随着国内旅游航道建设的不断推进,如何将绿色航道理念深入到旅游专用航道的规划、设计、施工建设及养护全过程,是绿色交通建设重要议题.本文结合全国首条以绿色航道命名的"锦江绿色航道项目"工程实践,提出新的绿色旅游航道建设理念、建设目标,系统性地阐述了绿色旅游航道在全生命周期内,各阶段的关键建设技术与生态环保措施.

为推进绿色基础设施创建、生态廊道构建,推动旅游航道发展,结合全国首条以绿色航道命名的"锦江绿色航道项目"工程实践,提出"生态优先、绿色发展、以人为本"的绿色旅游航道建设理念,"节能低碳、资源节约、生态环保、航景融合、安全畅通、智慧建养"的绿色旅游航道建设目标体系,"生态、旅游、休闲"为特色旅游航道,构建贯穿全生命周期的绿色旅游航道顶层建设理念体系.研究成果可为交通运输部门推动旅游航道绿色发展管理决策提供参考.

汉江雅口航运枢纽为通航河流枢纽,工程施工期应妥善处理船舶通航问题.结合工程分期施工的方案,提出对应的通航方案,施工一期采用疏挖后的束窄河道作为临时航道通航,避免断航带来的不利影响;施工二期采用已建船闸通航,实现临时通航与永久建筑物的结合.针对施工期通航水流条件问题,采用数值模拟计算方法,建立二维水动力数值模型对各流量工况下的水流流态进行计算分析.结果表明,两阶段施工期的通航水流流速均满足相关要求.

Aiming at the calculation method of internal force of high-pile wharf without beam, we analyze the internal force of the high-pile wharf without beam, and study the distribution coefficient of horizontal concentration. Using the ANSYS finite element software for numerical simulation, we obtain the distribution coefficients of the horizontal concentrated force in the high-pile wharf without beam with different span and bay spacing. The results show that the distribution coefficients of the horizontal concentrated force in the bents of high piled wharf without beam are less than the normative values. The minimum deviation between the two is 1. 8％ and the maximum deviation is 39. 6％. The horizontal distribution coefficients are essentially increased as the space between transverse bents increases. The distribution coefficient of horizontal concentrated force decreases when the number of along-longitudinal span or the number of along-transversal span increases.