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Test device and method for simulating shield to pass through bad formation hole to grout

A test device and grouting technology, applied in underground chambers, shaft equipment, earth-moving drilling, etc., can solve problems such as unsatisfactory and complex geological conditions of interval tunnel crossing, and achieve the effect of accurate simulation analysis results.

Pending Publication Date: 2019-10-08
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
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Problems solved by technology

[0004] Due to the far-reaching impact and high economic value, the industry has conducted research on the uneven settlement and long-term settlement control of shield tunnels during operation from the aspects of theoretical analysis and numerical calculation; The interaction with the interval tunnel is difficult to be clearly characterized by conventional test parameters. Therefore, the results of theoretical analysis and numerical calculation in the long-term settlement of shield tunnels are often unsatisfactory

Method used

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  • Test device and method for simulating shield to pass through bad formation hole to grout

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other. Undue Limitation of This Application.

[0031] In the description of the embodiments of this application, if there is no separate statement, the orientations or positional relationships of "up", "down", "left", "right", "front", and "back" are based on the attached figure 1 It should be understood that these orientation terms are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be configured in a specific orientation, and operation and therefore should not be construed as limiting the application.

[0032] Such as Figure 1 to Figure 8 As shown, a test device for simulating the grouting of shield tunneling through unfavorable formations includes a test chamber 1 ...

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Abstract

The invention discloses a test device and method for simulating a shield to pass through a bad formation hole to grout. The test device comprises a test storehouse, a shock excitation system and a measuring system; the test storehouse comprises a storehouse body, a model, a grouting and reinforcing body and fillers; the storehouse body is provided with an opening; the model covers the opening; themodel and the storehouse body jointly limit a storage cavity; the storage cavity is filled with the fillers; the grouting and reinforcing body is used for reinforcing the fillers; the measuring system is configured to detect that the model bears the load from the fillers; and the shock excitation system is configured to apply circulating load to the model. The test device and method for simulating the shield to pass through the bad formation hole to grout have the advantage of accurate analysis result.

Description

technical field [0001] The present application relates to tunnel engineering equipment, in particular to a test device and method for simulating the grouting in a hole of a shield tunneling through an unfavorable formation. Background technique [0002] At present, the use of open cut method for excavation of subway stations and the use of shield tunneling for interval tunneling have become the basic mode of subway construction in large and medium-sized cities in my country, and have been unanimously affirmed and praised by people in the industry. Shield construction has also gradually got rid of the setting for the construction of subway tunnels on soft ground, and the scope of application has been continuously expanded, covering many fields such as roads, railways, intercity, hydraulic engineering, electric power, pipelines, common trenches, and deep underground tunnels. Engineering examples of shield tunneling can be found in all geological conditions. [0003] However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/10E21D11/102
Inventor 裴利华杨均林东邓如勇包容
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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