越江隧道工程锚击贯入深度分析  

Penetrating Depth Analysis of Anchor Impact for a River-Crossing Tunnel Project

作　　者：张可成[1] 葛珅玮 ZHANG Kecheng;GE Shenwei(State Key Laboratory of Navigation and Safety Technology,Shanghai Ship and Shipping Research Institute Co.,Ltd.,Shanghai 200315,China;Jiangsu Shipping College,Nantong 226100,China)

机构地区：[1]上海船舶运输科学研究所有限公司航运技术与安全国家重点实验室,上海200315 [2]江苏航运职业技术学院,江苏南通226100

出　　处：《上海船舶运输科学研究所学报》2022年第6期11-17,共7页Journal of Shanghai Ship and Shipping Research Institute

摘　　要：根据某越江隧道工程所在江段3 a的船舶流量统计资料分析其落锚风险,数据表明此处存在落锚风险,需进行落锚贯入深度计算,以提升隧道工程的安全性。选取该江段各航道典型船舶,分别采用经验图谱方法、理论Yong公式方法、参考规范方法和有限元方法进行贯入量计算,并将所得结果与现有试验测试值相对比。结果表明:理论Yong公式方法和参考规范方法的误差较大;经验图谱方法相对精确,计算相对方便,在设计初期可参考使用;有限元仿真方法的计算精度最好,误差小于10%,安全裕度较高,可供江底隧道锚击贯入深度计算参考。According to the statistical data of vessel traffic in the concerned rive region from 2014 to 2016,the anchor dropping risk is analyzed.The analysis shows that risk of anchor impact exists and the penetrating depth of an anchor needs to be calculated.The typical ships in every channel are determined,and the experience map method,the theoretical formula of Yong method,reference standard method and finite element method are used to calculate the penetrating depth respectively.Compared with the existing experimental test data,it is found that the result from theoretical Yong formula deviates noticeably from the reference specification.The results of empirical map method are quite accurate and the calculation is relatively convenient,so this method is a good option for early design stage.The finite element simulation method has the best accuracy,the error is less than 10%,and the calculation value is larger than that from experiment,at the safe side.It is a good choice for engineering calculation.

关 键 词：水底隧道 锚击 贯入深度 有限元 

分 类 号：U663.7[交通运输工程—船舶及航道工程]