Manufacturing method of horizontal concrete shear bond for tunnel immersed pipe joint
A technology of concrete and shear keys, applied in water conservancy projects, underwater structures, artificial islands, etc., can solve problems such as high strength, difficult protection of steel bars, and difficulty in cutting out concrete
Inactive Publication Date: 2017-11-28
ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
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[0009] A method for manufacturing a horizontal concrete shear key of a tunnel immersed pipe joint, characterized in that, when the corbel is prefabricated, axial steel bars and connectors 4 are buried between the existing evenly distributed steel-sealed door locking piles 3, and the steel-sealed door is locked The front end of the pile 3 is buried with vertical steel bars and connectors 5; after the docking of the front immersed tube 1 and the rear immersed tube 2 is completed, the steel seal door 8 is removed, and the axial steel bars on the corbel 7 of the front immersed tube 1 and the rear immersed tube 2 are adjusted And the connector 4 and the vertical reinforcement and the connector 5, so that the axis reinforcement on the immersed tube corbel of the front section and the axis reinforcement on the rear section of the immersed tube bolster cross shear, and the vertical reinforcement and the axis reinforcement intersect at the same time, and Rebar binding is performed on th...
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Provided is a method for manufacturing a horizontal concrete shearing key of a tunnel immersed tube joint. When sleeper beams are prefabricated, axis reinforcement and connectors are buried between steel seal door locking piles, and vertical reinforcement and connectors are buried in the front ends; after butt joint of a front immersed tube section and a rear immersed tube section is completed, a steel seal door is dismounted, the axis reinforcement and connectors and the vertical reinforcement and connectors on the front immersed tube sleeper beam section and the rear immersed tube sleeper beam section are adjusted, and axis reinforcements on the front immersed tube sleeper beam section and axis reinforcements on the rear immersed tube sleeper beam section are shorn in a crossing manner; and meanwhile, the vertical reinforcements and the axis reinforcements cross, the crossed axis reinforcements and vertical reinforcements are bound, and then concrete pouring is carried out. According to the method for manufacturing the horizontal concrete shearing key of the tunnel immersed tube joint, the sleeper beam axis reinforcement and connectors and the vertical reinforcement and connectors are buried when the sleeper beams are prefabricated, the vertical reinforcements meeting a shearing key structure are connected through the reinforcement after the sleeper beams are slightly finished and chiseled, finally, the aim of utilizing an existing concrete structure is achieved, and the economic and environmental protection effects are achieved.
Description
technical field [0001] The invention relates to tunnel immersed pipe joint technology, in particular to a method for manufacturing horizontal concrete shear keys of tunnel immersed pipe joints. Background technique [0002] The tunnel immersed pipe joint connection is mainly composed of axial PC cable, vertical steel shear key and horizontal horizontal reinforced concrete shear key. The concrete shear key for steel bar construction in the prior art is to chisel all the concrete of the corbel beam after the pipe joint is placed butt jointed and the door is removed, and the vertical main reinforcement is retained. After correction, it is used as the main vertical steel bar of the shear key, and then the remaining Made of steel and poured concrete. This technical solution has many problems such as difficulty in cutting out concrete (high strength of immersed tube concrete), difficult protection of steel bars (vertical steel bars of original corbel need to be retained). Conte...
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IPC IPC(8): E02D29/063E02D29/16
CPCE02D29/063E02D29/16
Inventor 胡景军李志军文哲彭再勇王秋林柯斌邵阳邓小新肖洪刘刚赵文龙崔玉国刘敏柯友华曾珂胡斌赵康林张小红龚学栋谢海金
Owner ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP