摘要
通过工程实例介绍了激振法测试地基土的动力参数的原理、设备、工作方法及数据处理。即利用模拟基础在明置和埋置情况下,进行了强迫振动竖直向、水平回转向和自由振动竖直向、水平回转向的激振法测试。测定基础强迫振动及自由振动幅频变化曲线和波形频率曲线。通过分析计算,得出地基土的动力特性参数,并初步探讨影响地基动力参数的因素。
Through engineering examples,this paper introduces the principle,equipment,working method and data processing of vibration excitation method for testing dynamic parameters of foundation soil. The excitation method test of forced vibration in vertical direction,horizontal direction and free vibration in vertical direction and horizontal direction by using simulation foundation in open and buried conditions. The amplitude-frequency curves and waveform-frequency curves of forced vibration and free vibration are measured.Through analysis and calculation,the results are obtained. The dynamic characteristic parameters of foundation soil. The factors affecting the dynamic parameters of foundation are discussed.
出处
《建筑技术开发》
2019年第13期109-111,共3页
Building Technology Development
关键词
动力基础
激振法
强迫振动
自由振动
地基动力参数
power base
excitation method
forced vibration
free vibration
dynamic parameters of foundatio
