Construction method of reinforced concrete liner composite lining structural form of shield tunnel

Abstract

The invention discloses a construction method of a reinforced concrete liner composite lining structural form of a shield tunnel. Outer liner shield segments and inner liner reinforced concrete segments are connected together through shear bonds to be subjected to joint stress, so that flexural rigidity of a lining structure can be improved, and internal water pressure borne by the lining is increased; the structural form is clear and convenient to construct and has higher economic benefits, one effective and practical structural form can be provided for a large-diameter water transfer tunnel,especially a water transfer tunnel with high internal water pressure, and the structural form can be widely applied to the technical field of construction work.

Description

technical field [0001] The invention relates to the technical field of infrastructure engineering, in particular to a method for constructing a reinforced concrete lining composite lining structure of a shield tunnel. Background technique [0002] The current types of large-diameter water delivery tunnels are: shield lining + steel pipe lining (concrete filling inside); shield lining + reinforced concrete lining; shield lining + prestressed reinforced concrete lining, etc. type. [0003] Among them, although the lining type of shield lining + steel pipe lining (concrete filling inside) can withstand high internal water pressure, there are several problems: 1) steel pipes need to be welded in the tunnel and construction is inconvenient; 2) due to the hardening of concrete The volume shrinks, and the filling layer is difficult to fill; 3) The inner lining of the steel pipe is easy to grow freshwater shell vegetables, which affects the water-passing conditions. [0004] Shiel...

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Problems solved by technology

[0003] Among them, although the lining type of shield lining + steel pipe lining (concrete filling inside) can withstand high internal water pressure, there are several problems: 1) steel pipes need to be welded in the tunnel and construction is inconvenient; 2) due to the hardening of concrete The volume shrinks, and the filling layer is difficult to fill; 3) The inner lining of the steel pipe is easy to grow freshwater shellfish, which affects the water-passing condition

[0005] The structure of shield lining + prestressed reinforced concrete lining can be used to bear high internal water pressure, but the process is complicated, the cost is high, and the prestress will relax over time, which is not good for the durability of the water delivery tunnel

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