项目名称: 多源工程勘察数据统计特征与插值方法研究
项目编号: No.51208303
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 建筑环境与结构工程学科
项目作者: 王长虹
作者单位: 上海应用技术学院
项目金额: 25万元
中文摘要: 多源勘察技术手段尤其是原位测试技术在岩土工程领域中应用日益广泛,但是目前国内外对岩土参数空间互相关性和多源勘察信息融合理论研究尚少,缺乏一种较为有效的统计和插值方法,难以建立综合勘察空间信息库。因此,本项目依托上海世博园区后续再开发建设工程,在信息熵论和空间统计学变异性理论成果的基础上,研究不同勘察位置、不同勘察对象获取的多源岩土参数的空间统计特征与插值方法,以及探讨不同勘察手段、不同勘察精度获取的多源岩土参数的空间信息融合与插值方法,进一步确定岩土参数空间统计特征的局部奇异性。通过数据交叉试验和工程补勘试验检查理论方法的可靠性,研发随机场应用程序,旨在探索工程勘察数据之间的空间互相关统计特征和多源信息融合理论,掌握软土地区的多源岩土参数随机场规律,建立一种有效的空间插值方法。项目研究成果将对相关地区应用多源勘察技术手段,建立综合勘察空间信息库具有借鉴和指导作用。
中文关键词: 岩土参数;随机场;数据融合;奇异性;动态更新
英文摘要: Multi-source geotechnical survey technologies especially in situ testing are widely used in geotechnical engineering,but the current research about spatial cross correlation and multi-source information integration of geotechnical parameters is less concerning,the lacking of an effective statistics and interpolation method, which makes difficult to build multi-source geotechnical survey spatial database. Therefore, the application focus on spatial cross correlation,information fusion method and random field interpolation studing, which is based on New Shanghai World Expo project as well as information entropy and spatial statistical variogram theory. The main content would be in the following different aspects of work: multi-source spatial statistical characteristics of geotechnical parameters and research on interpolation methods based on different spatial geotechnical survey position, or different reconnaissance objects acquisition; another research ramification is based on different geotechnical survey technologies, or different geotechnical survey data accuracy; moreover,the local singularity of statistical characteristics of the geotechnical random field would be discussed.Whether the research method is adaptive through the data across test and engineering supplementary exploration work, R & D of random fi
英文关键词: geotechnical parameters;spatial random field;data assimilation;local singularity;dynamic update