Combined template mechanism for mold spraying

A combined formwork technology, which is applied in the shaft lining, tunnel lining, underground chamber, etc., can solve the problems of reducing the rebound rate of concrete, concrete leakage, and aggravating concrete leakage, so as to increase the amount of concrete spraying, improve efficiency, The effect of increasing the scope of application

Pending Publication Date: 2019-02-22
SICHUAN LANHAI ENG EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the practice of spraying or pouring the initial support of the tunnel, the applicant found that the rebound rate of the concrete and the use of concrete quick-setting agents can be effectively reduced by using formwork. There will inevitably be unevenness on the surface, and there will be gaps to varying degrees between the supporting surface of the erected steel arch and

Method used

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  • Combined template mechanism for mold spraying
  • Combined template mechanism for mold spraying
  • Combined template mechanism for mold spraying

Examples

Experimental program
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Effect test

Example Embodiment

[0033] Example 1

[0034] A combined template mechanism for mold spraying, including a template group, the template group is formed by two or more single templates, which are folded / folded in the horizontal and / or vertical directions; the whole formed after the template group is unfolded The formwork can cooperate with the excavated rock surface to form at least one mould cavity; the formwork set is connected to the frame / carrier, and an opening and closing control mechanism is arranged between the single formwork of the formwork set.

[0035] Further, the template group is formed by two or more single templates that can be folded / folded in the lateral direction, and the adjacent single templates are hinged to each other and connected by an opening and closing control mechanism. The opening and closing between adjacent single templates can be adjusted. The opening and closing control mechanism is set as a lateral oil cylinder 6, and the cylinder body and the piston rod of the...

Example Embodiment

[0038] Example 2

[0039]The template group is formed by two or more single templates, which are foldable / foldable in the transverse direction. The adjacent single templates are hinged to each other and connected by an opening and closing control mechanism, which can adjust the phase Expansion between adjacent single templates. The lateral edges of the single template at the two ends of the template group are provided with a side mold mechanism 3, and the side mold mechanism 3 includes a side template assembly, and the side template assembly can be perpendicular to the direction of the connected single template. It stretches and sticks to the excavation surface of the tunnel, so that the template group, the excavation rock surface and the side mold mechanism can cooperate with each other to form a mold cavity.

[0040] The side formwork assembly is formed by a plurality of side formwork units 31 arranged in the vertical direction, and each side formwork unit 31 is respectivel...

Example Embodiment

[0043] Example 3

[0044] A combined formwork mechanism for concrete spraying, the formwork group includes a main formwork 1, a secondary formwork 2, a side formwork assembly 3, a formwork support 4, a pitching cylinder 5, a lateral cylinder 6 and a hinge seat 7, the main formwork 1 Hinged on the formwork support 4, the lateral two sides of the main formwork 1 are hinged to the auxiliary formwork 2 respectively. The lateral oil cylinder 6 is set on the middle formwork 1 as an opening and closing control mechanism, and connects and controls the opening and closing of the two auxiliary formwork 2 respectively; in this way, the integral formwork group formed by the three formwork forms a 1 one or more mold cavities.

[0045] That is, the template group is composed of three single templates, which are foldable / turned-over connected in the transverse direction. The combined formwork mechanism can cover two or more adjacent steel arches erected on the tunnel driving surface as a w...

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Abstract

The invention discloses a combined template mechanism for mold spraying. The combined template mechanism comprises a template group which is formed by connecting more than two single templates in thetransverse direction and / or the vertical direction in a foldable / turnover manner. An integrated template formed after the template group is unfolded can be matched with an excavated rock surface to form at least one mold cavity. The template group is connected to a machine frame or a carrier, and unfolding-folding control mechanisms are arranged between the single templates of the template group. The overall area of the mold cavity enclosed by the template group and a steel arch on the excavated rock surface is increased, and the amount of concrete sprayed after single movement of the template group is increased. Meanwhile, the problem of concrete leakage caused by cracks between steel arch and rock surface and between the template group and the steel arch is effectively avoided. Through a newly designed side mold mechanism, a mold cavity is formed directly among a template mechanism, the side mold mechanism and the rock surface, and the efficiency of mold spraying pouring is further improved.

Description

technical field [0001] The invention belongs to the technical field of engineering construction, in particular to a combined template mechanism for mold spraying. Background technique [0002] Among the existing tunnel engineering machinery, the concrete sprayer is a relatively common construction machinery. The working principle of the concrete spraying machine is to use compressed air to transport the pre-mixed concrete mixture to the nozzle of the spraying machine through the pipeline, and form a bundle after being mixed with accelerator. On the sprayed surface, the quick-setting agent makes the concrete set and harden quickly, thus forming a concrete support layer. Shotcrete technology has been widely used in various engineering fields due to its simple process. [0003] In order to ensure that the concrete support layer can meet the strength requirements within a certain period of time, it is necessary to add a large amount of concrete quick-setting agent to the concr...

Claims

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Application Information

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IPC IPC(8): E21D11/10
CPCE21D11/102
Inventor 蓝传雯
Owner SICHUAN LANHAI ENG EQUIP MFG CO LTD
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