Tunnel supporting structure system rigidity design method and system

A technology of support structure and design method, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as strong subjectivity, poor scientificity, and reduced reliability and economy of engineering construction.

Pending Publication Date: 2021-03-16
BEIJING JIAOTONG UNIV
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  • Description
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a design method and system for the rigidity of the tunnel support structure system, which solves the problem that the existing tunnel

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  • Tunnel supporting structure system rigidity design method and system
  • Tunnel supporting structure system rigidity design method and system
  • Tunnel supporting structure system rigidity design method and system

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Embodiment 1

[0124] like figure 1 As shown, the embodiment of the present invention provides a method for designing the stiffness of a tunnel support structure system, and the specific implementation steps are as follows:

[0125] A1, Surrounding rock stability analysis

[0126] Firstly, the structure of surrounding rock and its possible maximum deformation are predicted by theoretical calculation or on-site monitoring data analysis. Then, the standard deformation of surrounding rock is determined according to the stability conditions of the deep surrounding rock structure layer. If the maximum deformation of the surrounding rock exceeds the standard deformation of the surrounding rock, it means that the surrounding rock cannot achieve a balanced state by adjusting its own stress. At this time, the stability of the surrounding rock itself does not meet the requirements, and it needs to be mobilized and assisted by providing support. Rock bearing.

[0127] The standard deformation of sur...

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Abstract

The invention relates to a tunnel supporting structure system rigidity design method and system, and the method comprises the steps of dividing surrounding rock deformation into four stages accordingto the relation between a deformation position and a tunnel excavation direction and the relation between the deformation position and a tunnel face, and then respectively calculating the surroundingrock standard deformation quantities of the four stages; preliminarily designing the support structure system rigidity value of each stage according to the surrounding rock standard deformation quantity of the four stages, and finally adjusting the rigidity value of the support structure. The quantitative design of the tunnel supporting structure system is realized by establishing the tunnel mechanical model, formulating the surrounding rock deformation quantitative control standard and establishing the quantitative relationship between the tunnel surrounding rock deformation and the supporting rigidity, and the optimal distribution of the supporting system rigidity is further performed to obtain the most economical rigidity design scheme, so that the supporting design is more scientific and reasonable.

Description

technical field [0001] The invention relates to the field of tunnel engineering, in particular to a method and system for designing the stiffness of a tunnel support structure system. Background technique [0002] The over-reliance of tunnel engineering construction on engineering experience, on the one hand, reduces the reliability and economy of engineering construction, and also seriously restricts the scientific progress of tunnel and underground engineering, which makes the informatization and intelligent construction of tunnel engineering difficult. The current tunnel design concept overemphasizes the differences between the geological environment and engineering conditions, and lacks a systematic analysis of the common problems that reflect the essential characteristics of tunnel engineering. On the one hand, the current theoretical research pays too much attention to the quality and mechanical properties of the rock mass, while ignoring the most essential engineering...

Claims

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Application Information

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IPC IPC(8): G06F30/13G06F30/23G06F119/14
CPCG06F30/13G06F30/23G06F2119/14
Inventor 张顶立孙振宇方黄城陈立平
Owner BEIJING JIAOTONG UNIV
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