浅剖仪在海底管线保护中的应用  

Application of sub-bottom profiler in submarine pipeline protection

作　　者：赵海涛 李超超 岳文飞[3,2] 王天祥 ZHAO Hai-tao;LI Chao-chao;YUE Wen-fei;WANG Tian-xiang(CCCC(Tianjin)Eco-Environmental Protection Design&Research Institute Co.,Ltd.,Tianjin 300461,China;CCCC TDC Southern Communications Construction Co.,Ltd.,Shenzhen 518101,China;CCCC Tianjin Dredging Co.,Ltd.,Tianjin 300461,China)

机构地区：[1]中交(天津)生态环保设计研究院有限公司,天津300461 [2]中交天津航道局有限公司,天津300461 [3]中交天航南方交通建设有限公司,广东深圳518101

出　　处：《水运工程》2018年第A01期1-6,共6页Port & Waterway Engineering

摘　　要：浅地层剖面探测仪由于操作方便、探测精度高和经济性突出等优点,在水下管线的精确探测中具有明显的优势。结合深圳铜鼓航道疏浚工程的实际情况,利用浅剖仪对航道下的深埋管线进行精确探测,探讨浅剖仪的应用范围以及应用关键技术。得出如下结论:海底管线附近原有土层与抛石间、抛石与管线间的波阻抗差异均很大,可获得较清晰的探测图像信息;采用船舶中部侧方拖拽以及缩短拖缆的方式,可避免拖鱼左右大幅摆动,提高平面探测精度;保持水下托鱼姿态的平稳,同时利用滤波法对船舶噪音和水流、波浪等产生的无效波进行处理,可为制定海底管线保护施工方案提供借鉴。Due to the advantages of easy operation,high detection accuracy and economical advantages,the sub-bottom profiler has obvious advantages in the accurate detection of underwater pipelines.Based on the actual situation of the dredging project of the Shenzhen Tonggu channel,this paper uses the sub-bottom profiler to accurately detect the deep buried pipeline under the channel,and further explores the application range and application key technology of the sub-bottom profiler.The main conclusions obtained are as follows:the differences in wave impedance between the original soil layer and the riprap,the riprap and the pipeline near the submarine pipeline are large,and the clear detection image information can be obtained.The method of dragging the side of the middle of the ship and shortening the streamer is adopted to avoid the large swing of the towed fish and improve the plane detection accuracy.Keeping the attitude of the underwater fish catching stable,and using the filtering method to deal with the invalid waves generated by the ship noise and water flow,waves,etc.,this paper provides a basis for the future development of the submarine pipeline protection construction plan.

关 键 词：浅剖仪 海底管线 航道疏浚 

分 类 号：U612.2[交通运输工程—船舶及航道工程]