Natural gas pipeline geological hazard risk investigation and evaluation method
Aiming at the uniqueness of pipeline as the main body in the investigation and evaluation of pipeline geohazard risk,this paper firstly clarifies the types of pipeline geohazard and the principle of pipeline geohazard investigation theoretically,and on the basis of which,it explores and perfects a set of complete methodological system for the investigation and evaluation of geohazard considering pipeline body.Secondly,this paper describes the geomorphology,hydrometeorology and pipeline network in the study area,which lays the foundation for the focus of investigation and evaluation,and then applies the perfected methodology to the investigation and evaluation of pipeline geohazards in the study area,and explores the evaluation of the investigation results by using the qualitative,semi-quantitative and quantitative evaluation methods based on the informativeness model,and finally selects the basic typical geohazards hidden spots for analysis,and gives suggestions for disaster prevention and mitigation in light of the actual situation.Finally,the basic typical geologic hazard sites are selected and analyzed,and disaster prevention and mitigation suggestions are given in the light of the actual situation.
ConduitGeological disasterInvestigation and evaluationHidden troubleDisaster prevention and mitigation
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