| 基于正交试验的复合地基沉降影响因素分析 |
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| 引用本文： | 王晶,经绯,程雷.基于正交试验的复合地基沉降影响因素分析[J].力学学报,2008,16(5):645-650. |
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| 作者姓名： | 王晶 经绯 程雷 |
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| 作者单位： | 安徽港航勘测设计院 合肥 230011;
东南大学交通学院 南京 210096;
江苏淮安交通勘察设计研究院 淮安 223001 |
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| 摘 要： | 结合苏北滨海平原连云港地区海相沉积的软土粘粒含量大、海侵海退、多夹层等特点及某高速公路沉降观测资料,考虑复合地基段沉降效果良好、固结显著, 对水泥搅拌桩处理海相软土地基实测累计沉降的影响因素进行单因素和多因素分析。在正交设计理论的基础上, 提出似正交设计方法并重点对软土厚度、预压方式、填土高度、桩长和桩间距进行多因素分析, 计算证明了预压方式和填土高度对水泥土桩复合地基加固软土地基的实测累计沉降的显著影响, 建议在该工程软土厚度范围变化不大的地段, 应优先调整预压方式并控制填土高度。
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| 关 键 词： | 水泥土搅拌桩复合地基 沉降观测 正交试验 预压方式 |
| 收稿时间： | 2007-12-18 |
| 修稿时间： | 2008-03-04 |
ORTHOGONAL TEST BASED ANALYSIS OF FACTORS AFFECTING SET TLEMENT IN COMPOSITE FOUNDATION ON SOFT SOILS |
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| WANG Jing,JING Fei,CHENG Lei.ORTHOGONAL TEST BASED ANALYSIS OF FACTORS AFFECTING SET TLEMENT IN COMPOSITE FOUNDATION ON SOFT SOILS[J].chinese journal of theoretical and applied mechanics,2008,16(5):645-650. |
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| Authors: | WANG Jing JING Fei CHENG Lei |
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| Institution: | Por t and Waterway Survey ing - D esign ing Institu te of Anhui P rovince, H efei 230011;
Southeast Un iver sity, Nanjing 210096;
Transpor ta tion Survey ing - Designing Institute of H uaian, Huai'an 223001 |
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| Abstract: | Th is paper is based on the characters o f soft clayey soils and observed sett lem ent data of one highw ay in L ianyungang area. It ana lyses the affecting factors of the in- data accumu lated sett lement through sing le factor a nalysism ethod andmu ltifactor ana lysis method. It takes in to considerat ion of the fine settlement and conso lidation effec.t Pseu- orthogonal design me thod is put forw ard, and is used in the actual pro jec.t The resu lts conc lude: preloading method and the height of filled so ilhave reasonab le affects to composite foundat ion settlement in th is pro ject on th is seaside clay area. A s a resu l,t it is suggested that ad just pre load ing method and control the he ight o f filled so il at f irst in the area where the range of thickness of soft c layey is sma l.l |
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| Keywords: | DJM composite foundation Settlement observa tion Orthogonal test Preloading method |
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