研究目的：胶州湾隧道需穿越海底断层破碎带，因工程地质勘察手段的局限性，决定了勘测阶段的地质资料不足。
Research purposes: Jiaozhou Bay Tunnel is needed to cross the seabed fault zone, but a little survey geological data are obtained because of the means limitation of engineering survey.
介绍青岛胶州湾湾口海底隧道的工程概况和国内小间距隧道的研究现状。
The subsea tunnel engineering that lies at Jiaozhou Bay in Qingdao is introduced, as well as the research status of little distance parallel tunnels in China.
胶州湾海底隧道是中国自行建造的第二条海底隧道，其服役寿命为100 a。
Kiaochow Bay subsea tunnel is the second self-building tunnel in China with the designed service life over 100 years.
胶州湾海底隧道是中国自行建造的第二条海底隧道，其服役寿命为100 a。
Kiaochow Bay subsea tunnel is the second self-building tunnel in China with the designed service life over 100 years.
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