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Open cut tunnel concrete formwork structure

A technology for concrete formwork and open-cut tunnels, which is applied to underwater structures, infrastructure engineering, construction, etc., and can solve the problems that the water-stop screw cannot continue to be used, damage the integrity of the water-stop screw, and increase the work burden, etc., to achieve Light weight, convenient for workers to operate, and cost-saving effect

Active Publication Date: 2022-03-18
中电建路桥集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional water-stop screw is a one-piece structure, usually a whole piece of full-thread screw, with a water-stop sheet welded in the middle or an expansion water-stop ring to prevent water from passing through the basement wall. When removing the formwork, it is necessary to Saw off the two ends of the water-stop screw exposed outside the wall. On the one hand, it will increase the workload of demolition, and on the other hand, it will also destroy the integrity of the water-stop screw, making the water-stop screw unusable, thereby increasing the cost of use.

Method used

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  • Open cut tunnel concrete formwork structure
  • Open cut tunnel concrete formwork structure
  • Open cut tunnel concrete formwork structure

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Embodiment Construction

[0036] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood a...

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Abstract

The invention provides a concrete formwork structure for an open-cut tunnel, which includes a sidewall concrete formwork, a central concrete formwork, a cone-shaped water-stop screw and a quick disassembly device for the formwork. The formwork is set in the middle of the tunnel through brackets, and the two side wall concrete formworks are respectively installed on both sides of the middle concrete formwork through a number of tapered water-stop screws. The unit templates are connected through the quick release device of the templates. The invention can splice the side wall concrete formwork and the middle concrete formwork through the unit formwork that is easy to install and disassemble, and can splice the unit formwork through the quick disassembly device of the formwork, which can improve the construction efficiency, and at the same time, it can also be done by using the conical water-stop screw The purpose of quick disassembly and recycling.

Description

technical field [0001] The invention belongs to the field of open-cut tunnel construction, in particular to a concrete formwork structure of an open-cut tunnel. Background technique [0002] During the construction of open-cut tunnels, it is necessary to excavate the ground. After the excavation is completed, the bottom surface and side walls of the tunnel must be constructed by pouring concrete. The traditional formwork mostly adopts an integrated structure. After the construction is completed , causing certain difficulties for recycling, so a formwork that is more convenient to install and disassemble and has a lighter overall quality is needed. To improve the work efficiency and complete the assembly and disassembly of the formwork faster, a quick disassembly device for the formwork is required; the water stop screw is usually used for the pouring of the basement shear wall to fix the formwork and control the thickness of the concrete pouring. There is a water-stop sheet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/05E02D31/02
CPCE02D29/05E02D31/02
Inventor 蒲文明张胜傲日奇朗
Owner 中电建路桥集团有限公司
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