本文關(guān)鍵詞：三維地質(zhì)建模中的多源數(shù)據(jù)融合技術(shù)與方法　出處：《吉林大學(xué)學(xué)報(bào)(地球科學(xué)版)》2016年06期 　論文類(lèi)型：期刊論文

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【摘要】：建模數(shù)據(jù)多源性是三維地質(zhì)建模最大的特點(diǎn),模型構(gòu)建的關(guān)鍵是將這些數(shù)據(jù)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(zhì)、物探、化探、遙感、鉆探、采礦等建模數(shù)據(jù)的坐標(biāo)系和比例尺,構(gòu)建原始資料數(shù)據(jù)庫(kù)。然后運(yùn)用等高線數(shù)據(jù)構(gòu)建數(shù)字高程模型(DEM)面,以DEM面為載體實(shí)現(xiàn)了地表填圖路線PRB(point-routing-boundary)數(shù)據(jù)、矢量地質(zhì)圖、柵格地質(zhì)圖、遙感影像圖等地表地質(zhì)數(shù)據(jù)的有效融合;在已有地表地質(zhì)數(shù)據(jù)和地下地質(zhì)數(shù)據(jù)約束的條件下,通過(guò)約束及離散光滑插值技術(shù)實(shí)現(xiàn)了地表地質(zhì)數(shù)據(jù)和地下地質(zhì)數(shù)據(jù)的融合;根據(jù)已有建模數(shù)據(jù)確定合理的建模單元,對(duì)數(shù)據(jù)庫(kù)中的點(diǎn)、線、面、體等數(shù)據(jù)進(jìn)行歸類(lèi),構(gòu)建與建模單元一致的原始資料數(shù)據(jù)庫(kù)。最后在原始資料數(shù)據(jù)庫(kù)中,以高精度地質(zhì)數(shù)據(jù)為約束對(duì)物探數(shù)據(jù)進(jìn)行地質(zhì)解譯,綜合已有建模數(shù)據(jù),并考慮地質(zhì)體的三維空間展布,實(shí)現(xiàn)了不同精度數(shù)據(jù)之間的融合;以主要建模數(shù)據(jù)構(gòu)建初始地質(zhì)界面,以高精度建模數(shù)據(jù)對(duì)已構(gòu)建的初始地質(zhì)界面進(jìn)行約束,實(shí)現(xiàn)了主要建模數(shù)據(jù)與次要建模數(shù)據(jù)的融合。其中,點(diǎn)對(duì)線約束、點(diǎn)(線)對(duì)面約束、面對(duì)面約束等約束建模技術(shù)在建模數(shù)據(jù)融合過(guò)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(xué)放射性地質(zhì)與勘探技術(shù)國(guó)防重點(diǎn)學(xué)科實(shí)驗(yàn)室;東華理工大學(xué)地球科學(xué)學(xué)院;東華理工大學(xué)江西省數(shù)字國(guó)土重點(diǎn)實(shí)驗(yàn)室;
【基金】：中國(guó)地質(zhì)調(diào)查局地質(zhì)大調(diào)查項(xiàng)目(1212011120836,1212011220248) 放射性地質(zhì)與勘探技術(shù)國(guó)防重點(diǎn)學(xué)科實(shí)驗(yàn)室開(kāi)放基金項(xiàng)目(RGET1305) 江西省數(shù)字國(guó)土重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金項(xiàng)目(DLLJ201614)~~
【分類(lèi)號(hào)】：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(hào)：1405836