航道设标弯曲半径快速估算方法  

Fast estimation method for bending radius of channel marking

作　　者：朱彬华 刘作飞 杜新文 徐小雯 ZHU Binhua;LIU Zuofei;DU Xinwen;XU Xiaowen(Chongqing Waterway Bureau of the Yangtze River,Chongqing 401120,China;Wuhan Water Emergency Rescue Base on the Yangtze River,Wuhan 430014,China)

机构地区：[1]长江重庆航道局,重庆401120 [2]长江武汉水上应急救助基地,湖北武汉430014

出　　处：《水运工程》2024年第9期113-116,共4页Port & Waterway Engineering

摘　　要：针对航标优化调整后复核航道弯曲半径耗时长的问题,基于航道养护现场的特点,提出航道设标弯曲半径快速估算方法。该方法根据相邻航标作用距离连线、外接圆弧、航宽,三角函数方程,并联合坐标系理论而得到。通过正、余弦定理推导,将航标连线外接圆半径解出。在基于坐标系的基础上利用三角形解析,将航标连线有遮挡的外接圆半径解算。在3处典型弯曲河段进行设标,验证航道弯曲半径快速估算的正确性、及时性。研究结果可为现场快速估算弯曲半径,以及准确、及时核查航道弯曲半径提供参考。In view of long time-consuming problem of rechecking the bending radius of the channel after optimizting and adjusting the navigation mark,based on the characteristics of the channel maintenance site,a quick estimation method for the bending radius of the channel marking is proposed.The method is obtained based on the connecting line of the adjacent navigation mark action distance,the circumscribed arc,the navigation width,the trigonometric function equation,and the coordinate system theory.Through the derivation of the sine and cosine theorems,the radius of the circumscribed circle of the navigation mark connecting line can be solved.Based on the coordinate system,the radius of the circumscribed circle of the navigation mark connecting line with obstruction can be calculated by using the triangular analysis.The verification of the setting mark in three typical curved river sections has verified the correctness and timeliness of the rapid estimation of the channel bending radius.The results can provide reference for how to quickly estimate the bending radius on site,so as to accurately and timely check the bending radius of the channel.

关 键 词：航道尺度 弯曲半径 快速估算 

分 类 号：U612[交通运输工程—船舶及航道工程]