Quantitative Nondestructive Evaluation of Safety and Performance of Geostructures Using Seismic Characterization of Properties and Discontinuous Deformation Analysis

利用地震特性特征和不连续变形分析对地质结构的安全性和性能进行定量无损评估

• 批准号: 9212737
• 负责人: Richard Goodman
• 金额: $ 18万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-11-01 至 1996-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9212737&HistoricalAwards=false
• 关键词: Quantitative; Nondestructive; Evaluation; Safety; Performance

The objective of this research is to use recent advances to develop the experimental and interpretive means to characterize fractures in rock and concrete. Recent advances in the understanding of the effects of discontinuities on seismic wave transmission make it feasible to locate and characterize macroscopic discontinuities in rock and concrete structures, as well as to determine their strength and deformability parameters. These characterizations will then be used in a Discontinuous Deformation Analysis (DDA) model to build a numerical simulation that evaluates the overall properties of the defective zone within the structure or foundation. The methods will be developed in the laboratory, tested in bench scale experiments, and applied in a series of preliminary field trials.

这项研究的目的是利用最新的进展， 开发实验和解释手段， 岩石和混凝土的裂缝的最新进展 不连续性对地震波影响的认识 传输使得定位和表征 岩石和混凝土结构的宏观不连续性，如 以及确定它们的强度和可变形性参数。 然后，这些特征将用于不连续的 变形分析（DDA）模型建立数值模拟 评估缺陷区域的整体性能 在结构或基础上。这些方法将在 在实验室中，在实验室规模实验中进行测试，并应用 进行了一系列初步的田间试验