| 碎石桩复合地基桩土应力比及承载力计算 |
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| 引用本文： | 刘杰,张可能.碎石桩复合地基桩土应力比及承载力计算[J].工程勘察,2002(6). |
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| 作者姓名： | 刘杰 张可能 |
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| 作者单位： | 株洲工学院土木工程系，中南大学资源环境与建筑工程学院 湖南株洲412008中南大学资源环境与建筑工程学院，长沙410083，长沙410083 |
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| 基金项目： | 湖南省教育厅基金资助项目 (0 1C347) |
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| 摘 要： | 根据桩 土侧向变形及竖向变形协调条件 ,应用弹性理论导出了桩及桩周土的应力 应变关系 ,得出了桩体材料屈服时桩 土应力比的计算式。推出了桩周土处于极限平衡状态下 ,碎石桩极限承载力计算式。指出用碎石桩加固软土地基其效果比较明显 ,但加固土的变形模量大于 8MPa的地基 ,效果不很明显。并通过工程实例 ,将本文计算结果与实验结果作了对比
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| 关 键 词： | 碎石桩 复合地基 应力比 |
Calculations for Stress Ratio and Bearing Capacity of Gravel Piles |
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| Liu Jie et al..Calculations for Stress Ratio and Bearing Capacity of Gravel Piles[J].Geotechnical Investigation & Surveying,2002(6). |
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| Authors: | Liu Jie |
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| Affiliation: | Liu Jie et al. |
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| Abstract: | Based on the harmony conditions of the lateral and vertical deformation the relationship of stress and strain between the pile and the pile\|side soil is derived by the elastic theory.The formula for the calculation of pile\|soil stress ratio when the yielding of pile materials is obtained and the ultimate bearing capacity of the gravel pile is derived under the ultimate equilibrium state.It is pointed out that the effectiveness reinforced by gravel piles in the weak ground is obvious,but the reinforced effectiveness is very finite for the deformation modulus of ground to excess 8 MPa.Finally,the calculating results are compared with test results from engineering examples. |
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| Keywords: | gravel pile composite foundation stress ratio |
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