弯曲航道通航宽度和水流条件确定方法探讨

Preliminary Study on the Calculation of Navigation Width and the Determination of Flow Condition of Curved Waterway

为消除因地形和水流条件等因素限制了弯曲航道尺度,导致船舶航行不安全的隐患,通过调研,整理分析了全国主要通航河流各等级航道弯曲航道情况,对弯曲航道影响船舶航行的因素进行了总结分析。采用弯曲航道概化模型试验和弯曲航道遥控船模试验,结合已有研究成果和有关标准及规范,研究不同弯曲半径的弯曲段航道宽度,提出了适用于不同航道等级内河弯曲航道通航尺度的确定方法;初步探讨了弯曲航道水流条件,提出了弯曲航道通航水流条件技术要求的确定方法。为内河水运工程建设、航道治理、维护标准的确定提供技术支持和科学依据。

The topography and flow condition and other factors limit the width of curved waterway, and pose hidden dangers to the safe navigation of ships. To solve these problems, we summarized the navigation condition of various levels of curved waterway of main navigable rivers in China, and analyzed the factors influencing the navigation. By employing generalized model test and remote control ship model test, and in association with the existing research results and relevant standards and specifications, we researched the navigation width of curved waterway with differ- ent bending radius, and put forward the method of determining the navigation width suitable for different inland wa- terway levels. Furthermore, we discussed the flow condition of curved waterway , and present the method of deter- mining the technical requirements for the navigation flow condition. This research offers technical support and sci- entific basis for the navigation project construction in inland river, the channel regulation, and the determination of maintenance standards.