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发布时间:2019-01-10 20:49
【摘要】:我国是一个多发地震的国家,对于人口密集的国家,应做好防震减灾工作,这将直接影响到我国的经济发展及社会安定。为此,需要采取各种有力措施,尽量减少地震灾害的损失,而在震害防御和抗震减灾工作中运用先进的科技手段,这是地震工程和土动力学的发展趋势。 现代社会信息技术迅速发展,利用现代3S技术——GIS(地理信息系统)、GPS(全球定位系统)、RS(遥感),以数字方式获取、处理和应用于与地球自然和人文因素有关的空间数据,将为地震工程和土动力学发展提供新的动力。本文立足于先进的ArcGIS技术,研究岩土地震工程方面的问题,开发区域场地地震稳定性和液化程度评估技术,以唐山及其南郊地区为例,初步形成基于ArcGIS岩土震害区划系统,为未来进一步研究和工程应用提供基础。 本文主要工作和成果为: 1.阐述了ArcGIS10.0的结构体系和使用方法,分析对比了ArcGIS与MAPGIS优缺点,重点研究了ArcGIS10.0的数据库地理数据库Geodatabase的建设方法,以地貌专题图的制作过程为例,实现了制作的整个流程。 2.基于ArcGIS10.0,以唐山及其南郊地区为例,提出了场地地震稳定性评价方法的流程和数字化、可视化的技术路线。 3.在研究唐山及其南郊地区的地震稳定性时,主要考虑了断层、地形地貌、地下水位埋深分布、动力系数、场地类别五个因素,在ArcGIS中建立了与这五个因素相对应的数据库,实现了五个要素图层的自动叠加,进而给出了唐山及其南郊地震稳定性潜势图。克服了MAPGIS不能自动分类的缺点,大大节省了时间,提高了效率 4.收集整理了唐山及其南郊地区65个钻孔资料,在ArcGIS10.0上完成钻孔图形数据库和属性数据库的建立。根据钻孔数据,采用两种方法进行液化判别,利用克里格插值法,得出未知区域的液化情况,给出了唐山及其南郊液化区划图。 5.运用ArcGIS Engine结合VB进行集成二次开发,以唐山及其南郊地区为例,实现了包括场地地震稳定性分析、液化区划分析和钻孔管理这三个主要模块在内的岩土震害区划系统的初步设计
[Abstract]:China is a earthquake-prone country, for the densely populated countries, we should do a good job in earthquake prevention and disaster reduction, which will directly affect our economic development and social stability. Therefore, it is necessary to take all kinds of effective measures to reduce the loss of earthquake disaster as far as possible, and to use advanced scientific and technological means in earthquake disaster prevention and seismic disaster reduction, which is the development trend of earthquake engineering and soil dynamics. With the rapid development of information technology in modern society, GIS (Geographic Information system), GPS (Global Positioning system), RS (remote Sensing) is used to obtain, The processing and application of spatial data related to the earth's natural and human factors will provide new impetus for the development of seismic engineering and soil dynamics. Based on the advanced ArcGIS technology, this paper studies the problems in geotechnical seismic engineering, develops the regional site seismic stability and liquefaction evaluation technology, taking Tangshan and its southern suburbs as an example, preliminarily forms a geotechnical damage zoning system based on ArcGIS. It provides the foundation for further research and engineering application in the future. The main work and achievements of this paper are as follows: 1. This paper expounds the structure system and application method of ArcGIS10.0, analyzes and compares the advantages and disadvantages of ArcGIS and MAPGIS, and emphatically studies the construction method of Geodatabase, a database geographic database of ArcGIS10.0, taking the making process of geomorphological thematic map as an example. The whole process of production is realized. 2. Based on ArcGIS10.0, taking Tangshan and its southern suburb as an example, the flow chart and digitized and visualized technical route of site seismic stability evaluation method are put forward. 3. In the study of seismic stability in Tangshan and its southern suburbs, five factors are considered, such as faults, landforms, distribution of groundwater table depth, dynamic coefficient and site type. A database corresponding to these five factors is established in ArcGIS. The automatic superposition of five element layers is realized, and the seismic stability potential map of Tangshan and its southern suburbs is given. It overcomes the shortcoming that MAPGIS can not be classified automatically, saves time and improves efficiency greatly. The data of 65 boreholes in Tangshan and its southern suburbs were collected and sorted, and the establishment of borehole graphic database and attribute database on ArcGIS10.0 was completed. According to borehole data, two methods are used to discriminate liquefaction. By using Kriging interpolation method, the liquefaction of unknown areas is obtained, and the liquefaction zoning map of Tangshan and its southern suburbs is given. 5. Using ArcGIS Engine and VB to carry out integrated secondary development, taking Tangshan and its southern suburbs as examples, the preliminary design of geotechnical seismic hazard zoning system including site seismic stability analysis, liquefaction zoning analysis and borehole management is realized, which includes three main modules: site seismic stability analysis, liquefaction zoning analysis and borehole management.


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相关硕士学位论文 前1条

1 何斌;基于GIS的桩基施工设计可视化管理系统[D];中国科学院研究生院(武汉岩土力学研究所);2007年



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