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

A reinforced concrete and composite lining technology, which is applied in the field of infrastructure engineering, can solve the problems of affecting water flow conditions, complex process, high cost, etc., and achieve the effects of improving bending stiffness, clear structure type, and high economic benefits

Inactive Publication Date: 2019-11-01
GUANGDONG RES INST OF WATER RESOURCES & HYDROPOWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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

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Embodiment Construction

[0034] The present invention will be further explained and described below in conjunction with the accompanying drawings and specific embodiments of the description.

[0035] An embodiment of the present invention provides a method for constructing a reinforced concrete lining composite lining structure of a shield tunnel, including the following steps:

[0036] Reinforcement treatment is carried out on the shield segment, or the connection reinforcement position is reserved in the shield segment;

[0037] Bind or weld the connecting steel bar and the steel cage lined with reinforced concrete to form a shear bond;

[0038] Formwork the reinforcement cage and pour concrete to form a reinforced concrete lining;

[0039] Construction of shield-concrete-lined composite structure through shear bonds.

[0040] Further as a preferred embodiment, it also includes the following steps:

[0041] The internal water pressure and external water and soil pressure of the shield-concrete-li...

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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...

Claims

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Application Information

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IPC IPC(8): E21D11/00E21D11/08E21D11/10
CPCE21D11/006E21D11/08E21D11/083E21D11/10E21D11/107
Inventor 杨光华姜燕李志云贾恺徐传堡
Owner GUANGDONG RES INST OF WATER RESOURCES & HYDROPOWER
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