南水北调中线京石段工程渠道倒虹吸安全监测成果分析

Analysis for Safety Monitoring on the Inverted Siphon Project in the Beijing-Shijiazhuang Section of the South-to-North Water Transfer Project

南水北调中线京石段工程大型河渠交叉建筑物中渠道倒虹吸设计布置了多个安全监测项目。施工期和试通水期间的安全监测成果显示，各建筑物运行状态基本正常。后续运行过程中，需对管身箱涵混凝土应力、管节连接缝变形和抗倾覆等方面加强关注，以防出现影响工程安全运行的事故。同时总结分析京石段安全监测工作，提出建议，以期为南水北调后续工作开展提供参考。

Some safety monitoring projects were designed in the inverted siphon of the Beijing-Shijiazhuang Section of the Mid-route of South-to- North Water Transfer Project. The safety monitoring results in the construction and water delivery trial operation period show that the running status of each building is normal. In the later process of operation, in order to avoid the engineering accident, some aspects including concrete stress, the joint deformation and resistance to capsizing of box culvert should be strengthened.