Shield tunnel segment prefabrication method

A shield segment and pre-steaming technology, applied in manufacturing tools, ceramic molding workshops, ceramic molding machines, etc., can solve the problems of low degree of automation and low production efficiency, and achieve the effect of promoting development and improving turnover utilization rate.

Inactive Publication Date: 2015-06-17
CCCC THIRD HARBOR ENG +1
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Problems solved by technology

[0005] Aiming at the problems of low degree of automation and low production efficiency in the existing shield segment prefabrication production, the purpose of the present invention is

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  • Shield tunnel segment prefabrication method

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[0019] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0020] Rail transit has the characteristics of large capacity, fast speed, safety, punctuality, environmental protection, energy saving and land use. Rail transit has been developed into a backbone urban public transportation system.

[0021] During the construction of rail transit, a large number of shield segments are required. For example, Xiamen Rail Transit Line 1, as the most important central radial backbone line in the planning network of Xiamen City, radiates from the island to the north to form a cross-sea tunnel. The fast connection channel has a line length of 32.865km, 15.7km on the main island and 17.165km outside the island. Among them, the length of the shield construction section is about 25km, and the shield segment is about 20...

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Abstract

The invention discloses a shield tunnel segment prefabrication method. The prefabrication method is implemented on the basis of at least one pouring line and at least one maintenance line. According to the prefabrication method, ferry vehicles are used for pushing molds completing pouring on the pouring line into the maintenance line for steam maintenance, meanwhile, molds completing steam maintenance on the maintenance line are pushed into the pouring line for demolding and repouring, and therefore cyclic circulating prefabrication of shield tunnel segments is achieved. By means of the shield tunnel segment prefabrication method, streamlined and automated production of the shield tunnel segments can be achieved, so the production efficiency of the shield tunnel segments is effectively improved, and the production cost of the shield tunnel segments is effectively lowered.

Description

technical field [0001] The invention relates to segment prefabrication technology, in particular to a prefabrication method for shield tunnel segment. Background technique [0002] The shield segment is the main assembly component of shield construction and the innermost barrier of the tunnel, which bears the role of resisting soil pressure, groundwater pressure and some special loads. The shield segment is the permanent lining structure of the shield tunnel. The quality of the shield segment is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel. [0003] The production of shield segments usually uses high-strength impermeable concrete to ensure reliable load-bearing and waterproof performance. The production mainly uses the finished segment mold to form after sealing and pouring concrete. [0004] With the vigorous development of tunnels and rail transit, a large number of shield segments ar...

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Application Information

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IPC IPC(8): B28B15/00B28B11/24
CPCB28B15/00B28B11/245
Inventor 唐建明陈加庆蔡清程廖玉珍刘晓燕
Owner CCCC THIRD HARBOR ENG
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