工程截流水文观测技术与实施

Introduction and Implementation of Hydrological Observation Technology for River Closure

及时掌握截流期间和龙口区域水情,研究河流水文要素变化规律,用实时数据指导工程截流施工组织、调整施工进度、优化施工方法。拉哇水电站工程截流期间共布置2个观测站,10个观测点,对戗堤及其附近部位水位、流速、龙口宽度、水面宽度、戗堤高程等水文指标进行跟踪测量、实时分析,为工程截流顺利实施提供了重要的技术支撑。本文介绍了拉哇水电站工程截流过程中水文观测技术及实施成果,供类似工程截流参考。

Knowing in time water condition at closure gap during the closure period and studying the changing laws of hydrological elements,the construction organization of river closure can be guided,construction progress can be adjusted and the construction method can be optimized using the real time data.During the closure period of Lawa Hydropower Station,a total of 2 observation stations and 10 observation points are arranged to carry out tracking and measurement,real-time analysis of the hydrological indicators such as water level,flow speed,width of the closure gap,water surface width,and elevation of the embankment and its adjacent parts,which provides important technical support for smooth implementation of the closure task.This paper introduces the hydrological observation technology and implementation results in the process of closure of Lawa Hydropower Station,which can be used as a reference for closure engineering of similar projects.