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The Application of Integrated Geophysical Prospecting to the Karst Detection of Urban Rail Transit

Li Wenwen;Li Guangchang;Zhejiang Huadong Engineering Safety Technology Co.,Ltd.;  
According to the geological and environmental conditions of Heshan road station to Phoenix park station in Hangzhou metro line 6,karst exploration is carried out by means of comprehensive geophysical prospecting.The geophysical prospecting method of highdensity electrical method is used in the survey stage,and the geophysical prospecting methods of seismic wave CT,electromagnetic wave CT and ground penetrating radar are used in the investigation stage.The comprehensive geophysical prospecting method has identified the karst spatial distribution and scale from Heshan road station to Phoenix park station.Through drilling verification,the results of geophysical prospecting are reliable and the detection effect is good.
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