| 粉喷桩复合地基桩土应力比试验研究 |
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| 引用本文： | 朱中卫,方磊.粉喷桩复合地基桩土应力比试验研究[J].岩土工程技术,2004,18(3):113-115. |
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| 作者姓名： | 朱中卫 方磊 |
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| 作者单位： | 东南大学岩土所,江苏,南京,210096 |
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| 摘 要： | 通过分析长江下游某高速公路粉喷桩处理路基段载荷试验和路堤填筑期间分别测试的桩与桩间土两者的应力变化 ,发现虽然两种试验状况下桩土分担荷载的过程有一定差异 ,但载荷试验中桩土应力比的最终稳定值与复合地基正常工作时桩土应力比值大致相同 ,即可通过载荷试验测得的桩土应力比来确定粉喷桩复合地基的设计参数。文中实例说明 ,该地区粉喷桩复合地基桩土应力比的设计值可取略小于载荷试验中所测桩土应力比
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| 关 键 词： | 载荷试验 桩土应力比 复合地基 柔性荷载 |
| 文章编号： | 1007-2993(2004)03-0113-03 |
| 修稿时间： | 2004年3月29日 |
Experimental Study on Stress Ratio between Pile and Soil of DJM Pile Composite Foundation |
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| Zhu Zhongwei,Fang Lei.Experimental Study on Stress Ratio between Pile and Soil of DJM Pile Composite Foundation[J].Geotechnical Engineering Technique,2004,18(3):113-115. |
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| Authors: | Zhu Zhongwei Fang Lei |
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| Abstract: | Introducing the study of the stress ratio between pile and soil in a superhighway along the Yangtze River, which has been improved by Dry Jet Mixing pile. The tests for stress ratio between pile and soil of Dry Jet Mixing pile composite foundation, during the bearing experiments and the constructing embankment, are both analyzed. Based on comparing the results of the tests, it is shown that two results are accordant. The final result shows it is feasible for making the stress ratio between pile and soil under the bearing test as the design parameter of the DJM pile composite foundation. |
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| Keywords: | bearing test stress ratio between pile and soil composite foundation flexible load |
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