Large-volume lining model pouring device for tunnel model test and method of large-volume lining model pouring device

Abstract

The invention provides a large-volume lining model pouring device for a tunnel model test and a method of the large-volume lining model pouring device. The large-volume lining model pouring device comprises an inner formwork and an outer formwork, wherein the outer formwork sleeves on the outer side of the inner formwork; the inner formwork is formed by splicing three or more inner mold arc plates; the outer formwork is formed by splicing three or more outer mold arc plates; a grout stop bar is arranged between a spliced position of the adjacent inner mold arc plates and the spliced position of the adjacent outer mold arc plates. Compared with an existing lining model pouring device, the large-volume lining model pouring device disclosed by the invention has the advantages that vertical grout stop bars are used for filling joint seams at the spliced positions of the formworks so as to prevent grout exposure on the side surface during a pouring process and also provide a certain operation space for a subsequent mold dismounting process, so that convenience is provided for demolding of a large-volume lining model; bottom grout stop rings are used for filling the clearance between the inner and outer formworks, so the bottom can be prevented from grout exposure, and mutual positioning between the inner formwork and the outer formwork can be controlled as well so as to guarantee that the geometric dimensioning of the lining mode satisfies design requirements.

Description

technical field [0001] The invention relates to a large-volume lining model pouring device and method for tunnel model tests. Background technique [0002] Model test is a test method that uses a model instead of a prototype to conduct test research according to a certain geometric and physical relationship, and uses the research results for the prototype. In the model test related to tunnel engineering, the tunnel lining model is usually made by the following method: customizing the steel mold according to the geometric dimensions of the lining model, injecting gypsum slurry or cement mortar in a flow-plastic state, and waiting for the slurry to solidify and fully dry. , remove the steel mold, and get the lining model for the test. [0003] If the design section of the lining model is large and the design length is long, the contact area between the lining model and the steel mold will also increase significantly accordingly. At this time, it is difficult to demould the la...

AI Technical Summary

Problems solved by technology

[0004] The present invention improves on the above problems, that is, the present invention aims to solve the technical problems existing in the production process of the existing tunnel lining model, such as the difficult demoulding of the lining and the difficulty in controlling the geometric dimensions.

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