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Integral drawing type tunnel boring machine (TBM) inverted arch block core mold

A pull-out and mandrel technology, used in shaft equipment, shaft lining, mining equipment, etc., can solve the problems of template deformation and long occupation time, and achieve the effect of reducing time, increasing work efficiency, reducing air bubbles and seams

Pending Publication Date: 2022-08-09
CHINA FIRST HIGHWAY ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, in order to improve the force of the upper support structure during the construction phase of the tunnel, a reverse arch structure at the bottom of the tunnel is often required. The existing tunnel construction is often prefabricated by mold casting after installing the inverted arch block mold Production, during the production process, multiple groups of inverted arch block mandrels are often connected by bolts, buckles, etc., resulting in a long time for assembly and dismantling, and the deformation of the formwork during dismantling

Method used

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  • Integral drawing type tunnel boring machine (TBM) inverted arch block core mold
  • Integral drawing type tunnel boring machine (TBM) inverted arch block core mold
  • Integral drawing type tunnel boring machine (TBM) inverted arch block core mold

Examples

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Embodiment 1

[0031] like Figure 1 to Figure 2 As shown, a kind of integral pulling type TBM inverted arch block core mold described in the embodiment of the present invention comprises inverted arch block core mold 1; the bottom surface of the inverted arch block core mold 1 is fixed with a bottom film 11; The top surface of the membrane 11 is located at the four corners and runs through a No. 1 chute 12; the interior of the multiple groups of the No. 1 chute 12 is slidably connected with a positioning rod 13; during operation, in the tunnel construction stage, with the continuous extension of the excavation depth, In order to protect the safety of the tunnel, it is often necessary to gradually lay the inverted arch blocks to disperse the stress on the supporting structure above the tunnel to both sides, and at the same time, it can effectively resist the reaction force from the lower stratum of the tunnel. The existing inverted arches are often made of reinforced concrete. Structure, the...

Embodiment 2

[0041] like Figure 7 As shown, Comparative Example 1, in which another embodiment of the present invention is: a pair of rollers 101 are rotatably connected to the top side wall of the pressing plate 24; the rollers 101 are in contact with the end of the limit block 23; When the pressing plate 24 is pushed by the linkage rod 25, the roller 101 installed on the top of the pressing plate 24 uses its own rotation to contact the end of the limit block 23, and the auxiliary limit block 23 is pushed out. , which can assist the stop block 23 to be pushed out smoothly, reduce the occurrence of jamming, and improve the stability of the equipment during operation.

[0042] During the work, in the tunnel construction stage, as the excavation depth continues to increase, in order to protect the safety of the tunnel, it is often necessary to gradually lay the inverted arch blocks to disperse the force of the supporting structure above the tunnel to both sides, and at the same time, it can...

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Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to an integral drawing type TBM inverted arch block core mold which comprises an inverted arch block core mold body. The bottom surface of the inverted arch block core mold is fixedly connected with a bottom mold; first sliding grooves are formed in the positions, located at the four corners, of the top face of the bottom film in a penetrating mode. Positioning rods are slidably connected into the multiple first sliding grooves. A pair of second sliding grooves is formed in the opposite positions, below the bottom film, of the side wall of the positioning rod. An extrusion rod is slidably connected into the second sliding groove. According to the inverted arch block core mold, the positions are determined in advance through the multiple sets of positioning rods, the inverted arch block core mold can be conveniently installed and placed subsequently, meanwhile, the connecting mode of bolts and buckles is omitted, the assembling time is shortened, the working efficiency is improved, and meanwhile position adjustment of the positioning rods is more convenient compared with overall adjustment of the inverted arch block core mold.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, in particular to an integral pulling type TBM inverted arch block core mold. Background technique [0002] Tunnels are a common traffic facility in modern society. They use tunnels to provide passage conditions for vehicles, and at the same time, they can reduce the driving distance and cross the difficult terrain. [0003] A Chinese patent with publication number CN202213043U discloses a reinforced concrete inverted arch block mold, which includes a stabilizing device for pre-embedded hangers and a stabilizing device for pre-embedded spikes. It also includes forming devices for various holes and grooves, such as core mold devices for grouting holes, core mold devices for drain holes, model devices for sealing grooves, and model devices for arch grooves. [0004] In the prior art, in order to improve the stress of the upper support structure in the tunnel in the construction stage, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/102E21D11/10Y02E10/20
Inventor 黄登侠李刚李健王晨楠高翔吴特力根杜明忱吕臻范思源周敏
Owner CHINA FIRST HIGHWAY ENG
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