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An arched self-supporting formwork for tunnel concrete construction and pouring

A concrete and self-supporting technology, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve the problems of trolley loading and unloading, complicated installation, difficult transportation, occupying construction space, etc., and achieves fast and convenient transfer, simplified formwork structure, The effect of easy installation

Active Publication Date: 2022-07-08
河北东风世景轨道有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of supporting gantry welded by the steel plate, which occupies the construction space and affects the demoulding during the lining construction, the weight and volume of the trolley are large, which makes transportation difficult, and the loading, unloading and installation of the trolley into the construction site are more complicated

Method used

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  • An arched self-supporting formwork for tunnel concrete construction and pouring
  • An arched self-supporting formwork for tunnel concrete construction and pouring
  • An arched self-supporting formwork for tunnel concrete construction and pouring

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Embodiment Construction

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the invention will be clearly and completely described below with reference to specific embodiments.

[0034] like Figure 1-Figure 3 , Figure 10 and Figure 11 The shown arched self-supporting formwork for tunnel concrete construction and pouring comprises an arcuate upper formwork 1 and an arcuate lower formwork 2 hinged with its left and right ends through a hinge shaft 3. The upper formwork 1 A plurality of hydraulic rods 1 4 and a plurality of brace rods 5 are arranged at the hinge joint with the lower formwork 2, and the two ends of the hydraulic rod 1 4 and the brace rod 5 are hinged with the lower part of the upper formwork 1 and the upper part of the lower formwork 2 respectively. ; The upper formwork 1 and the lower formwork 2 are evenly provided with a plurality of pouring windows. like figure 1 As shown, the upper die plate 1 and the lower die plate 2 a...

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Abstract

The invention relates to an arched self-supporting formwork used for tunnel concrete construction and pouring. One or more brace rods, the first hydraulic rod and the two ends of the brace rod are hinged with the lower part of the upper formwork and the upper part of the lower formwork respectively; the bottom of the lower formwork is provided with a plurality of joists along the length direction, the A through hole is vertically arranged on the beam, and a longitudinal beam is arranged in the through hole to move up and down, a connecting plate is arranged on the upper part of the longitudinal beam, a screw rod is vertically arranged on the joist, and the upper end of the screw rod is one. After passing through the connecting plate, a threaded sleeve is screwed, the tops of the plurality of longitudinal beams are fixedly connected with the same beam, and no less than two joists are fixed with two hydraulic rods. The telescopic rods correspond to the transverse beams; a clamping seat corresponding to the clamping grooves on both sides of the pouring layer is arranged under the longitudinal beam, and a tensioning device for exerting a force on the longitudinal beam is arranged on the clamping seat.

Description

technical field [0001] The invention belongs to the technical field of tunnel pouring equipment, and particularly relates to an arched self-supporting formwork for tunnel concrete construction and pouring. Background technique [0002] At present, when the highways, railways and high-speed railways built in my country pass through mountainous areas, tunnels need to be excavated. The lining trolleys for concrete construction in tunnel construction usually use lining trolleys welded by steel plates. Uniformly welded support gantry. The patent with the publication number CN206801592U discloses a hydraulic lining trolley used for concrete pouring in tunnel Mingdong, which includes a trolley gantry system, a traverse system, a walking system, a top formwork, a side formwork and a screw adjustment system. The side surface of the trolley gantry system is connected with the side formwork through the screw adjustment system, and the top formwork is connected with the upper edge of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
CPCE21D11/10E21D11/102Y02E10/20
Inventor 刘工念王立强孙宝明孙晓勇刘宇光李德斌李成才薛胜洲杨飞张金国刘志怀
Owner 河北东风世景轨道有限公司
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