| 扰动结构性软土地基的沉降特性分析 |
| |
| 引用本文： | 王军,高玉峰.扰动结构性软土地基的沉降特性分析[J].岩土力学,2006,27(8):1384-1388. |
| |
| 作者姓名： | 王军 高玉峰 |
| |
| 作者单位： | 1. 河海大学,岩土工程研究所,南京,210098;南京市建设工程施工图审查中心,南京,210024
2. 河海大学,岩土工程研究所,南京,210098 |
| |
| 摘 要： | 天然软黏土一般都具有一定的结构性，地基处理会改变结构性软土的工程特性。对比扰动软土原位和室内压缩曲线，分析了扰动软土的沉降机理及其压缩性的上下限，给出了考虑扰动影响的结构性软土沉降计算公式。算例分析表明，在孔隙比e0和0．42e0之间所对应的应力水平范围内，扰动会增加地基沉降量，附加沉降量大小与应力水平、扰动度直接相关，通常在0．1～0．3m之间，但随着应力水平的提高，不同扰动度的结构性软土地基的最终沉降量将趋于相同，得出的有关结论具有工程参考价值。
|
| 关 键 词： | 结构性 软土 扰动 应力水平 沉降特性 |
| 文章编号： | 1000-7598-（2006）08-1384-05 |
| 收稿时间： | 2004-10-25 |
| 修稿时间： | 2004-10-252005-06-14 |
Settlement characteristics analysis of disturbed structured soft clay ground |
| |
| WANG Jun,GAO Yu-feng.Settlement characteristics analysis of disturbed structured soft clay ground[J].Rock and Soil Mechanics,2006,27(8):1384-1388. |
| |
| Authors: | WANG Jun GAO Yu-feng |
| |
| Institution: | 1. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China; 2. Nanjing Censor Center of Construction Drawing Design, Nanjing 210024, China; |
| |
| Abstract: | Most natural clays have structural property, so the disturbance of foundation treatment changes engineering property of soft clay ground. Upper and lower limits of compression and settlement characteristics of structured soft clay are analyzed by comparing in-situ compression curve of disturbed soft clay with its experiment curve. Soft clay settlement calculation formula considering influence of disturbance is presented. The examples show that the construction disturbance enlarges settlement of structured soft clay ground between initial void ratio e0 and void ratio 0.42e0. Additional settlement is related to stress level and disturbance degree, whose value is in the range from 0.1 to 0.3 under the general stress level. The influence of disturbance becomes negligible with the increase of stress level finally. Relational conclusions are used for the project. |
| |
| Keywords: | structural property soft clay disturbance stress level settlement characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
