Construction method of super-large longitudinal slope tunnel secondary lining trolley
A technology of secondary lining and trolley, applied in tunnel lining, tunnel, shaft lining and other directions, can solve the problems of high input manpower, many construction procedures, hidden safety hazards, etc., to speed up construction progress, reduce personnel input, and increase stability. Effect
Active Publication Date: 2020-12-11
CHINA TIESIJU CIVIL ENG GRP CO LTD
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Problems solved by technology
In the construction of super-longitudinal slope tunnels, on the one hand, due to the gravity of the trolley itself, and on the other hand, the trolley has downward and horizontal force components during the concrete pouring process, resulting in risks such as "slipping" and "head tilting" of the trolley , causing safety hazards
[0003] In order to ensure construction safety, the cast-in-place formwork support method is generally used in the construction of super-longitudinal slope tunnels. However, this method has many construction procedures, and has defects such as large manpower investment, long construction period, and high cost.
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] It should be noted that "fixed", "fixedly connected", "installed" and the like in the present invention all mean that two parts connected to each other are fixed together, usually by means of welding, screwing or gluing.
[0033] In the description of the present invention, the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" etc. are based on the drawings The orientations or positional relationships shown are only for the convenience of describing the present inv...
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The invention discloses a construction method of a super-large longitudinal slope tunnel secondary lining trolley. The construction method comprises the following steps that an anti-skid stop block isinstalled at the bottom of one end of a longitudinal beam on the trolley; an end formwork is reinforced; after the trolley is in place, a trolley walking system is locked by using an iron shoe; in order to prevent the trolley from overturning downwards when first-section secondary lining concrete is poured, a balance weight is added to the tail of a portal of the trolley; in the construction process, a stabilizing assembly is arranged to be used for stabilizing the trolley so as to prevent the risks of trolley sliding, head warping and the like; and the stabilizing assembly comprises an anti-sliding structure, a supporting lead screw structure located at the bottom of the trolley and a supporting structure used for supporting the trolley in the gravity direction. According to the construction method of the super-large longitudinal slope tunnel secondary lining trolley, the anti-skid stop block is arranged, the end formwork is reinforced, and therefore the stability of the structure ofthe trolley can be improved; and the stabilizing assembly is arranged, and therefore the stability of the trolley on a steel rail can be effectively improved, accidents such as trolley sliding can beavoided, the construction efficiency can be improved, and the construction cost can be reduced.
Description
technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a construction method of a secondary lining trolley for super-longitudinal slope tunnels. Background technique [0002] In tunnel construction, the secondary lining is generally constructed with trolleys, and the construction is carried out by trolleys, which has high construction efficiency. In the construction process of the trolley method, in order to avoid the risk of slipping when the trolley travels, it is generally required that the maximum longitudinal slope of the road tunnel is not greater than 4%, and the maximum longitudinal slope of the railway tunnel is not greater than 2%. value, it is called super-longitudinal slope tunnel. In the construction of super-longitudinal slope tunnels, on the one hand, due to the gravity of the trolley itself, and on the other hand, the trolley has downward and horizontal force components during the pouring of c...
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IPC IPC(8): E21D11/10
CPCE21D11/10E21D11/105E21D11/102
Inventor 孙志远郭洪涛柴相庆欧华张鹏
Owner CHINA TIESIJU CIVIL ENG GRP CO LTD