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Formwork trolley for the pouring of the second lining of the side wall of the tunnel and the transfer of the prefabricated segment of the vault

A formwork trolley and wall formwork technology, applied in tunnel lining, tunnel, wellbore lining, etc., can solve the problem of long preparation time, and achieve the effect of convenient positioning and demoulding, convenient transfer, and favorable positioning and installation.

Active Publication Date: 2020-04-14
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, with the increase of the cumulative mileage of railway tunnels and the further increase of the speed of railway trains, the safety requirements of railway trains in tunnels are getting higher and higher. In tunnels, the quality defects of tunnel arches seriously threaten the safety of trains. Pouring is the key to ensure the quality of the tunnel arch. The existing tunnel secondary lining is generally poured with integral formwork, which requires a lot of formwork and auxiliary equipment during the pouring process, resulting in a long preparation time

Method used

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  • Formwork trolley for the pouring of the second lining of the side wall of the tunnel and the transfer of the prefabricated segment of the vault
  • Formwork trolley for the pouring of the second lining of the side wall of the tunnel and the transfer of the prefabricated segment of the vault
  • Formwork trolley for the pouring of the second lining of the side wall of the tunnel and the transfer of the prefabricated segment of the vault

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment discloses a formwork trolley for pouring the second lining of the side wall of the tunnel and transferring the prefabricated segment of the vault, such as figure 1 , figure 2 As shown, the formwork trolley body 4 is included, and the formwork trolley body 4 is used as the overall frame of the whole trolley, on which various functional institutions or units can be arranged, and its realization forms are various.

[0042] In this embodiment, the formwork trolley body 4 specifically includes portal frames 4c arranged at both ends of the front and rear. The longitudinal direction of the car is in the same direction as the tunnel length direction.

[0043] The two portal frames 4c are respectively connected by the portal frame upper longitudinal beam 4a and the portal frame lower longitudinal beam 4b. Both the portal frame upper longitudinal beam 4a and the portal frame lower longitudinal beam 4b are two, and are arranged symmetrically on the portal frame 4...

Embodiment 2

[0058] In this embodiment, other parts are the same as Embodiment 1. The longitudinal seam end die mechanism 1 also includes the following contents:

[0059] like image 3 , 4 , 5 and 6 show that the above-mentioned raised portion comprises a vertical plate 1h vertically connected to the end of the contact plate 1g, and the direction of the vertical plate 1h is consistent with the edge of the end of the contact plate 1g; the end of the vertical plate 1h is connected with The slot template 1a perpendicular to it, and the slot template 1a is positioned at the opposite side of the contact plate 1g; the shape of the slot template 1a is two parts connected as one, and the part away from the vertical plate 1h is positioned at the top of the part near the vertical plate 1h; when contact When the plate 1g covers the upper part of the end of the side wall formwork mechanism 6, the vertical plate 1h and the groove formwork 1a are located near the side wall of the tunnel, and the end o...

Embodiment 3

[0079] In this embodiment, other parts are the same as Embodiment 1. In this embodiment, the jacking device also has the following characteristics, such as Figure 10 As shown, the device is arranged on both sides of the trolley body 4, and the trolley body 4 is used as the overall frame of the whole trolley, on which various functional institutions or units can be arranged, and its realization forms are various. The trolley 1 is used To realize the pouring of the second lining of the side wall of the tunnel and the transfer of the prefabricated segment 8 of the vault. Therefore, the two sides along the tunnel excavation direction are called both ends, and the two sides perpendicular to the tunnel excavation direction are called two sides. The invention lifts the segment 8 to a designated position for subsequent transportation and installation of the trolley.

[0080] like Figure 7 As shown, the two guide pieces 2a arranged oppositely are fixedly connected with the trolley ...

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Abstract

The invention discloses a formwork trolley for tunnel side wall secondary lining pouring and arch crown precast segment transferring. The formwork trolley comprises a formwork trolley body, a side wall formwork mechanism is arranged on each of the left side and the right side of the formwork trolley body, a longitudinal joint end mold mechanism is hinged to the top of each side wall formwork mechanism, and a power unit is arranged between each side wall formwork mechanism and the trolley body and is used for controlling the corresponding side wall formwork mechanism to move or retract in the direction of a side wall of a tunnel. According to the formwork trolley, in the tunnel side wall secondary lining pouring process, a pouring space for a side wall secondary lining is formed among eachlongitudinal joint end mold mechanism, the corresponding longitudinal seam end mold mechanism, a tunnel secondary lining inverted arch and the surface of the corresponding tunnel side wall; and installation is convenient by splicing longitudinal joint end mold devices, and the formwork trolley can also be used for transferring the arch crown prefabricated segment.

Description

【Technical field】 [0001] The invention belongs to the technical field of secondary lining construction auxiliary equipment for mining tunnels, and in particular relates to a formwork trolley for pouring the secondary lining of the tunnel side wall and transferring the prefabricated segments of the vault. 【Background technique】 [0002] A railway tunnel is a channel dedicated to train transportation. When the railway crosses mountainous areas, it is necessary to overcome elevation obstacles due to the limited traction capacity and the maximum slope requirement (less than 24%). It is a reasonable choice to excavate a tunnel to cross the mountain, and its function is to shorten the route, reduce the slope, improve the operating conditions and increase the traction capacity. [0003] At present, with the increase of the cumulative mileage of railway tunnels and the further increase of the speed of railway trains, the safety requirements of railway trains in tunnels are getting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D11/08E21D11/40
CPCE21D11/08E21D11/102E21D11/40
Inventor 王百泉高存成林春刚冯欢欢尚伟李荆谢韬张洋何峰王百群
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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