【摘要】 沙午铁路某段受铁矿采空区影响,出现地面塌陷下沉。以瞬变电磁为主要技术方法对该段铁路沿线及周围进行勘查,采用电阻率测深加强铁路沿线勘探,查明了采空区的分布位置、范围以及空间特征等,提高了准确性,取得了良好效果。勘探成果可为地面安全和采空区治理提供可靠的技术支持,为铁路安全运营提供保障。更多还原

【Abstract】 The exploitation of iron ore near Shawu Railway(at 40 km+870 m) has led to the overlying rock distortion and collapse above gob areas and the earth surface subsidence.Such a situation not only affects the railway transportation but also endangers the safety of lives and property of the adjacent villagers.In this study,TEM served as the primary technique and IP sounding was used to strengthen the investigation along the railway.The location,limits and spatial characteristics of the gob areas were detected through the combination of the two methods.The accuracy of the investigation was increased and the effect was fine.The exploration results can provide reliable technical support for surface safety and gob treatment,and can also supply protection to railway operation.更多还原