| 水泥土桩复合地基桩土应力比的一种解析算法 |
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| 引用本文： | 秦然,陈征宙,董平.水泥土桩复合地基桩土应力比的一种解析算法[J].岩土力学,2001,22(1):96-98. |
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| 作者姓名： | 秦然 陈征宙 董平 |
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| 作者单位： | 南京大学地球科学系, |
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| 摘 要： | 选取常用的双曲线函数来表征单桩与地基土的荷载－沉降曲线，导出了一组确定桩土应力比的解析算式，分析了桩土应力比与总荷载的关系，并指出置换率和桩土极限强度对桩土应力比的影响，运用该组公式对两组实测数据进行理论拟合，证实能反映实际情况，对复合地基的设计有参考意义。
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| 关 键 词： | 水泥土桩 复合地基 桩土应力比 解析解 双曲线函数 置换率 |
| 文章编号： | 1000-7598-(2001)01-0096-03 |
| 修稿时间： | 2000年4月29日 |
Analytical calculation on
pile-soil stress ratio of cement-soil foundation |
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| QIN Ran,CHEN Zhengzhou,DONG Ping.Analytical calculation on
pile-soil stress ratio of cement-soil foundation[J].Rock and Soil Mechanics,2001,22(1):96-98. |
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| Authors: | QIN Ran CHEN Zhengzhou DONG Ping |
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| Abstract: | By means of hyperbola load-settlement function applied to pile and soil,an analytical equation for analyzing pile-soil stress ratio(PSSR)is established. According to the equation,PSSR increases or decreases with the vertical load in the pattern of hyperbola,which is determined by the strength and tangent modulus of pile and soil. The influence of displacement ratio and compressive modulus on PSSR curve is also presented. In addition,two practical examples are used to test the theoretical results. |
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