Accident tree graph digital analysis method and accident tree graph digital analysis tool both applied to coal mine safety evaluation
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A coal mine safety and fault tree technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as heavy workload, complicated derivation process, prone to errors, etc., and achieve accurate results
Inactive Publication Date: 2013-09-11
CHONGQING SONGZAO COAL & ELECTRICITY CO LTD +2
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The disadvantage of this method is that the model is drawn manually, and the underlying event data is entered manually; the formula is manually calculated, and the derivation process is complicated and the workload is heavy; the whole process requires a large amount of human participation, and each link is extremely prone to errors
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Embodiment 1
[0055] Example 1 see figure 2 , a fault tree graphic digital analysis method applied to coal mine safety assessment, comprising the following steps,
[0056] 1. Construct the fault tree graph:
[0057] 1.1 Establish a graphic element library: establish a graphic element symbol library including event symbols, logical operation symbols, and connecting lines between event symbols and logical operation symbols, and define the starting point and end point of the connecting line as a parent-child node relationship;
[0058] 1.2 Constructing the fault tree graph: Construct the fault tree graph with the primitive symbols and the connecting lines, and assign names to the primitive symbols constituting the top event and intermediate events, respectively assign names to the primitive symbols that constitute the basic event A hidden primitive is bound by means of a hidden name;
[0059] 1.3 Digitization of fault tree graphics: including assigning non-duplicate codes to the symbol sy...
Embodiment 2
[0113] Example 2 A fault tree graphic digital analysis tool applied to coal mine safety assessment, including
[0114] Fault tree graphic construction unit for constructing fault tree graphics; including
[0115] The graphic element library building module is used to create a graphic element symbol library including event symbols, logical operation symbols and connection lines between the event symbols and logical operation symbols, and defines the starting point and end point of the connection line as a parent-child node relationship;
[0116] The fault tree graphic construction module is used to construct the fault tree graph with the graphic element symbols and the connecting lines, and assign names to the graphic element symbols that constitute the top event and the intermediate event, and to configure multiple graphic element symbols that constitute the basic event Respectively bind a hidden primitive in the form of hidden name;
[0117] The fault tree graph digitizati...
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Abstract
The invention discloses an accident tree graph digital analysis method and an accident tree graph digital analysis tool both applied to coal mine safety evaluation. The method includes the following steps: building an accident tree graph, particularly, creating a graph element library, building an accident tree graph and digitalizing the accident tree graph; analyzing and simplifying the accident tree graph, particularly, analyzing the accident tree graph and simplifying the same; building an accident tree parameter calculating model, particularly, building a minimum cut set calculating model, building a minimum radius set calculating model, building a top event occurrence probability calculating model and building a three importance degree coefficient calculating model. The tool includes an accident tree graph building module, an accident tree graph analyzing and simplifying module and an accident tree graph parameter calculating model building module. The accident tree graph digital analysis method and the accident tree graph digital analysis tool both applied to coal mine safety evaluation have the advantages that by the method, defects of low efficiency and high error rate caused by manual drawing of the accident tree graph, manual building of a structure function and manual building of calculating models are overcome, so that calculating results are more accurate and convenience is brought to taking more effective measures; the tool provides a guarantee for implementation of the method.
Description
technical field [0001] The invention relates to underground safety information management technology, in particular to a digital analysis method and analysis tool for fault tree graphs applied to coal mine safety assessment. Background technique [0002] The fault tree analysis method starts from the specific accident or failure (top event) that needs to be analyzed, and analyzes its causes layer by layer until the basic cause of the accident (bottom event) is found. Applying the theory of fault tree analysis to the analysis of coal mine accidents can facilitate the identification and evaluation of the dangers of coal mine safety production. It can not only analyze the direct causes of accidents, but also deeply reveal the potential causes of accidents. At present, some coal mining enterprises adopt the fault tree analysis method, which requires manual drawing of the fault tree model, and then formula derivation to calculate the event probability layer by layer. The disadva...
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