摘要
岩溶是基础设施建设的重大地质隐患,地震映像法因其具有快速、便捷的特点成为探测岩溶的重要手段。本文介绍了地质映像法的工作原理、工作流程和岩溶在地震映像图上的基本特征,并应用该方法对西南一高速铁路隧道隧底进行探测,探明了溶洞和溶蚀裂隙发育区。通过现场钻孔验证了地震映像法在岩溶探测中的准确性。对地震映像法数据的处理提出建议,确保地震映像图效果良好。
Karst is a major geological hazard in infrastructure construction.Seismic imaging method is an important means to detect karst with its fast and convenient characteristics.This paper introduced the working principle,working process and karst basic characteristics in seismic imaging map of the seismic imaging method,and applied this method to detect the bottom of one high speed railway tunnel in Southwest,and explored the karst cave and the karst corrosion fracture development areas.The accuracy of seismic imaging method in karst detection is verified by field drilling.Suggestions for the data processing of seismic imaging method are proposed to ensure the good effect of seismic imaging map.
作者
王兆宁
WANG Zhaoning(Infrastructure Inspection Research Institute, China Academy of Railway Sciences, Beijing 100081, Chin)
出处
《铁道建筑》
北大核心
2018年第6期80-82,共3页
Railway Engineering
基金
中国铁路总公司科技研究开发计划(2016G005-B)
关键词
铁路隧道
地震映像
现场试验
岩溶
偏移距
Railway tunnel
Seismic imaging
Field test
Karst
Offset distance
