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电磁波CT技术在桥墩溶洞探测中的应用研究 被引量:1

Study on the application of electromagnetic wave CT in exploration of karst cave under the bridge
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摘要 电磁波CT技术由于其勘测精度高、勘测信息丰富且高效、受干扰影响小等优点,目前已在岩溶勘测中取得广泛应用。以龙岩某大桥为例,该桥墩桩基施工采用电磁波CT技术,并结合勘探钻孔信息对所获得的图像进行解译,得出电磁波CT探测结果与地质钻孔结果基本一致、溶洞或节理裂隙发育带电磁波吸收率一般大于0.4dB/m等结论,表明了电磁波CT技术具有实际工程价值。 Electromagnetic wave CT technology has been widely used in karst exploration because of its advantages of high survey accuracy,abundant and efficient information and little interference.Based on a bridge project in Longyan city,electromagnetic wave CT technology was used in the construction of the pier foundation,and the image was interpreted in combination with the information of exploration borehole.Then it is concluded that the results of electromagnetic wave CT detection are basically consistent with the results of geological drilling,and the electromagnetic wave absorption rate is generally greater than 0.4 dB/m and so on.It shows that electromagnetic wave CT technology has practical engineering value.
作者 林伟雄 LIN Weixiong(Fujian jianyan engineering consulting Co.Ltd,Fuzhou 350100)
出处 《福建建筑》 2020年第7期37-40,共4页 Fujian Architecture & Construction
关键词 电磁波CT 溶洞 吸收率 Electromagnetic wave CT Karst cave Absorptivity
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