吨,占世界第二位.煤是中国主要能源,在能源结构中占73%以上.随着开采范围的不断扩大,煤矿地面塌陷日益增多,这个问题在东部平原地区尤为突出.根据两淮、徐州、开滦等40个矿区统
1. The Importance and Status of Re-Tian in Subsidence Area of Coal Mine Since the founding of the People’s Republic of China, the coal production in China has been developing rapidly and the output of coal increased from 32 million tons in 1949 to 870 million tons in 1985, accounting for the second place in the world. Energy accounts for more than 73% of the energy structure.With the continuous expansion of the mining area, coal mine surface subsidence is increasing day by day, and this problem is particularly prominent in the eastern plains.According to the 40 mining areas such as Lianghuai, Xuzhou and Kailuan