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Supporting device for tunnel portal construction and construction method thereof

A technology for supporting devices and tunnels, which is used in mining devices, earth-moving drilling, temporary shielding, etc., can solve problems such as narrow application range and can not adapt to openings with different slopes, etc., and achieves large effective contact area and good supporting effect. , the effect of improving safety

Active Publication Date: 2021-06-18
CCCC TUNNEL ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a support device for tunnel entrance construction and its construction method in order to solve the problem that the existing support device for tunnel entrance construction cannot be adapted to openings with different slopes and has a narrow application range.

Method used

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  • Supporting device for tunnel portal construction and construction method thereof
  • Supporting device for tunnel portal construction and construction method thereof
  • Supporting device for tunnel portal construction and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1-10 As shown, a support device for the construction of a tunnel opening includes a base 1, and the top of the base 1 is fixedly connected with two symmetrically arranged sleeves 15, and the inner wall of one side of the sleeve 15 is slidably connected with a lifting rod 10, and the lifting rod 10 One side of the 10 is provided with a fixing assembly for fixing the elevating rod 10, and the tops of the two elevating rods 10 are fixedly connected with the same semicircular support plate 14, and the inner wall of the semicircular support plate 14 is fixedly connected with a second A fixed plate 26, the bottom of the first fixed plate 26 is provided with a lifting assembly for lifting the first fixed plate 26, the top of the base 1 is fixedly connected with a bearing 6, and the inner wall of the bearing 6 is rotatably connected with a rotating cylinder 7, and the rotating cylinder 7 The outside of the semicircular support plate 14 is fixedly connected with ...

Embodiment 2

[0055] This embodiment is as a further improvement of the previous embodiment: as Figure 1-10 As shown, a support device for the construction of a tunnel opening includes a base 1, and the top of the base 1 is fixedly connected with two symmetrically arranged sleeves 15, and the inner wall of one side of the sleeve 15 is slidably connected with a lifting rod 10, and the lifting rod 10 One side of the 10 is provided with a fixing assembly for fixing the elevating rod 10, and the tops of the two elevating rods 10 are fixedly connected with the same semicircular support plate 14, and the inner wall of the semicircular support plate 14 is fixedly connected with a second A fixed plate 26, the bottom of the first fixed plate 26 is provided with a lifting assembly for lifting the first fixed plate 26, the top of the base 1 is fixedly connected with a bearing 6, and the inner wall of the bearing 6 is rotatably connected with a rotating cylinder 7, and the rotating cylinder 7 The outs...

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Abstract

The invention relates to a supporting device for tunnel portal construction and a construction method thereof, and belongs to the technical field of tunnel portal construction. The supporting device for tunnel portal construction is characterized in that two symmetrically arranged sleeves are fixedly connected to the top of a base, wherein lifting rods are slidably connected to the inner walls of one sides of the sleeves, fixing assemblies for fixing the lifting rods are arranged on one sides of the lifting rods, the tops of the two lifting rods are fixedly connected with the same semicircular supporting plate, and the inner wall of the semicircular supporting plate is fixedly connected with a first fixing plate. The supporting device is compact in structure, the lifting function of the whole device can be realized through the forward and reverse rotation of a forward and reverse rotation motor, during disassembly, only bolts need to be screwed out, a second pulling plate is transversely pulled by hands, the operation is rapid and convenient, time and labor are saved, the arrangement of a convex block can adapt to the portal with different slopes, the application range is wide, an alarm assembly is arranged, so that the safety of constructors is protected to a great extent, the structure is simple, and the operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of tunnel opening construction, and relates to a support device for tunnel opening construction and a construction method thereof. Background technique [0002] The function of the tunnel portal is to maintain the stability of the upward slope of the tunnel entrance and the side slope of the cutting; to collect and discharge ground water flow; to facilitate construction and processing. The main forms of tunnel portals are: 1. Ring frame portals. Slightly protrude the lining out of the cave to increase its thickness to form a ring frame at the entrance of the cave, which is suitable for occasions where the stone at the entrance of the cave is hard, the terrain is steep and there is no drainage requirement. 2. End wall type portal. It is suitable for openings with open terrain and basically stable strata; its function is to support the upward slope of the opening and collect and discharge the water flow on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D19/04E21F17/18
CPCE21D19/04E21F17/18Y02E10/20
Inventor 郭锋锋刘解放张永杰孙卫松黄思凝
Owner CCCC TUNNEL ENG
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