人民珠江2024，Vol.45Issue(1)：95-102,130,9.DOI:10.3969/j.issn.1001-9235.2024.01.009
国内100m以上重力坝地基弹性参数与波速分析
Analysis on Elastic Parameter and Wave Velocity of Gravity Dam Foundation with Dam Height over 100 m in China
摘要
Abstract
To illustrate the foundation conditions of gravity dams over 100 m in China and support wavefield analysis at project sites,this paper collects the foundation parameters of 68 gravity dams to analyze the statistical characteristics of elastic parameters and wave velocity.The result shows that the number of dams decreases rapidly with the height,with 3 gravity dams higher than 200 m.The distribution of gravity dams over 100 m is uneven,with a significant number in the southwest area of China.About 93%of gravity dams are with a foundation elastic modulus of 6 GPa to 28 GPa,and the average value is 16.7 GPa.The Poisson's ratios of foundations are from 0.17 to 0.32.The mass densities of foundations are from 2000 kg/m3 to 2900 kg/m3.In terms of wave velocities,about 96%of longitudinal wave velocities are from 1500 m/s to 3900 m/s,and about 95%of transverse wave velocities vary from 800 m/s to 2300 m/s.The mean and standard deviation of longitudinal wave velocity are 2718 m/s and 639 m/s,and those of transverse wave velocity are 1574 m/s and 383 m/s.关键词
重力坝/地基/弹性参数/波速/统计分析Key words
gravity dams/foundation/elastic parameters/wave velocity/statistical analysis分类
建筑与水利引用本文复制引用
吴茂林,何卫平,姚惠芹,乐明锴,刘聪宇..国内100m以上重力坝地基弹性参数与波速分析[J].人民珠江,2024,45(1):95-102,130,9.基金项目
国家自然科学基金青年基金资助项目(51809152) （51809152）
