截流水文泥沙监测中几个关键技术的研究与实践

Research and Application of the Key Techniques in Hydrologic andSediment Monitoring for the Main River Closure at TGP

基于三峡工程大江截流水文泥沙监测除常规水文要素外，要求监测围堰龙口和导流明渠附近水体多维水文要素的时间和空间动态变化，因此应尽可能应用相关科技的最新成果和一切先进经验、成熟的技术方法和设备。本文介绍了其中无人立尺接测水位、ＡＤＣＰ测流、龙口测验、ＧＰＳ和数据传输等几个关键部位、关键技术室内外研究实验及现场率定校正的情况。实践证明，这些技术的研究与应用，为截流水文泥沙监测打下了基础。

During the river closure,apart from those regular hydrologic factors,dynamic variation of the multi-dimensional hydrologic factors in time and space near the closure gaps and open diversion channel were required to be monitored.So,the later research results of related technologies and some advanced experience,mature techniques and equipment in this field should be used as far as possible.The indoors and outdoors experiment and field calibrations relative to several key techniques in the monitoring,which include flow measurement with ADCP,hydrometry at the gaps,GPS application and data transmission,are presented in this paper.It is proven that the researches and applications of these techniques have contributed a lot to the hydrologic and sediment monitoring of the river closure.