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Seawall safety evaluation method

A safety evaluation and safety technology, applied in special data processing applications, instruments, electrical digital data processing, etc. first class problem

Inactive Publication Date: 2014-02-26
ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In past studies, evaluation methods such as fuzzy comprehensive evaluation method, analytic hierarchy process, and gray relational analysis method have provided new research tools for establishing the safety evaluation system of embankment engineering. Due to its own limitations, it is difficult for a single evaluation method to fully reflect the safety and health characteristics of seawalls. For example, the traditional fuzzy comprehensive evaluation method is not easy to distinguish the difference between two adjacent categories; Broad, there is a large subjective error in the weight of the direct evaluation; the gray relational analysis method has high requirements for the data volume and accuracy of the research sample

Method used

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Experimental program
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Effect test

Embodiment 1

[0049] Embodiment 1: a kind of seawall safety evaluation method, such as figure 1 shown

[0050] Step 1: Establish the safety evaluation index system and evaluation level of seawall engineering

[0051] Establish a three-level index system for safety evaluation of seawall engineering from the perspectives of system, application, and operability, and refer to factors such as seawall occurrence environment characteristics and time scales, and combine index analogy, expert experience, and norms to establish seawall engineering Safety comprehensive evaluation level standard. For the sake of simplicity and universality, the safety evaluation system of seawall engineering is divided into four grades of Ⅰ, Ⅱ, Ⅲ, and Ⅳ, and "safe", "relatively safe", "slightly dangerous" and "dangerous" are respectively used to describe.

[0052] Step 2: Determine the composite fuzzy matter-element of the seawall evaluation system

[0053] The safety evaluation grade of the seawall project is reco...

Embodiment 2

[0088] Embodiment 2: application example

[0089] The standard seawall of the Hangzhou Xiasha section of the Qiantang River is located on the north bank of the lower reaches of the Qiantang River. It is the main pond along the first line of the Linjiang River. It protects the main urban area, Yuhang District and Xiasha Economic and Technological Development Zone of Hangzhou together with the seawalls of other provincial pipe sections, with a protection area of ​​1800km 2 , with a population of 2.18 million, this section of embankment permanently covers an area of ​​1409.2 mu, which is an important lifeline project to resist the flood tide of Qiantang River. The seawall project was completed in July 2000 and has been in operation for more than 10 years. According to the "Zhejiang Province Seawall Project Safety Appraisal Management Measures (Trial)" promulgated in 2009, "the first seawall appraisal should be carried out within 10 years after completion. Considering the With the...

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Abstract

The invention relates to a seawall safety evaluation method and belongs to the technical field of seawall safety evaluation. The method comprises the following steps that a seawall engineering safety evaluation index system and an evaluation order are established; a composite fuzzy matter element of the seawall evaluation system is determined; a membership degree variable fuzzy set-matter element model is established; an entropy combination weight method is used for determining seawall engineering safety evaluation index weight, namely an entropy combination weight value is determined; a hamming close degree is used for determining a close degree composite fuzzy matter element of seawall safety evaluation; comprehensive evaluation is carried out on seawall engineering safety. The seawall safety evaluation method is explored from a new aspect, case study is carried out, and the feasibility is determined.

Description

technical field [0001] The invention belongs to the technical field of seawall safety evaluation, and in particular relates to a seawall safety evaluation method. Background technique [0002] Seawall engineering is a specific name for embankments built in coastal areas to resist floods and tides. The safety evaluation of seawall engineering refers to the combination of all factors related to the safety of seawall engineering according to a suitable model based on the safety investigation of seawall, combined with the influence of non-engineering measures, and then evaluates the comprehensive safety of the project . The comprehensive safety evaluation of seawall project is of great significance to objectively evaluate the status of seawall, strengthen the sustainable maintenance of the project, and provide quantitative basis for project management and decision-making. The research on the safety evaluation of seawall engineering at home and abroad is still in its infancy, a...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 秦鹏秦植海王海波周建芬王英华
Owner ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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