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非通航孔桥墩的防撞保护受到各界关注。本研究以设置防船撞试验段的形式,研究非通航孔桥的防撞方案,为后期的研究和工程推广提供技术支撑。本研究依据桥区环境特点及非通航孔桥防撞要求,经研究综合考虑,采用独立防撞墩+拦截索链+锚泊浮体+锚碇沉块组成的拦截体系来保护大桥。本研究对整个拦截体系进行了数模计算和物模试验,确定关键设计载荷参数,分析体系的环境适应性,并研究拦截体系在船舶撞击下的有效性。
Anti-collision protection of non-navigable pier has attracted the attention of all circles. In this study, we set up the test section of the anti-collision test to study the anti-collision solutions of non-navigable bridges and provide technical support for the later research and project promotion. Based on the bridge environment characteristics and the requirements of anti-collision of non-navigable bridges, the research considers the comprehensive protection of the bridge by means of an intercepting system composed of an independent collision pier + interception cable + anchor buoy + anchor block. In this study, the entire interception system has been subjected to numerical simulation and model test. The key design load parameters were determined, the environmental adaptability of the system was analyzed, and the effectiveness of the interception system under impact of ships was studied.