A method for installing a buried waterstop in the end of a tunnel lining trolley
A technology of lining trolley and installation method, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of waterstop displacement, small space, and inconvenient operation for construction personnel, so as to improve positioning accuracy, improve work efficiency, The effect of improving construction quality
Inactive Publication Date: 2016-02-17
ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP
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Problems solved by technology
The installation structure of the buried waterstop used in the tunnel is complicated to install, the space is small, and the construction personnel are inconvenient to operate
[0005] The tunnel lining formwork in the prior art generally adopts a self-propelled hydraulic formwork trolley, and the arch wall lining concrete is poured into one-time molding. The positioning stirrups of the type waterstop are fixed on the wooden formwork at the end. Generally, the end formwork needs to be reinforced before the mid-buried waterstop is fixed. It is very inconvenient for construction personnel to operate; the mid-buried waterstop is used for positioning The stirrup fixes the waterstop on the end formwork. Due to the limitation of environmental conditions, the fixation is not firm. When the lining concrete is poured, the waterstop is often displaced, resulting in uneven embedding of the waterstop and the waterstop between the construction joints. The water loses its effect, and the installation of buried waterstops in the concrete construction joints of the tunnel lining becomes a difficult point for tunnel drainage
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[0029] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0030] figure 1 It is a schematic diagram of the work of the buried waterstop described in the prior art, such as Figure 2-5 As shown, a method for installing a buried waterstop at the end of a tunnel lining trolley according to the present invention uses a combined structure of two-layer arc formwork and end wood formwork 11, and the two-layer arc formwork is the inner Arc formwork 7 and outside arc formwork 9.
[0031] The inner curved template 7 and the outer curved template 9 are "L" shaped templates, the side of the inner curved template 7 and the outer curved template 9 contacting the concrete surface is cut with a 10mm thick steel plate, and the inner The length of the arc formwork 7 in contact with the concrete is determined according to the position of the waterstop, and the overlapping length of the inner arc formwork ...
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The invention relates to an installation method of a buried waterstop at a tip of a tunnel lining trolley. The installation method comprises the following steps: installing a formwork trolley in place; installing an inner arc-shaped template; installing the buried waterstop; installing an outer arc-shaped template; clamping and reinforcing a wood template at the tip; pouring concrete; and stripping to maintain. The installation method of the buried waterstop at the tip of the tunnel lining trolley, disclosed by the invention, has the advantages that the erecting and stripping procedures at the tip of the trolley are simplified by the installation method; the work efficiency is improved; especially the positioning accuracy of the buried waterstop is improved; the waterstop is completely protected; the labor intensity of a worker is reduced; the construction quality of waterstop installation in tunnel lining construction is improved; the installation method is safe and reliable.
Description
technical field [0001] The invention relates to the technical field of tunnel engineering construction equipment, in particular to a method for installing a buried waterstop in the end of a tunnel lining trolley. Background technique [0002] In recent years, with the development of China's economic construction and the continuous acceleration of the urbanization process, the demand for infrastructure, especially the construction of transportation facilities, has been increasing, and a large number of tunnel projects have appeared, and the scale has become larger and larger. [0003] At present, the design life of high-grade transportation civil engineering in China is 100 years, so the environmental requirements for concrete engineering are very high. Especially in tunneling projects underground, the structural concrete is at risk of being surrounded by water. Once the tunnel structure leaks, it first affects the structural life of the concrete, and then affects the operat...
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IPC IPC(8): E21D11/38
Inventor 乐晟杨春勃杨艳玲黄学军刘争刚段杰玉陈军时思鹏胡景军李志军赵康林胡忠宝王光伟
Owner ERCHU CO LTD OF CHINA RAILWAY TUNNEL GRP