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通过及时把握相关市政给水管道爆管事件报道,了解我国各地大型爆管事故现状和爆管发生的原因及其规律性。就爆管原因、月份、时间、空间、管材、管径、管龄等的分析,发现本年度内施工、老化、土层变动、气温变动等是爆管事故的主要原因;1、7、8、12月容易发生爆管事故;一日内,上午5-11时容易发生爆管事故;道路交叉口附近较容易发生爆管事故;发生爆管的管材多为铸铁管和水泥管;管径多在DN300-500范围和DN1200左右;发生爆管的铸铁管管龄一般在20-30年之间,而水泥管一般在15年左右。
By timely grasping the reports of municipal water pipe burst events, understand the status quo of large squib accidents around our country and the causes and regularities of squibs. According to the analysis of the causes of burst pipe, month, time, space, pipe material, pipe diameter and pipe age, it was found that the construction, aging, soil layer change and temperature variation were the main causes of pipe burst accident in this year; Burst pipe accident prone in December; within a day, 5-11 am prone to burst pipe accident; near the intersection more prone to burst pipe accident; pipe burst occurred mostly cast iron pipe and cement pipe; pipe diameter in the DN300-500 range and about DN1200; cast pipe burst pipe age usually between 20-30 years, while the cement pipe is generally about 15 years.