煤矿老采空区上方高速公路建设安全性评价及其关键技术研究

郭庆彪

Research on the safety evaluation and key technologies for the expressway construction on old goaf of coal mine

GUO Qingbiao

测绘学报 . 2019, (4): 532 -532 . DOI: 10.11947/j.AGCS.2019.20180225