Integrated formwork and its construction technology for tunnel inverted arch backfill construction

A formwork and tunnel technology, which is applied in the field of integrated formwork and construction technology for tunnel inverted arch backfill construction, can solve the problems of increased workload and construction cost, easy deviation, etc., to increase workload and construction cost, and save equipment The effect of cost and convenience of movement

Active Publication Date: 2016-02-03
CHENGDU COLITT MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention uses the side ditch formed by the lining as the guide rail and positioning reference during the movement and positioning, so it is convenient to move and quickly locates, and solves the problem of easy deviation when walking on the primary concrete surface in the prior art. If the guide rail is added, it will increase The problem of workload and construction cost

Method used

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  • Integrated formwork and its construction technology for tunnel inverted arch backfill construction
  • Integrated formwork and its construction technology for tunnel inverted arch backfill construction
  • Integrated formwork and its construction technology for tunnel inverted arch backfill construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] like figure 1 - Shown in -4, a kind of integrated formwork for tunnel inverted arch backfill construction, including two groups of side wall formwork 1, an end beam 2, two groups of overturned formwork 3, two formwork through beams 4, lateral support adjustment mechanism, The vertical support adjustment mechanism and the turning mechanism, the side wall formwork 1 and the turning formwork 3 are symmetrically arranged on both sides of the end beam 2, the side wall formwork 1 and the end beam 2 are rigidly connected, the side wall formwork 1 and the turning formwork 3 are hinged, and the formwork can be passed through The rotating shaft 15 is hinged, and the formwork beam 4 is rigidly connected with the overturned formwork 3; one end of the side wall formwork 1 is provided with a supporting walking mechanism for lapping in the side ditch 5 formed by the lining, and the other end is provided with a horizontal support adjustment mechanism for vertical support. The adjustmen...

Embodiment 2

[0064] The present invention is composed of two groups of left-right symmetrical side wall formworks, one side wall formwork end beam, two sets of overturned formworks, eight support jacks, two formwork through beams, and four 3t overturned gourds.

[0065] There are four sets of limit brackets and four gourd hooks in the middle of the side wall formwork; there are jack ears on the limit bracket; there are three rollers at one end of the side wall formwork, which can be stretched and retracted through the screw; the other end is provided with two horizontal The support and the connection seat connected with the end beam; the side wall formwork is also provided with a hinge ear hinged with the flip formwork.

[0066] Both sides of the end beam are provided with connection seats connected with the side wall formwork, and two vertical support jacks are provided below. There is a hook on the top.

[0067] The upper part of the overturned formwork is provided with a hinge ear whic...

Embodiment 3

[0075] like Figure 5 Shown, the A direction on the left is the inverted arch and the backfill completed part to indicate the central drainage ditch 19, the inverted arch backfill layer 20, the side ditch 5, and the side wall 21, and the B direction on the right side is in the construction state for adopting the present invention.

[0076] like Image 6 As shown, the present invention changes the reserved opening of the seepage pipe 14 to be placed horizontally, which is not easy to be blocked, and is easy to clean, and there is always a side ditch for guide rails and positioning references in the inverted arch and backfilling.

[0077] like Figure 7 As shown, the state of prior art inverted arch and backfill completion state seepage pipe 14 reserved opening has a bend, the reserved opening of the seepage pipe is easy to block, inconvenient to clean, and there is no side ditch.

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Abstract

The invention discloses an integrated formwork for tunnel inverted arch backfill construction, and a constructing process of the integrated formwork. In the integrated formwork, a side wall formwork body and a turning formwork body are symmetrically arranged on the two sides of an end beam, the side wall formwork body is connected with the end beam in a rigid mode, the side wall formwork body is hinged to the turning formwork body, and a formwork through beam is connected with the turning formwork body in a rigid mode. One end of the side wall formwork body is provided with a supporting walking mechanism which is used for being connected in a side groove in a lap joint mode, wherein the side groove has been formed through lining. The other end of the side wall formwork body is provided with a transverse supporting and adjusting mechanism, and a vertical supporting and adjusting mechanism is arranged below the end beam. A turning formwork body supporting and adjusting mechanism is connected to the turning formwork body. One end of the turning formwork body supporting and adjusting mechanism is connected with the formwork through beam, and the other end of the turning formwork body supporting and adjusting mechanism is connected with the side wall formwork body. A limiting mechanism is arranged on the side wall formwork body. A turning mechanism is used for folding the turning formwork body and fixing the turning formwork body to the limiting mechanism. When the integrated formwork is moved and moved in position, the side groove which has been formed through lining serves as a guide rail and a positioning datum, and therefore the integrated formwork is convenient to move and can be rapidly moved in position.

Description

technical field [0001] The invention relates to a formwork for tunnel construction, in particular to an integrated formwork for tunnel invert backfill construction and a construction process thereof. Background technique [0002] The structure of modern tunnels is complex, the construction period is short, and the quality is high, which puts forward higher requirements for the innovation of construction technology. Tunnel construction mainly consists of three processes: excavation, lining and decoration. The main factors affecting the service life of the tunnel and the tunnel construction period are determined by the two processes of excavation and lining. These two processes are carried out simultaneously in the narrow space of the tunnel, requiring construction quality and not interfering with each other, which puts forward extremely high requirements for construction methods and construction management. [0003] The current construction method is: first excavation work ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
Inventor 余波
Owner CHENGDU COLITT MACHINERY MFG CO LTD
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