| 黄土区高速铁路挤密桩地基沉降控制效果研究 |
| |
| 引用本文： | 屈耀辉,武小鹏,米维军,魏永梁.黄土区高速铁路挤密桩地基沉降控制效果研究[J].铁道工程学报,2011(9). |
| |
| 作者姓名： | 屈耀辉 武小鹏 米维军 魏永梁 |
| |
| 作者单位： | 中铁西北科学研究院有限公司,兰州,730000 |
| |
| 基金项目： | 铁道部科技研究计划项目(2005K001-B-2-1) |
| |
| 摘 要： | 沉降控制是湿陷性黄土区高速铁路建设中的技术难题.本文以郑西客运专线湿陷性黄土路基试验工程为依托,通过开展沉降变形观测、大型浸水试验、路基沉降预测,对高速铁路技术条件下水泥土挤密桩地基的沉降变形特性、湿陷性消除效果、沉降控制效果等进行了研究.研究结论:挤密桩最大处理深度一般不超过15 m.本试验场地采用15 m挤密桩处理,恒载预压6个月路基的剩余沉降量便已满足铺设无砟轨道对路基工后沉降的控制要求,浸水后该地基加固层仅出现了极少量的沉降,加固层的黄土湿陷性已完全消除.在湿陷性黄土厚度小于15 m的场地,采用挤密桩处理地基是一种有效的沉降控制方法.
|
| 关 键 词： | 湿陷性黄土 高速铁路 挤密桩地基 沉降控制 |
Study on Control Effects of Settlement of Compact Pile Foundation of High Speed Railway in Collapsible Loess Region |
| |
| QU Yao-hui,WU Xiao-peng,MI Wei-jun,WEI Yong-liang.Study on Control Effects of Settlement of Compact Pile Foundation of High Speed Railway in Collapsible Loess Region[J].Journal of Railway Engineering Society,2011(9). |
| |
| Authors: | QU Yao-hui WU Xiao-peng MI Wei-jun WEI Yong-liang |
| |
| Affiliation: | QU Yao-hui,WU Xiao-peng,MI Wei-jun,WEI Yong-liang (Northwest Research Institute Co.Ltd of China Railway Engineering Corporation,Lanzhou,Gansu 730000,China) |
| |
| Abstract: | Research purposes: Settlement control is a key technical problem in construction of high-speed railway in collapsible loess region.Based on the tests to the subgrade of the passenger delicate line from Zhengzhou to Xi'an in collapsible loess region,the study was done on the settlement deformation characteristics,the collapsibility elimination effect and settlement control effect of the cement-soil compact pile foundation of the high-speed railway by conducting the observation of the settlement deformation,t... |
| |
| Keywords: | collapsible loess high-speed railway compaction pile foundation settlement control |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
