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可控源音频大地电磁法在公路隧道地质勘察中的应用 被引量:1

Application of Controlled Source Audio Magnetotelluric Method in Geological Survey of Highway Tunnel
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摘要 利用可控源音频大地电磁法对公路隧道进行了地质勘察研究。可控源音频大地电磁探测可以大致得到该隧道洞身范围内各地层及基岩风化层厚度、基岩起伏情况、不同岩性接触关系、构造,判明基岩裂隙水的位置及赋水情况。由于电磁探测的体积效应与地球物理探测的多解性,在施工过程中需进一步结合其他勘察手段获取更为精确的地质断面。 In this paper, the geological survey of highway tunnel was conducted with the controlled source audio magnetotelluric method. The controlled source audio magnetotelluric surveying can roughly obtain the thickness of weathered layer of each stratum and bedrock, the bedrock movement, and different lithology contact relationships and structures in the tunnel, to determine the location of bedrock crack water and the water-bearing situation. Due to the volume effect of electromagnetic surveying and multi-solution of geophysical exploration, it is necessary to combine other surveying means in the construction to acquire more accurate geological sections.
作者 苏晓璐 SU Xiao-lu(Shanxi Transportation Survey&Design Institute Co.,Ltd.,Taiyuan,Shanxi 030032,China)
出处 《山西交通科技》 2021年第5期70-73,共4页 Shanxi Science & Technology of Transportation
关键词 公路隧道 地质勘察 电磁法 highway tunnel geological survey electromagnetic method
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