Boulder Prospecting Technologies for Seacrossing Shield Tunneling

doi:10.3973/j.issn.1672-741X.2012.05.016

Tunnel Construction ›› 2012, Vol. 32 ›› Issue (5): 700-704.DOI: 10.3973/j.issn.1672-741X.2012.05.016

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Boulder Prospecting Technologies for Seacrossing Shield Tunneling

YANG Yazhang

(Taishan Nuclear Power Joint Venture Co., Ltd., Taishan 529228, Guangdong, China)

Received:2012-04-17 Revised:2012-08-08 Online:2012-10-20 Published:2012-10-30

Abstract

Abstract: The successful boulder prospecting by means of marine seismic reflection CDP stacking technology adopted in the construction of the waterintake tunnel of Taishan Nuclear Power Station is analyzed, so as to reduce the construction risk of shieldbored tunnel in bouldercontaining strata. The practice demonstrates that the geophysical prospecting technology adopted is feasible for prospecting boulders under water, especially for the detection of boulders with diameter being larger than 1 m.

Key words: seacrossing tunnel, shield tunneling, boulder prospecting, pretreatment, seismic reflection wave

YANG Yazhang. Boulder Prospecting Technologies for Seacrossing Shield Tunneling[J]. Tunnel Construction, 2012, 32(5): 700-704.

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Boulder Prospecting Technologies for Seacrossing Shield Tunneling

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