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Fuzzy comprehensive judgment based subway safety evaluation method

A technology of fuzzy comprehensive evaluation and safety evaluation, applied in the fields of instruments, data processing applications, resources, etc., can solve problems such as deviation of calculation results and failure to build membership functions.

Inactive Publication Date: 2018-01-19
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology

In summary, although the risk assessment method has been widely used in subway construction, and although many scholars have divided the risk factors of subway construction into multiple levels, the current research has not analyzed the quantitative indicators in the risk assessment factors of subway construction. The membership function is constructed separately with the qualitative index, so that the calculation result has a large deviation from the actual situation

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  • Fuzzy comprehensive judgment based subway safety evaluation method
  • Fuzzy comprehensive judgment based subway safety evaluation method
  • Fuzzy comprehensive judgment based subway safety evaluation method

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the on-site measured data of a certain subway line and specific implementation methods.

[0031] In this embodiment, the subway construction risk assessment method based on the fuzzy comprehensive evaluation method includes the following steps:

[0032] Step 1. Determine the risk evaluation factors of subway construction, and construct a two-level fuzzy comprehensive evaluation model;

[0033] In the embodiment of the present invention, according to the analysis of the relevant risk evaluation factors based on the project overview, and comprehensively considering the actual situation of the subway construction, the risk evaluation factors of the subway construction are divided into two levels, as shown in the attached figure 1 shown.

[0034] In this embodiment, according to the attached figure 1 A two-level fuzzy comprehensive evaluation model is established, and the two-level factor sets are: ...

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Abstract

The invention relates to a fuzzy comprehensive judgment based subway safety evaluation method with an aim to solve problems about safety evaluation of subway construction. The method includes: establishing a risk index system fully reflecting construction environment characteristics by analyzing and identifying typical risk sources of certain subway construction and determining weights of layers of indicators by adopting a level analysis method; dividing subway safety levels into a I-level safety status, a II-level secondary safety status, a III-level yellow alert, a IV-level orange alert anda V-level red alert; establishing a subway construction risk evaluation model by adopting a second-level fuzzy comprehensive evaluation method and evaluating and grading construction risks of Shenyangsubway line 9. The results indicate that the evaluation method is feasible, the evaluation results are instructive to the construction safety of Shenyang subway, and the method is applicable to riskevaluation of subway construction.

Description

technical field [0001] The invention belongs to the field of disaster prevention and mitigation engineering of geotechnical engineering, and in particular relates to a subway safety evaluation method based on fuzzy comprehensive evaluation. Background technique [0002] Subway construction is a high-risk construction project. Because it passes through the hinterland of the city, the surrounding environment is complex, and there are many uncertain factors such as geological conditions, safety accidents occur frequently, causing huge property losses and casualties. Therefore, it is of great significance to evaluate and classify the risk factors of subway shield construction. The risk factors in the subway shield construction process have great randomness and ambiguity, and scientific and reasonable risk assessment methods are needed to accurately describe them. Therefore, more and more subway shield constructions have carried out engineering safety risk assessment work; Acade...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/08
Inventor 张向东董世超刘家顺
Owner LIAONING TECHNICAL UNIVERSITY
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