Ứng dụng công nghệ GPS thành lập lưới khống chế hạng IV phục vụ thành lập bản đồ hiện trạng dự án đầu tư xây dựng nhà máy nước sạch sông Hồng Vĩnh Phúc

Abstract

Clean water supply plants often have special structures when the width is narrow, contrary to the large length. Thus, to implement the project, the investor needs to build a Status Quo Map of the factory area, using different measurement methods. With the condition of the linear terrain, undirected, divided-topography, the measurement and construction of the map must use GPS technology. In this article, the author applies GPS technology to establish an IV-class grid control serving the construction of the 1:500 scale status quo map of the investment project of clean water supply plant Hong river - Vinh Phuc. The use of GPS technology to establish an IV-class is appropriate, economical, time-saving, and ensures accuracy.