采煤塌陷地的治理是产煤区面临的一个共同难题,江苏省徐州市铜山区采煤塌陷地的情况在全国比较典型。国家从上世纪50年代开始就在铜山区建矿采煤,历经半个多世纪,国家及地方先后在这里建成韩桥、夏桥、大黄山等14座大型国有煤矿和上百 Coal mining subsidence governance is a coal mining area is facing a common problem, Tongzhou District, Xuzhou City, Jiangsu coal mining subsidence in the country is more typical. Since the 1950s, the country has started mining and mining in Tongshan District. After more than half a century, 14 large-scale state-owned coal mines such as Hanqiao, Xiaqiao and Huanghuangshan have been built here successively by hundreds of countries and regions.