山区河流航道整治原型观测方法及应用

Prototype observation methods and applications for channel improvement in mountainous rivers

针对山区河流航道整治工程的原型观测内容和方法进行深入分析,提出一套山区河流航道整治原型观测方法。以岷江(龙溪口枢纽—宜宾合江门)航道整治工程一期工程施工图设计为案例,阐述控制测量、地形测量和水文测验等技术难题和关键要点。对枯、中、洪3个流量级别原型观测的测量方法和效率进行讨论,合理安排测次工期,解决了水文测验各子项需在同一流量级别进行测量的问题。研究成果对山区河流航道整治的原型观测具有参考意义。

The contents and methods of prototype observation for channel improvement projects in mountainous rivers are deeply analyzed,and a set of prototype observation methods for channel improvement in mountainous rivers is proposed.Taking Minjiang River(Longxikou Junction to Yibin Hejiangmen)Waterway Improvement Project Phase I construction drawing design as a case study,the technical difficulties and key points of control survey,topographic survey and hydrographic survey are expounded.The measurement method and efficiency of prototype observation at three flow levels,namely,dry,medium and flood,are discussed,and the working period of measurement is reasonably arranged,which solves the problem that each item of hydrographic survey needs to be measured at the same flow level.The research results have reference significance for the prototype observation of channel improvement in mountainous rivers.