基桩缺陷量化低应变动测研究

基桩缺陷量化低应变动测研究 English Version

基金项目: 河北省建设科学基金资助项目 (991 2 8)

1.School of Constructional Engineering Tianjin University Tianjin 300072 China 2.School of Civil Engineering and Architecture Hebei University of Technology Tianjin 300132 China

摘要: 针对瞬态激振条件下均质土中桩存在缺陷的定解问题 ,研制了分析程序。通过大量正演计算 ,拟合出桩周土为黏土、砂土、粉土条件下缺陷程度与时域速度响应波形中入射波与反射波波幅比之间的关系式。模型桩试验分析结果表明 ,本文给出的缺陷量化分析方法可取得显著效果。
- 基桩 /
- 缺陷 /
- 低应变动态测试 /
- 定量分析
Abstract: The software is developed for the vibration response to exciting force on defective piles in homogeneous soil.Using this software, the relationship between degree of defect and ratio of amplitude was studied, in which the influence of the characteristics of the soil around piles is taken into account.Finally, model pile test was done to verify the accuracy of quantitative analysis theory.
- pile /
- defect /
- dynamic test with low strain /
- quantitative study