Study On Comprehensive Utilization Technology Of Provincial Highway Building Materials On GIS

The highway building material resources are the material foundation of highway construction. It is the key link to choose highway building materials for construction projects, and the choosing is reasonable or not directly linked to the construction quality and investment. Then the influential factors to choose highway building materials reasonably not only include the geographic and environmental features which the project is in, but also depend on understanding the information of distribution, reserves, type,price, performance and so on from transportation development plan, from deciding on mining for local highway building materials and from writing construction design, etc. In view of the cognition and research to highway building material resources at present still at the starting stage, it is more urgent to comprehensive master the related parameters of highway building material resources as distribution, exploitation status, technical performance, price information and so on, to establish database of provincial highway building material resources and to develop information management system which can fully, reasonably, economically, effectively and environmentally exploit the provincial highway building material resources by surveying the resource status and practical usage situation based on provincial highway construction development. So the target of quality, economic and social and environmental benefit unity can be realized in highway construction.Based on the physical geography and environment characteristics of Guangdong, the comprehensive investigation was carried out to the highway building material resources. By the collation and system analysis of test datas to sand, rock, line, cement, slag, soid and water in Guang dong, the mathematical evaluation model of comprehensive index method which combines the quality index and systematical analysis is established drawig in the toughts for constructing framework model of pressure-state-response from sustainable development and according to the factor-effect-response relation from system pressure, system status and system response by analyzing the impact on the ecologic environment to exploit highway building material resources, and further quantifying the effect of the environmental protection measures and rehabilitation measures. Using the model the ecological environment impact and recovery condition in mining area can be evaluated by pressure index(PI), status index(SI) and response index(RI). And all indexes weight of the model is calculated with the analytic hierarchy process. From this the ecological environment impact assessment method and evaluation index system are built for exploiting highway building materials. Due to the intermittent, scattered and massive distribution of highway building material resources they are different to be surveyed. Then it will be beneficial to the survey, regional analysis and utilization on the basis of the the otherness between different regions and the similarity among the same region of highway building material resources distribution to divide investigation area. Because the raw materials and site selection of line, cement and slag are closely related to rock of distribution, type, storage, etc.The distriution of water and sand has obvious geographical features which effects less to the division of investigation area. However, the division indexes are built up as the dominant factor of rock distribution with obvious scattered characteristics. On this basis,1:200million highway rock types map of province and1:200million highway soil types map of province are compiled utilizing the basic maps of1:100million geological map of province,1:100million magmatic rocks map of province,1:100million geological structure map of province,1:1400million soil texture map of China,1:100million quaternary geological map of China, etc.And then1:200million highway geotechnical types map of province and1:200million resources investigation division map of province are compiled according to the principles, methods and index system of region division.Finally, by using the platform of ArcGIS and the SQL Server database, the provincial highway building material resources database is developed and established on C#+ArcGIS Engine+ArcSDE with the topological structure, analysis function, graphics and non-graphics processing capability based on the investigation datum in Guang dong and the ecological environment impact evaluation system for exploiting highway building materials and the regional resources division. Even it can provide comprehensive and concrete and reliable and detail elemental datum and intelligent decision for relevant departments. Meanwhile, the provincial highway building material resources GIS is developed which can quickly check material type, reserves, traffic condition, position, name, material porperties, price and so on and can realize the check and comprehensive decision to highway building material resources.By studying on comprehensive utilization technology of provincial hightway building materials on CIS,All these, the certain promotion have arrived to popularize to comprehensive exploiting and utilizing technology of provincial hightway building material resources.