| 天然地基强迫振动测试与分析 |
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| 引用本文： | 王岚,吕景权,朱文久,郑水明.天然地基强迫振动测试与分析[J].大地测量与地球动力学,2011,31(2):84-88. |
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| 作者姓名： | 王岚 吕景权 朱文久 郑水明 |
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| 作者单位： | 1)中国地震局地震研究所，武汉 4300712)武汉地震工程研究院，武汉 4300713)北京东方新星石化工程股份有限公司，北京 100083 |
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| 基金项目： | 国家自然科学基金责报制项目:湖北强震观察和研究 |
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| 摘 要： | 在试验块体分别为明置与埋置情形时，利用激振器对某工程场地天然地基分别进行竖向、水平回转及扭转稳态强迫振动试验。试验结果表明，埋置情形试验的动力特性参数值均大于明置情形试验相应值；同种试验情形下，地基第一振型共振频率竖向最大，水平回转向其次，扭转向最小；土的参振质量均远大于基础本身质量。
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| 关 键 词： | 强迫振动 天然地基 动刚度 参振质量 动力特性 |
DYNAMIC TESTING AND ANALYSIS OF SUBSOIL |
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| Wang Lan,Lü Jinquan,Zhu Wenjiu,Zheng Shuiming.DYNAMIC TESTING AND ANALYSIS OF SUBSOIL[J].Journal of Geodesy and Geodynamics,2011,31(2):84-88. |
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| Authors: | Wang Lan Lü Jinquan Zhu Wenjiu Zheng Shuiming |
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| Affiliation: | 1)Institute of Seismology, CEA, Wuhan 4300712)Wuhan Institute of Earthquake Engineering,Wuhan 430071 3)Beijing Orient Nova Petrochemical Engineering Co.,Ltd, Beijing 100083 |
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| Abstract: | On the texts of the vertical,horizontal rotary and torsional harmonic forced vibration by exciter,dynamic property of subsoil for petrochemical engineering project are measured under open and embedded conditions of concrete testing block.On the basis of testing data,the dynamic parameters of subsoil such as dynamic stiffness,dynamic stiffness coefficient,damping ratio of 1st vibration mode and mass of vibration soil are calculated.The experimental results show that the dynamic parameters under embedded cond... |
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| Keywords: | forced vibration subsoil dynamic stiffness mass of vibration dynamic property |
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