EH4电磁成像系统在岩溶地区铁路桥梁墩台勘查中的应用与分析

Application of EH4 Electromagnetic Imaging System to Railway Bridge Pier Exploration in Karst Area

为查清叙永至古蔺铁路大村段桥梁地下存在的隐伏岩溶、断层、暗河等复杂工程地质问题,应用EH4电磁成像系统进行勘探。通过与已知的地质和钻孔资料结果的对比,证实了EH4电磁成像系统反演结果与实际资料地质情况较为吻合,由此表明EH4电磁成像系统在研究一些复杂地质灾害方面的可行性和有效性,为铁路桥梁工程地质的研究工作提供依据。

In order to solve such complex engineering geological problems as the existence of buried karst,faults,under-ground rivers and so on in Xuyong-Gulin railway bridge section,we adopted the EH4 electromagnetic imaging system.Compared with the known geological and borehole results,EH4 electromagnetic imaging system inversion results were confirmed to be consistent with the actual geological situation,which indicated the feasibility and effectiveness of EH4 electromagnetic imaging system for the study of some complex geological disasters,and also provided the evidence for the railway bridge engineering geology study.