| In order to realize the sustainable utilization of land resources, improve the land utilization rate, increase the area of cultivated land, China officially launched the national investment land consolidation project in 2001. At present, with the development of DEM application, ArcGIS technology and the development of national investment land consolidation project, the introduction of DEM and ArcGIS to land consolidation project has become an inevitable trend. Therefore, in this context, this paper takes Bei’an land consolidation project as an example, the ARCGIS software as the platform, through the construction of the digital 3D model of the project area, the DEM space analysis, the ARCGIS software to generate the project area digital three-dimensional model; combined with digital three-dimensional model display function and DEM space analysis, the research and Discussion on how to better DEM and Arc GIS application in land consolidation, and put forward some feasible and easy to operate. The research conclusions are as follows:The research shows that the whole slope of Bei’an is 0-2, and the area is 1207.49hm2, which accounts for 96.17% of the whole area. By using the slope of slope and land use map, 1 types of dry land and 1 paddy fields as the research area are mainly distributed in the range of I grade(0-2). The area is 29.39% and 60.05%.By setting up the corresponding elevation plan, the excavation volume is 104503.33 meters, and the excavation volume is 23.20 cubic meters; the height of the earth is 96596.63 cubic meters. The results obtained are 24.30 and 5.7% respectively. The relative error is and 9.5% respectively.Research at the same time, combined with the DEM model and the river system and road network data, design road construction scheme and drainage scheme. The road scheme 6.0 meters roadbed width and 0.3 meters off the ground, subgrade sandstone, sandstone thickness requirements 20 cm and 4.0 meters wide; drainage scheme is 1.3 km dredging waste, including: Dou Gou(6 meters wide, 0.9 km long; Dou Gou(wide and 3 meters wide, 1.5 meters deep, length 0.4 kilometers, dredging the thickness of 1 m, a total of dredging the total earth 1700 cubic meters.In the end, the design scheme and the model of the research area are integrated, and the design of the corresponding tool is realized. |
