多厢互联式渡槽运行安全预警监控指标研究  

Research on the Operation Safety Warning and Monitoring Index of the Multi-trough Aqueduct

作　　者：李海枫[1] 康立芸 孙杰涛 LI Hai-feng;KANG Li-yun;SUN Jie-tao(Department of Structure and Materials,China Institute of Water Resources and Hydropower Research,Beijing 100038,China;General Institute of Water Resources and Hydropower Planning and Design,Beijing 100120,China)

机构地区：[1]中国水利水电科学研究院结构材料所,北京100038 [2]水利部水利水电规划设计总院,北京100120

出　　处：《中国农村水利水电》2023年第12期220-226,233,共8页China Rural Water and Hydropower

基　　金：国家重点研发计划项目(2016YFC0401807)。

摘　　要：多厢互联式渡槽是一种新型渡槽结构型式,该结构型式具有断面过水流量大、整体工作性态好、槽身挠度变形小等优点,但槽身对不均匀竖向变形较为敏感。鉴于这种结构型式在我国水利行业尚属首次,如何建立多厢互联式渡槽运行安全预警监控指标是工程运行管理的重要问题。目前,国内学者关于渡槽已提出了若干监测模型,但是这些模型并没有给出明确的监控指标,更没有体现出“分级监控、逐级预警”的现代监控理念。为此在前期研究工作基础上,通过槽身破坏模式分析,提出将支座处不均匀竖向变形作为主要监控指标,槽身内壁处的钢筋计测值作为次要监控指标,研究成果可为多厢互联式渡槽的安全运行提供借鉴和参考。The multi-trough aqueduct is a new type of aqueduct structure,which has the advantages of large cross section water flow,good overall workability and small deflection deformation of the channel body,but the channel body is more sensitive to uneven vertical deforma⁃tion.In view of the fact that this type of structure is still the first in the water conservancy industry in our country,how to establish a multitrough aqueduct operation safety early warning monitoring index is an important problem in project operation management.At present,do⁃mestic scholars have put forward a number of monitoring models about aqueducts,but these models do not give clear monitoring indicators,and do not reflect the modern monitoring concept of“hierarchical monitoring,step-by-step warning”.Therefore,based on the previous re⁃search work,this paper proposes taking the non-uniform vertical deformation at the support as the main monitoring index,and the measured value of the reinforcement at the inner wall of the trough as the secondary monitoring index,and the research results can provide a reference for the safe operation of the multi-trough aqueduct.

关 键 词：多厢互联式渡槽 安全预警 监控指标 破坏模式 

分 类 号：TV672.3[水利工程—水利水电工程]