大管径钢管浆体输送磨损特性与生命周期分析  

Analysis of Wear Characteristics and Life Cycle of Large Diameter Steel Pipe in Slurry Transportation

作　　者：袁超哲 杨增海 施宝林 骆佳成 朱平 Yuan Chaozhe;Yang Zenghai;Shi Baolin;Luo Jiacheng;Zhu Ping(National Engineering Research Center of Dredging Technology and Equipment,Shanghai 200082,China;CHEC Dredging Co.,Ltd.,Shanghai 200136,China)

机构地区：[1]中交疏浚技术装备国家工程研究中心有限公司,上海200082 [2]中港疏浚有限公司,上海200136

出　　处：《港工技术》2022年第6期63-67,共5页Port Engineering Technology

摘　　要：本研究针对粗砂、钙化物和细砂等不同吹填介质和典型管线铺设工况,开展了钢质排泥管(Q235-DN850)管壁磨损特性的现场测试与生命周期分析。研究表明,输送土质对浆体输送管道的磨损速度有明显的影响,输送介质越粗磨损速率越大;不同管线铺设形式条件下,上坡管段的磨损速率最大、顺直管段次之、下坡管段的较小。基于此,给出了不同土质吹填工况条件下DN850-Q235钢质管的最大磨损点位和最大磨损速率,给出了管道剩余生命周期的预测方法,形成了不同土质条件下排泥管全生命周期管理流程。Field testing and life cycle analysis were carried out on the wear characteristics of steel pipeline(Q235-DN850)based on different dredger-fill media such as coarse sand,calcium and fine sand as well as typical pipeline laying conditions.The research result shows that the quality of transported soil has a significant impact on the wear rate of pipe wall,and the coarser medium,the greater the wear rate.the wear rate of uphill pipe is the largest,followed by the straight pipe,and downhill pipe is smallest under the condition of different pipeline laying forms.Thus the maximum wear point and wear rate of DN850-Q235 steel pipe are proposed under different dredger-fill conditions,complete with a prediction method for the remaining life cycle of steel pipe,which leads to a managing process of the whole life cycle of slurry pipelines under different soil conditions.

关 键 词：疏浚吹填 磨损 钢质管 剩余生命周期 

分 类 号：U616.2[交通运输工程—船舶及航道工程]