| 深厚淤泥地基中高路堤桥台基桩工作性状的现场实测与分析 |
| |
| 引用本文： | 岳健,冷伍明,聂如松,杨奇.深厚淤泥地基中高路堤桥台基桩工作性状的现场实测与分析[J].岩土力学,2011,32(11):3333-3340. |
| |
| 作者姓名： | 岳健 冷伍明 聂如松 杨奇 |
| |
| 作者单位： | 中南大学 土木工程学院,长沙,410075 |
| |
| 基金项目： | 国家自然科学基金资助项目，中央高校科研基本业务费 |
| |
| 摘 要： | 针对位于深厚淤泥地基上的高路堤桥台的冲孔灌注桩,进行了1.5 a的现场实测,测试了修筑承台前、修筑桥台期间、邻近过渡段的路基填土期间、过渡段的路基填土期间及跨梁修筑后的桩身应变和桩侧土体孔隙水压力,也测试了基桩的挠曲变形和桥台的倾斜变形,基于实测结果对基桩的受力变形性状进行研究。结果表明,桥台基桩在承受上部结构荷载以前就产生了压缩变形;在上部桥台和台后填土的共同作用下,桩身前后侧的轴向应变虽都表现为压应变,但应变值相差较大;台后路基填土完成后,桩身最大负弯矩出现在淤泥层浅部,最大正弯矩出现在软硬土层交界处,桥台发生较小倾斜;跨梁的修筑使桥台台身又恢复到竖直状态。
|
| 关 键 词： | 深厚淤泥地基 高路堤 桥台基桩 工作性状 现场实测 填土 |
| 收稿时间： | 2010-05-30 |
Field measurement and analysis of working properties of abutment pile in deep silt foundation |
| |
| YUE Jian,LENG Wu-ming,NIE Ru-song,YANG Qi.Field measurement and analysis of working properties of abutment pile in deep silt foundation[J].Rock and Soil Mechanics,2011,32(11):3333-3340. |
| |
| Authors: | YUE Jian LENG Wu-ming NIE Ru-song YANG Qi |
| |
| Institution: | School of Civil Engineering, Central South University, Changsha 410075, China |
| |
| Abstract: | The field measurement had been performed for one and a half years,which was aiming at the impact-cone concrete piles of the bridge abutments on the deep silt foundation.Before constructing the pile cap,during the period of building the abutment,constructing embankment near the transition section,constructing embankment of the transition section and after building the span beam,the abutment pile strain and the pore water pressure on pile side had been tested;and the pile deflection and the abutment inclinati... |
| |
| Keywords: | deep silt foundation high embankment abutment pile working properties field measurement earth fill |
| 本文献已被 CNKI 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 |
|
