GPS在水下地形测量中的应用研究

基于现有的测量模式中所存在的一些问题,通过在堤防隐蔽工程测量中的实践,对水下测量技术进行了一些探讨和研究,得出了以下几点结论:测量仪器和手段的选择是水下地形测量中的一项重要工作,因此在选择时既要考虑精度,又要兼顾其他各方面;GPS的RTK工作方式用于水下地形测量,可使岸上控制点的布设与水上测量同步进行,并使水位观测和水下地形点高程的测量变得可靠、简便易行。

Application of GPS to Underwater Topographic Survey

According to the some problem existed in current diagraph mode, by fulfillment of concealment engineering survey for an important dike in downstream in Yangtze River, underwater measure technique is studied and conclusion has been made: it is a key job to choose a survey instrument and survey methods, so accuracy as well as other sides should be condidered when choosing the type of measure instrument and survey means. The GPS-RTK method used for the underwater topography diagraph, can make the control point put with underwater topographic measure at the same time, It make water level observation become easy.