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油气长输管道地质灾害监测标准分析
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Abstract:
为梳理现有油气长输管道地质灾害监测标准存在问题，给出标准使用及标准整合编制建议，收集整理了国内常用的多项地灾监测标准，通过对比分析地灾风险等级划分、监测等级与地灾风险等级对应、各监测技术具体应用条件及方式和本体应力应变监测报警阈值等技术点，提出建议：统一地质灾害风险等级的划分方法及监测等级与地灾风险等级的对应情况，有效指导标准使用者对风险的判断及监测等级的选择，同时针对不同地灾类型的多种监测技术手段，明确在何种条件下应用及具体实施方式，以及应综合考虑管材、管径、壁厚、焊缝、环境、失效模式等各种因素确定预警阈值，评估管道的完整性。
In order to find out the existing problems of geological hazard monitoring standards for long- distance oil and gas pipelines, and to propose suggestions for standard usage and standard integration, several commonly used monitoring standards for geological hazards in China are collected and sorted out. Through technical points comparative analysis, the risk classification of geological hazards, the correspondence between monitoring level and disaster risk level, the specific application conditions and modes of monitoring technologies, and the alarm threshold of stress and strain monitoring are analyzed. Recommendations are: Unify the method of dividing the risk grade of geological hazards and the corresponding situation between the monitoring grade and the risk grade of geological hazards, effectively guide the standard users to judge the risk and choose the monitoring grade. At the same time, according to different types of local hazards, it is clear under what conditions and specific implementation methods, and it is necessary to consider the pipe material, pipe diameter, wall thickness, welding seam and environment comprehensively. The early warning threshold is determined by various factors such as failure mode and so on, and the integrity of pipeline is evaluated.
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