| 考虑软土结构性的折线型强度公式及应用 |
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| 引用本文： | 高彦斌,郭永发,叶观宝.考虑软土结构性的折线型强度公式及应用[J].岩土力学,2011,32(7):2128-2132. |
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| 作者姓名： | 高彦斌 郭永发 叶观宝 |
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| 作者单位： | 1. 同济大学 岩土及地下工程教育部重点实验室，上海 200092；2. 同济大学 地下建筑与工程系，上海 200092 |
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| 基金项目： | 上海市重点学科建设项目资助，国家自然科学基金项目资助，教育部留学回国人员科研启动基金 |
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| 摘 要： | 结合上海某植物园堆山工程，通过直剪试验及三轴剪切试验，得到考虑软土结构性的折线型强度公式和不考虑软土结构性的直线型强度公式的参数，采用这两种方法对山体荷载作用下不同位置处的软土地基的强度增长进行了预测，并与现场十字板剪切试验结果进行了对比。结果表明：由于该工程的软土地基具有明显的结构性，采用直线型强度公式得到的地基强度增长量要大于采用采用折线型的增长量；另外，在应用考虑土的结构性的折线型强度公式时，应该尽量采用三轴试验参数而不是直剪试验的参数，这样得到的结果更接近十字板试验结果。
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| 关 键 词： | 软土 强度增长 折线型强度公式 直剪试验 三轴试验 十字板剪切试验 |
| 收稿时间： | 2009-11-20 |
Polygonal line strength equation of soft soil and its application considering soil structure |
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| GAO Yan-bin,GUO Yong-fa,YE Guan-bao.Polygonal line strength equation of soft soil and its application considering soil structure[J].Rock and Soil Mechanics,2011,32(7):2128-2132. |
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| Authors: | GAO Yan-bin GUO Yong-fa YE Guan-bao |
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| Institution: | 1. Key Laboratory of Geotechnical and Underground Engineering of Education Ministry, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | Strength increment of soft soil of a real project in Shanghai is studied.Strength parameters of polygonal line equation which considering the effect of soil structure and linear equation which didn't consider soil structure are obtained by direct shear test and triaxial test.Shear strength increment is calculated with these parameters by the two methods,and compared with the field results obtained by vane shear test.Because of soil structure,strength increment calculated by linear equation is greater than t... |
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| Keywords: | soft soil strength increment polygonal line strength equation direct shear test triaxial test vane shear test |
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