Prefabricated assembly type tunnel inverted arch, tunnel structure and construction method of tunnel structure
A prefabricated assembly and tunnel structure technology, applied in the direction of tunnels, tunnel linings, shaft equipment, etc., can solve the problems of increasing labor intensity of workers, which cannot be effectively solved, and low degree of mechanization, so as to prevent uneven stress on the tunnel and avoid hidden dangers in quality , the effect of saving resources and energy
Pending Publication Date: 2017-11-24
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +3
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Problems solved by technology
This construction method has a low degree of mechanization and cannot effectively solve common defects such as delamination, cracking, bottom heaving, subsidence, mud turning, etc. in the tunnel base, which leads to the inability to guarantee the quality. Disadvantages such as labor intensity and low construction efficiency
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[0033] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are only used to illustrate the present invention, but can not be used to limit the scope of the present invention.
[0034] figure 1 A preferred embodiment of a tunnel structure according to the invention is shown. As shown in the figure, the tunnel includes primary support 1 and secondary lining 2, wherein the secondary lining 2 includes tunnel arch walls 22 and tunnel inverts 21, wherein the tunnel invert 21 is a prefabricated tunnel invert, which includes A plurality of rows of assembly units arranged in sequence along the extension direction of the tunnel, each row of assembly units includes a plurality of assembly blocks 3 with arc-shaped cross-sections, and the seams between adjacent assembly blocks 3 in each row of assembly units are consistent with the adjacent assembly The...
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The invention relates to the technical field of tunnel engineering and discloses a prefabricated assembly type tunnel inverted arch. The prefabricated assembly type tunnel inverted arch comprises multiple rows of splicing units sequentially arranged in the extending direction of a tunnel. Each row of the splicing unit comprises multiple splicing blocks with arc-shaped cross sections. Joint seams of adjacent splicing blocks in the splicing units and joint seams of adjacent splicing blocks in the adjacent splicing units are staggered. Connecting rebars connected with a tunnel arch wall are reserved at the tops of the outer side faces of the prefabricated blocks on the two sides of each row of the splicing unit. In the building process of the prefabricated assembly type tunnel inverted arch and a trench structure, the prefabricated assembly type tunnel inverted arch has the beneficial effects that the resource energy is saved, the construction pollution is reduced, the labor production efficiency is improved, the labor intensity of workers is lowered, and the quality safety level is increased; and the potential hazards that the stress of the tunnel is not uniform, the deformation is likely to generate and the cracking is likely to generate can be prevented. The invention further discloses a tunnel structure with the prefabricated assembly type tunnel inverted arch and a construction method of the tunnel structure.
Description
technical field [0001] The present invention relates to the technical field of tunnel engineering, relates to a prefabricated and assembled tunnel invert, and also relates to a tunnel structure including the above-mentioned prefabricated and assembled tunnel invert, and a construction method of the tunnel structure. Background technique [0002] At present, the tunnel structure is divided into tunnel inverted arch, tunnel arch wall, filling layer, drainage system, etc. Among them, the tunnel chamber is excavated manually or mechanically, and then the initial support is applied, and the cast-in-place tunnel inverted arch adopts on-site binding steel bars , and then the way of pouring concrete. This construction method has a low degree of mechanization and cannot effectively solve common defects such as delamination, cracking, bottom heaving, subsidence, mud turning, etc. in the tunnel base, which leads to the inability to guarantee the quality. Labor intensity, low construct...
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IPC IPC(8): E21D11/10E21D11/38E21F16/02
CPCE21D11/102E21D11/38E21F16/02
Inventor 马伟斌林传年张千里王志伟张斌付兵先安哲立杜晓燕马超锋郭小雄牛亚彬邹文浩李尧赵鹏余东洋王子洪张文达
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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