Based On MapGIS K9 Platform Of Tianjin In Northern Mountainous Area 3d Geological Modeling Research

Tianjin north mountain range is located in the north plain of Tianjin,covered areais 755 km2 and belongs to Jizhou District.Planning to depend on advantages of Jizhou District,promote the rapid growth of national economy,significantly improve tourism industry,enhance the comprehensive strength,perfecting the urban functionality,make the rural appearance to look brand-new,rich people's lifeand economy,social undertakings comprehensive progress.Currently,Jizhou District,relying on the natural ecological environment,the characteristics of tourism resources and constantly improve the tourism facilities and other advantages,give full play to its unique and profound historical and cultural heritage,the construction of ecological city,stepped into rapid development track.Landscape in this area are mainly composed of mountain,complex geological conditions,bedrock exposed,fracture,geological data scarce,there occurs the hidden danger of geological hazards.Clear regional geological structure,the establishment of Tianjin in the north of the mountains bedrock three-dimensional geological model,north to Tianjin in the depth of the geological characteristics of the study provide a reference basis,and provides Jizhou District geological disaster formation mechanism research foundation,to promote the northern mountainous area economic and cultural construction,which is of great significance to speed up the economic and social development are relatively backward area.This project research is based on project-"the Tianjin urban geological survey results as the backing,through the early successes maps and other related data collection,based on MapGIS K9 platform(3 d visualization of Tianjin city geological information management and service system)3 d modeling capabilities,a three-dimensional geological modeling scheme suitable for complex geologic bodies in the bedrock is obtained.On this basis,the drilling database is compiled,the digital elevation model is established and the geological profile is drawn under the GIS platform.The three-dimensional structure model of bedrock geology in northern mountainous area of Tianjin is constructed by using cross-section man-machine interaction modeling,which fills the bedrock model of Jizhou District,covering the Quaternary,Mesozoic and Paleozoic Cambrian,The three-dimensional geologic model established by the Qingbaikou,Jixian and Great Wall,and so on,can basically reflect the bedrock formation and fracture in the study area,the three-dimensional structural model of bedrock geology in Tianjin is enriched,which provides a reference and basis for the establishment of three-dimensional geological modeling scheme for other bedrock.