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[III-126] Example of simple groundwater flow direction measurement in middle and deep layers

*Tsubasa Metoki¹, Hikoda Ryousuke¹, Koji Nishimura¹, Hiroshi Nagai¹, Yutaka Honda² (1. East Nippon Expressway engineering Limited Company, 2. East Nippon Expressway Company Limited)

Keywords:

Groundwater flow survey,excavation structure,borehole camera,Groundwater flow preservation method

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