基于失效概率分析的某过江管道备用通道设置必要性探究  

Research on the Necessity of Setting up a Crossing River Pipeline Standby Channel Based on Failure Probability Analysis

作　　者：詹胜文[1] 任文明[1] 张金源[1] ZHAN Sheng-wen;REN Wen-ming;ZHANG Jin-yuan(China Petroleum Pipeline Engineering Corporation,Langfang 065000,China)

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000

出　　处：《工程建设与设计》2018年第23期93-96,共4页Construction & Design for Engineering

摘　　要：穿越区段是长输管道工程中风险较大、难以维修和修复的区段,往往是长输管道工程关注的重点部位。在保证穿越管道可靠性设计方面,中国和欧美设计理念是一致的,即通过降低穿越设计系数、增加壁厚、加强防腐、设置阀室、加强焊缝检测、提高试压标准等手段保证管道的本质安全。俄罗斯的设计理念则是在采取相关加强措施的同时,还要考虑设置管道备用通道,这与俄罗斯地大物博的国情是分不开的。论文以某盾构隧道穿越为例,运用极限状态方程,分析了其失效概率。该分析方法可以作为其他大型穿越工程失效概率分析的参考。Crossing section is very risky and difficult to repair in the long distance pipeline project, it is often the focus part of long distance pipeline project. To ensure the reliability design of crossing pipelines, the design idea of China and Europe and America is the same, that is to ensure the essential safety of pipeline by reducing the crossing design coefficient, increasing the wall thickness, strengthening the anticorrosion, setting up the valve chamber, strengthening the weld detection and improving the test pressure standard. The Russian design idea is to consider setting up a pipe standby channel while taking relevant measures, which is inseparable with the national conditions of Russia＇s vast territory and abundant resources. Taking a shield tunnel crossing as an example, we use the limit state equation to analyze its failure probability. The analysis method can b e used as a reference for the failure probability analysis o f other large crossing projects.

关 键 词：可靠性 失效概率 长输管道 备用通道 

分 类 号：U17[交通运输工程]