本文關鍵詞：三維地質建模中的多源數(shù)據融合技術與方法　出處：《吉林大學學報(地球科學版)》2016年06期 　論文類型：期刊論文

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【摘要】：建模數(shù)據多源性是三維地質建模最大的特點,模型構建的關鍵是將這些數(shù)據有效地融合以提高模型的精度和可靠性。首先統(tǒng)一地理、地質、物探、化探、遙感、鉆探、采礦等建模數(shù)據的坐標系和比例尺,構建原始資料數(shù)據庫。然后運用等高線數(shù)據構建數(shù)字高程模型(DEM)面,以DEM面為載體實現(xiàn)了地表填圖路線PRB(point-routing-boundary)數(shù)據、矢量地質圖、柵格地質圖、遙感影像圖等地表地質數(shù)據的有效融合;在已有地表地質數(shù)據和地下地質數(shù)據約束的條件下,通過約束及離散光滑插值技術實現(xiàn)了地表地質數(shù)據和地下地質數(shù)據的融合;根據已有建模數(shù)據確定合理的建模單元,對數(shù)據庫中的點、線、面、體等數(shù)據進行歸類,構建與建模單元一致的原始資料數(shù)據庫。最后在原始資料數(shù)據庫中,以高精度地質數(shù)據為約束對物探數(shù)據進行地質解譯,綜合已有建模數(shù)據,并考慮地質體的三維空間展布,實現(xiàn)了不同精度數(shù)據之間的融合;以主要建模數(shù)據構建初始地質界面,以高精度建模數(shù)據對已構建的初始地質界面進行約束,實現(xiàn)了主要建模數(shù)據與次要建模數(shù)據的融合。其中,點對線約束、點(線)對面約束、面對面約束等約束建模技術在建模數(shù)據融合過程中起重要作用。
[Abstract]:Multi-source modeling data is the most important feature of 3D geological modeling. The key to model construction is to integrate these data effectively to improve the accuracy and reliability of the model. Firstly, unified geography, geology, geophysical exploration, geochemical exploration, remote sensing. The coordinate system and scale of the modeling data such as drilling and mining are used to construct the original data database. Then the digital elevation model is constructed by using the contour data. Based on the DEM surface, the surface mapping route, vector geological map and grid geological map are realized. Effective fusion of surface geological data such as remote sensing image map; Under the condition of the existing surface geological data and underground geological data constraint, the fusion of surface geological data and underground geological data is realized by means of constraint and discrete smooth interpolation technology. According to the existing modeling data to determine the reasonable modeling unit, the data in the database such as points, lines, surfaces, bodies and so on are classified, and the original data database which is consistent with the modeling unit is constructed. Finally, in the original data database. The geological interpretation of geophysical data is carried out with the constraint of high precision geological data. The existing modeling data are synthesized and the 3D spatial distribution of geological body is considered to realize the fusion of different precision data. The primary geological interface is constructed from the main modeling data and the initial geological interface is constrained by the high-precision modeling data. The fusion of the main modeling data and the secondary modeling data is realized. Point (line) constraint, face to face constraint and other constraint modeling techniques play an important role in modeling data fusion process.
【作者單位】： 東華理工大學放射性地質與勘探技術國防重點學科實驗室;東華理工大學地球科學學院;東華理工大學江西省數(shù)字國土重點實驗室;
【基金】：中國地質調查局地質大調查項目(1212011120836,1212011220248) 放射性地質與勘探技術國防重點學科實驗室開放基金項目(RGET1305) 江西省數(shù)字國土重點實驗室開放基金項目(DLLJ201614)~~
【分類號】：P628
【正文快照】： Technology and Method of Multi-Data Merging in 3DGeological ModelingWu Zhichun1,2,3,Guo Fusheng2,Lin Ziyu2,Hou Manqing1,2,3,Luo Jianqun1,2,31.Key Laboratory for Radioactive Geology and Exploration Technology,Fundamental Science forNational Defense,East C，

本文編號：1405836