| 圆弧滑动法中总应力法和有效应力法适用性辨析 |
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| 引用本文： | 沈扬,张朋举,闫俊.圆弧滑动法中总应力法和有效应力法适用性辨析[J].河海大学学报(自然科学版),2011,39(5):517-522. |
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| 作者姓名： | 沈扬 张朋举 闫俊 |
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| 作者单位： | 河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098;河海大学岩土工程科学研究所,江苏南京210098 |
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| 基金项目： | 国家自然科学基金(50825901) |
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| 摘 要： | 针对地下水条件下圆弧滑动法中总应力法和有效应力法2种计算方法的假定,指出总应力法是从土条整体极限平衡角度分析的直观方法,但仅考虑了滑弧面上的水压力,在不考虑土条侧向作用力的瑞典条分法中使得安全系数计算值显著降低,需采用修正的总应力法公式；而有效应力法是以浮力形式综合考虑土条各侧面(含滑动面)上水压力的隐性方法,虽不完全...
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| 关 键 词： | 圆弧滑动法 总应力法 有效应力法 瑞典条分法 毕肖普法 水压力 浮力 |
| 修稿时间： | 2011/11/10 0:00:00 |
Applicability identification of total stress and effeetive stress methods in circular slide analysis |
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| SHEN Yang,ZHANG Peng-ju,YAN Jun.Applicability identification of total stress and effeetive stress methods in circular slide analysis[J].Journal of Hohai University (Natural Sciences ),2011,39(5):517-522. |
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| Authors: | SHEN Yang ZHANG Peng-ju YAN Jun |
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| Institution: | SHEN Yang1,2,ZHANG Peng-ju1,YAN Jun1,2(1.Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China,2.Institute of Geotechnical Engineering,China) |
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| Abstract: | Through analysis of assumptions of the total stress method and effective stress method,it is shown that the total stress method is an intuitive method on the basis of soil slice limit equilibrium.The water pressure on the slide surface is taken into account,and the lateral forces of slices are ignored in the Swedish slice method.Therefore,the calculated safety factor decreases significantly,and the formula should be modified.In the effective stress method,the water pressure on each side(including the slide ... |
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| Keywords: | circular slide method total stress method effective stress method Swedish slice method Bishop's method water pressure buoyancy |
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