江苏省煤炭资源短缺,但在建筑物下、水体下、铁路下(以下简称“三下”)积压着大量的煤炭资源。调查分析“三下”压煤状况,探讨研究“三下”采煤主要技术途径,对“三下”采煤前景作出评价,是江苏省广泛进行“三下”采煤,解放“三下”煤量的重要环节,对促进江苏省煤炭生产发展有重要的现实意义。 There is a shortage of coal resources in Jiangsu Province, but a large amount of coal resources are backlogged under buildings, water bodies and railways (hereinafter referred to as “the three underneath”). This paper investigates and analyzes the status of “three times” coal pressing, discusses the main technical approaches for “three times” coal mining, and appraises the prospect of “three times” coal mining. It is the result of “three times” coal mining in Jiangsu Province, An important part of coal production, coal production in Jiangsu Province to promote the development of important practical significance.