砂金地区应用影象平面图测绘线划地形图的新方法

A NEW METHOD OF SURVEYING AND MAPPING LINE TOPOGRAPHIC MAPS USING PHOTO PLANS IN PLACER GOLD AREA

砂金地区一般分布在地形平坦、呈带状的江河流域。地质勘探和储量计算对地形图的内容、高程精度要求高,并需快速成图。采用影象平面图测绘线划地形图,正是适应了这些特点。本文简要地介绍了成图原理、作业过程和技术要求,并试图从理论精度和在江西德兴县浮溪口的试验情况,来探讨这种成图方法的可行性。

A placer gold area is usually distributed in the flowing regions of plain terrain, belt-like rivers. Geological prospecting and storing calculations require good quality of topographic maps and altitude precision, and fast diagram-forming is needed, surveying and mapping line topographic maps using image plans adapts to these characteristics. This paper briefly introduces the diagram-forming principles, operation procedure and technology requirements. The availability of this diagram-forming method is investigated in terms of theory accuracy and experimental results in Fuxikou, Dexin County, Jiangxi.