Method for arranging reinforcing ribs in long-span tunnel lining model in geomechanical model test

A model test and geomechanics technology, which is applied to ceramic forming linings, molds, ceramic forming cores, etc., can solve problems such as limited scope of application, embedding of reinforcing bars, and difficulty in simulating reinforced concrete materials to ensure accuracy and reduce test costs. cost, effect of ensuring dimensional and structural integrity

Active Publication Date: 2020-10-16
CHANGAN UNIV
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Problems solved by technology

The prefabricated device cannot embed reinforcing ribs inside the mold, so it is difficult to truly simulate the on-site reinforced concrete materials, and the scope of application is limited

Method used

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  • Method for arranging reinforcing ribs in long-span tunnel lining model in geomechanical model test
  • Method for arranging reinforcing ribs in long-span tunnel lining model in geomechanical model test
  • Method for arranging reinforcing ribs in long-span tunnel lining model in geomechanical model test

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[0048] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0049] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0050] like figure 1 As shown, the traditional secondary lining of the tunnel includes a concrete structure and...

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Abstract

The invention discloses a method for arranging reinforcing ribs in a long-span tunnel lining model in a geomechanical model test. The method comprises the steps of calculating parameters of the reinforcing ribs in a secondary lining model, prefabricating a secondary lining model mold, pouring a concrete equivalent material in a pouring cavity and the like. According to the method for arranging thereinforcing ribs in the long-span tunnel lining model in the geomechanical model test, through a similar equivalent scaling design method, the parameters such as the reinforcing rib reinforcement ratio and the reinforcing rib section area matched with a secondary lining prototype are obtained through calculation according to a mechanical model, a prefabricating device of a tunnel secondary liningscaling model is developed, arrangement of the reinforcing ribs in the secondary lining model is achieved, the prepared model truly simulates a concrete material of a tunnel site, and the accuracy ofa mechanical test is ensured; and according to the scheme, the action mechanism of steel bars in the lining can be simply and efficiently simulated, an arranging device for the steel bar similar materials is manufactured through the method, and the device is accurate in steel bar positioning, easy to disassemble, low in manufacturing cost and capable of being widely applied to tunnel lining modeltests.

Description

technical field [0001] The invention belongs to the field of geomechanics model tests and specifically designs a method for arranging reinforcing ribs in a large-span tunnel lining model for geomechanics model tests. Background technique [0002] At present, my country is the country with the largest scale, the largest number of tunnel projects and the fastest construction speed in the world. Due to the uncertainty of influencing factors such as geological conditions, climatic conditions, support design parameters, building material properties, and operation and maintenance conditions, a large number of tunnels in operation have suffered disasters such as lining cracks, falling off blocks, etc., which seriously affect the service performance and life of the tunnels. It even threatens the safety of driving in the tunnel, causing traffic blockage, casualties and other serious consequences and adverse social impacts. [0003] The geomechanical model test is a method of scaling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/14B28B7/18B28B7/28B28B7/36B28B7/34B28B23/02G06F30/20G06F30/13G01N1/28
CPCB28B1/14B28B7/18B28B7/28B28B7/364B28B7/34B28B7/348B28B23/024G06F30/20G06F30/13G01N1/28
Inventor 罗彦斌陈建勋徐子龙王传武袁江鹏邵汉祥
Owner CHANGAN UNIV
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