悬跨海底管道的声学检测方法和成因机制分析  

Analysis of Acoustic Detection Methods and Formation Mechanism on Subsea Pipeline Free-spans

作　　者：王皓 黄潘阳[2] 来向华[2] 张恒[2] WANG Hao;HUANG Pan-yang;LAI Xiang-hua;ZHANG Heng(Shanghai Petroleum and Natural Gas Co.Ltd,Shanghai 200041,China;Laboratory of Engineering Oceanography,Second Institute of Oceanography,SOA,Hangzhou 310012,China)

机构地区：[1]上海石油天然气有限公司,上海200041 [2]国家海洋局第二海洋研究所工程海洋学重点实验室,杭州310012

出　　处：《船海工程》2018年第A01期92-96,100,共6页Ship & Ocean Engineering

基　　金：上海市科学科学技术委员会科研计划项目(14DZ1204600);国家自然科学基金项目(51179169);国家海洋局第二海洋研究所科研业务费专项(JG1307)

摘　　要：为了提高检测过程中对悬空海底管道的辨识能力,基于调查数据,系统分析总结了海底管道悬跨的多种声学检测方法,如侧扫声呐、单波束测深系统、浅地层剖面系统及多波束测深系统等,比较了各种检测方法的应用条件,分析了造成海底管道悬跨的多种成因机制,并通过数值计算演示了管道周围局部冲刷中的孔道冲刷的动力过程。In order to improve the detection ability of suspended pipeline,based on survey data,the varies kinds of acoustic detection methods and their applicable conditions were researched,such as side-scan sonar,single beam echo sounder,sub-bottom profiler and multi-beam echo sounder,etc.The genetic mechanism of subsea pipeline free-spans was analyzed;the dynamic process of channel scour in local scour around pipeline was demonstrated by numerical calculation.

关 键 词：海底管道悬跨 声学检测 成因机制 水动力环境条件 铺设施工 

分 类 号：P754[天文地球—海洋科学] TE832[石油与天然气工程—油气储运工程]