Pipeline leakage risk assessment method in comprehensive pipe gallery

Abstract

The invention discloses a pipeline leakage risk assessment method in a comprehensive pipe gallery. The method comprises the following steps: determining a possibility factor of leakage risk occurrenceand an influence factor after the leakage risk occurrence; performing hierarchical division on the risk occurrence possibility and the influence after risk shadow occurrence, and respectively constructing a hierarchical structure 1 of the risk occurrence possibility and a hierarchical structure 2 of the risk influence degree; respectively calculating the comprehensive weight of the possibility factor to the risk possibility L and the comprehensive weight of the influence degree factor to the risk influence degree S by adopting an analytic hierarchy process; respectively calculating a risk possibility L and a risk influence degree S; and performing leakage risk assessment by using the risk possibility and the risk influence degree. The leakage risk mechanism is analyzed, the possibility factor of leakage risk occurrence and the influence degree factor after occurrence are analyzed, basic data needed by the established leakage risk assessment method are easy to obtain, the compatibilitywith an existing pipe gallery safe operation monitoring system is high, and the method is suitable for practical engineering application.

Description

Technical field [0001] The invention relates to the technical field of pipeline risk assessment, in particular to a pipeline leakage risk assessment method in a comprehensive pipeline gallery. Background technique [0002] As an important urban lifeline, the heating pipeline is integrated into the integrated pipe gallery for centralized laying. The transmission medium is mainly steam and hot water, which has the characteristics of high temperature and high pressure. It mainly provides heating medium for industrial production or residential heating. Due to the properties of thermal pipelines, medium characteristics and management and scheduling, there is a risk of leakage in the pipeline operation process, which seriously affects the normal operation of the integrated pipeline gallery and nearby life pipelines. [0003] Comprehensive pipeline corridor refers to the comprehensive corridor of underground urban pipelines, that is, a tunnel space is built underground in the city, which ...

AI Technical Summary

Problems solved by technology

Therefore, the possibility of occurrence of the leakage risk of the two types of pipelines and the impact after occurrence are also different.

In addition, the existing relevant risk assessment methods generally encounter the problem of difficulty in obtaining and quantifying basic data when they are actually applied.

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