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1.
周翠英  陈恒  刘祚秋  黄显艺  何兴 《岩土力学》2004,25(9):1469-1474
地下环境信息系统是运用岩土工程、地理学、计算机图形学、计算数学等多学科理论和方法,以GIS技术为基础,结合数据库处理、C 语言编程、OpenGL编程技术、三维图像处理技术建立的对地下环境信息进行数据综合管理和分析的大型信息管理系统。结合笔者开发的广东省东深供水改造工程地下环境信息系统特点,阐述了重大工程地下环境信息系统的功能特征:探讨了GIS二次开发的主要技术,包括:SQL Server数据库处理技术、OpenGL三维图形编程技术、C Builder面向对象编程技术、MAPGIS二次开发技术等;建立了地层三维模型,并提出了映射变换和插值技术相结合的地层切剖原理,以及在地层三维显示和分析中实用的径向基函数插值、滑动最小二乘插值、分片Lagrange插值等方法;开发了数字制图与分析、地基基础设计计算与稳定性分析、三维空间分析的主要功能;提出了地面结构景观和地下空间一体化分析的研究方向,并初步实现其分析功能。最后,在东深供水改造工程中进行了成功应用。  相似文献   

2.
以ArcView3.2为平台的砂岩铀矿勘查信息系统   总被引:1,自引:0,他引:1  
韩绍阳  侯惠群  黄树桃 《铀矿地质》2001,17(4):245-251,256
本系统以地理信息系统软件ArcView3.2为开发平台,应用ArcView3.2提供了AVENUE语言进行二次开发,对砂岩铀矿勘查中取得的各种数据、图件、分析结果和一些空间数据分析方法及综合评价模型进行集成;在继承ArcView3.2已有功能的基础上,根据多源地学信息管理和综合评价的需要,在平台内通过AVENUE语言编写程序代码增添新的系列功能并形成友好的用户操作界面,更好地实现数据库管理、信息查询、图形编辑、地质制图、空间分析、模型分析和各种输出功能。  相似文献   

3.
基于GIS技术的区域地质灾害信息分析系统研究   总被引:39,自引:2,他引:39  
作为GIS技术应用的一个方向,作者经过多年的研究,利用GIS强大的空间分析功能和空间数据库管理能力,基于MAPGIS地理信息系统软件及其提供的二次开发函数,通过信息量模型与GIS技术的有机结合,实现了区域地质灾害空间预测制图与分析的自动化系统,即地质灾害信息分析系统.该系统具有进行任意图形边界的多图层矢量数据叠加功能,克服了地质灾害空间预测中因栅格数据叠加而产生的误差,使预测过程和预测结果更符合地质灾害发生的地质背景.文章以我国地质灾害高发区的陕西省旬阳地区为例,对地质灾害信息分析系统进行了应用研究.  相似文献   

4.
利用地学中常用的Mapgis、Grapher等软件进行地形地质剖面图绘制,方便实用,提高绘制精度,并且其计算和操作过程非常直观。在地质工作中使用Grapher、Mapgis软件进行地质剖面绘制,可以方便进行地学分析,提高工作效率,取得良好的效果。  相似文献   

5.
葛云锦  周瑶琪  娄琦 《地质论评》2007,53(6):850-864
本文介绍了Mapgis在松潘—阿坝东缘野外地质综合调查中的应用。包括在野外工作Mapgis结合手持GPS数据点直接成图,室内作综合地质图的基本方法和操作步骤,重点阐述了图层划分和属性编辑。  相似文献   

6.
基于组件体系结构的地质GIS应用系统开发研究   总被引:4,自引:3,他引:4  
组件技术和面向对象技术是现代GIS软件的发展趋势之一。提出应用基于COM的组件技术开发地质领域GIS应用系统。该系统建立在组件式GIS通用平台上,用构造COM对象的方法建立扩展的地质空间数据模型,各种处理、分析和解释的地质研究模型和可视化系统均以组件形式集成到系统中,并直接处理各种地质对象,以突破传统的以地图为处理基础的空间处理方式,提高地质空间分析和处理能力。  相似文献   

7.
数字式全景钻孔摄像系统及应用   总被引:14,自引:3,他引:14  
数字式全景钻孔摄像系统是一套全新的智能型勘探设备,代表了钻孔摄像技术的发展方向,它的关键技术在于全景摄像和数字化技术,其中,全景摄像技术解决了三维图像与其空间坐标的关系;数字化技术解决了图像的形成、处理与还原,地质资料的计算、统计与分析,以及二次开发的能力,通过对其基本原理和应用情况的介绍,反映了该系统的科学性、先进性以及其采样技术的完整性、准确性。  相似文献   

8.
本文结合制作地质图的制图实践,介绍了利用Mapgis系统强大的图形数据管理功能编制地质图的过程和方法,通过SQL查询来实现图形参数与图形属性的统一,从而提高了制图效率。  相似文献   

9.
陈玲玲  王亮 《贵州地质》2008,25(1):64-66
本文是第二代数字重力图制图的工作经验总结,主要介绍了制图前数据的准备以及利用Mapgis软件进行数据成图时网格参数和投影参数的选择等一些问题.  相似文献   

10.
GIS在地质生态环境研究中的应用现状及发展趋势   总被引:4,自引:0,他引:4  
针对地质生态环境数字化和信息化的发展,综述了GIS在地质生态环境数据采集与动态监测、地质生态环境数据管理、地质生态环境分析与评价和地质生态环境制图等四个方面的应用现状,并探讨了GIS技术在该领域的研究中存在问题和发展趋势.  相似文献   

11.
Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco.  相似文献   

12.
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414.  相似文献   

13.
Robert L. Linnen   《Lithos》2005,80(1-4):267-280
The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H2O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H2O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species.  相似文献   

14.
15.
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003).  相似文献   

16.
正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.)  相似文献   

17.
正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology,  相似文献   

18.
正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.)  相似文献   

19.
正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se-  相似文献   

20.
正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with  相似文献   

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