Abstract The construction of a secondary cofferdam of an immersed tunnel is directly related to the safety of the foundation pit during the construction of the main structure onshore, as well as the construction schedule of the immersed tunnel and related costs. This paper introduces the underwater undispersed concrete technique applied in the construction of a secondary cofferdam of an immersed tunnel.
Keywords ：
Immersed tube tunnel Secondary cofferdam Construction technique
Abstract ：
The construction of a secondary cofferdam of an immersed tunnel is directly related to the safety of the foundation pit during the construction of the main structure onshore, as well as the construction schedule of the immersed tunnel and related costs. This paper introduces the underwater undispersed concrete technique applied in the construction of a secondary cofferdam of an immersed tunnel.
Keywords ：
Immersed tube tunnel Secondary cofferdam Construction technique
published: 2011-07-25
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2011, Vol. 48 