摘要
为解决盾构隧道施工过程中孤石带来的风险,以台山核电站取水隧洞工程为例,介绍了孤石对盾构施工的危害及处理措施,从物探方法、探测设备、探测范围等多个方面介绍了探测技术,证明采用地震反射波CDP叠加技术进行孤石探测是可行的,并通过钻孔验证了物探成果的准确性。尤其对于1 m以上的孤石探测较为准确。
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 tech- nology adopted is feasible for prospecting boulders under water, especially for the detection of boulders with diameter be- ing larger than 1 m.
出处
《隧道建设》
2012年第5期700-704,共5页
Tunnel Construction
关键词
越海隧道
盾构施工
孤石探测
预处理
地震反射波
sea-crossing tunnel
shield tunneling
boulder prospecting
pretreatment
seismic reflection wave
