| 粉喷桩复合地基附加应力的Boussinesq-Mindlin联合解法 |
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| 引用本文： | 闫宝杰,宋修广,岳跃群. 粉喷桩复合地基附加应力的Boussinesq-Mindlin联合解法[J]. 岩土力学, 2007, 28(6): 1255-1258 |
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| 作者姓名： | 闫宝杰 宋修广 岳跃群 |
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| 作者单位： | 1. 东南大学 交通学院，南京 210096；2. 山东大学 土建与水利学院，济南 250061；3. 中铁14局集团第三工程有限公司，山东 兖州 272100 |
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| 摘 要： | 粉喷桩复合地基常用的沉降计算方法精度较低，主要原因是附加应力计算方法不合理。针对粉喷桩桩身荷载传递规律及其受力特点，提出采用Boussinesq解和Mindlin解联合求解的方法计算附加应力场，推导了相应的计算公式，并进行了多种计算方法对比分析了加固区和下卧层附加应力分布特点。计算结果表明，提出的联合求解法计算精度高，合理可行。
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| 关 键 词： | 粉喷桩 复合地基 联合求解法 荷载传递规律 |
| 文章编号： | 1000-7598-（2007）06-1255-04 |
| 收稿时间： | 2005-03-25 |
| 修稿时间： | 2005-03-25 |
Boussinesq-Mindlin united solution method for DJMP composite foundation additional stress |
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| YAN Bao-jie,SONG Xiu-guang,YUE Yue-qun. Boussinesq-Mindlin united solution method for DJMP composite foundation additional stress[J]. Rock and Soil Mechanics, 2007, 28(6): 1255-1258 |
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| Authors: | YAN Bao-jie SONG Xiu-guang YUE Yue-qun |
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| Affiliation: | 1. College of Transportation, Southeast University, Nanjing 210096, China; 2. School of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, China; 3. China Railway 14 Group, The Third Project Co. Ltd., Yanzhou 272100, China |
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| Abstract: | Because of the solution method unreasonable,the settlement calculation precision for the dry jet mixing pile(DJMP) is unconvincing.Based on the load transfer behavior and the characteristic of DJMP,using Boussinesq solution and Mindlin solution,the additional stress is calculated.Different calculation methods are used to analyse the stress distributing characteristic for stabilized layer and the underlying soft layer.The correlative formula is derived.Calculation result shows that the Boussinesq-Mindlin united solution method is reasonable and feasible. |
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| Keywords: | dry jet mixing pile composite ground Boussinesq-Mindlin united solution load transfer behavior |
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