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| THE APPLICATION OF OVERLAY SWITCH TO UNDERWATER SEISMIC REFRACTION EXPLORATION |
| Wang Guangquan |
| Geophysical Party of No.2 Exploration & Designing Institute of Ministry of Railways, Chengdu 610031 |
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Abstract This paper describes the application of shallow seismic refraction wave method to the exploration of foundation for railway bridges. The overlay switch and the interchange technique are employed, which can speed up field data collection and reduce the costs.
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Received: 29 December 1997
Published: 24 December 1998
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