| 赵明阶.根据波速计算多相土石地基压实度的理论模型[J].水利学报,2007,38(5):618-623 |
| 根据波速计算多相土石地基压实度的理论模型 |
| Theoretical model for calculating compactness of soil stone mixture foundation according to wave propagation velocity |
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| DOI： |
| 中文关键词: 土石地基 压实度 波速 |
| 英文关键词: foundation soil stone mixture compactness wave propagation velocity |
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| 中文摘要: |
| 本文基于多相复合介质的波动传播特性，导出介质内纵、横波速的理论计算公式。通过对影响因素分析，建立了横波波速与土石复合介质的干密度之间的近似理论关系。在此基础上，推导出土石地基压实度的波速计算理论模型的近似表达式。最后进行了现场地基的波速测试和灌砂法测试，通过理论计算和灌砂法测试结果的对比分析，表明该近似模型是可行的，并且其在对非均匀土石复合地基的压实质量评价中优越于传统的密度法。 |
| 英文摘要: |
| According to the properties of wave propagation in multiphase medium, the theoretical formulas for calculating the P wave and S wave velocity are deduced. The factors influencing the properties of wave propagation are analyzed. On this basis an approximate relationship between wave velocity and dry density of soil stone mixtures is suggested. Then the model for calculating the compactness according to wave velocity is established. The validity of the model is verified by in situ tests. |
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