京杭运河船闸扩容工程
刘老涧三线船闸总体设计及上游引航道设计
摘 要
本设计进行了京杭运河扩容工程刘老涧三线船闸的总体设计，并进行了上游引航道工程的结构方案设计和施工图设计。
刘老涧第三线船闸的设计通过能力在预测水平年2025年达到3300万吨。苏北运河徐扬段为二级航道，船闸的设计最大船型为2000吨级，因此船闸级别为二级。设计船型以1顶推船+2×2000t驳船为主，经计算新建的三线船闸闸室采用规范推荐的有效尺度23m×260m×5m（宽×长×槛上水深）。从多方面比较了新建船闸与原有两线船闸的几种闸位关系，最终选用“南方案”。在确定了船闸各部分高程之后，进行了船闸主体结构的方案拟定，着重进行了引航道的平面布置，并对主导航墙的结构形式进行了现浇混凝土重力式与扶壁式的比选，最终采用了扶壁式。扶壁式结构的稳定性验算和构件,严格按照现行规范进行。由于沉井结构设计和施工的规范相对缺乏，故沉井设计部分主要依照设计院的已有的设计文件和相关文献进行。施工图设计进行了辅助导航墙的沉井的设计和主导航墙的设计，作出了详细的配筋图。
Abstract
This paper deals with the overall design of LiuLaojian Third Shiplock of The Great Canal Boosting Engineer along with the scheme design and the shop drawing design.
LiuLaojian Third Shiplock is due to accommodate 33 million tons of cargo flow in the predicting level year 2025. The North Jiangsu canal is a level-2 channel from Xuzhou to Yangzhou ,and the heaviest vessel weighs 2000 tons, so the shiplock have a level of Ⅱ.The designed typical fleet consists of one ship plus two 1000-ton lighters. Calculation shows the adequate useful chamber dimension is 23m×260m×5m(width multiply length multiply water depth)，which is recommended by the criterion. By comprehensive comparing about the position of the new-built shiplock to the existing shiplock, the South Scheme is selected. Afterwards, the height of every parts of the shiplock is decide and the scheme of the major structure is drafted, especially the layout of navigation channel is studied out. Then a structure type selection is performed between the concrete gavity structure and buttress, the latter selected finally. The stability calculation of the strictly accords with the criterion while the design of sunk is mainly relying on the existing example and reference books rather than the codes for a lack of criterion. The shop drawing design focuses on the major navigation wall and the sunk well in the auxiliary navigation wall, the detailed steel fixing is drafted.
