|
|||||
|
|
| 黄土路基补强冲击的竖向位移分析计算 | |
| 引用本文： | 朱宏奎,沈晓敏,赵晋芳. 黄土路基补强冲击的竖向位移分析计算[J]. 铁道建筑技术, 2014, 0(12): 47-50 |
| 作者姓名： | 朱宏奎 沈晓敏 赵晋芳 |
| 作者单位： | 1. 中铁十九局集团第六工程有限公司 江苏无锡 214028 2. 内蒙古农业大学能源与交通工程学院 呼和浩特 010018 |
| 摘 要： | 以准池重载铁路ZCZQ-4标段高填方黄土路基为试验段,在分析冲击压路机冲击压实原理的基础上,将冲击波简化为三角形荷载,利用改进的Scott公式,将每一次轮瓣与地面的接触看作是一次强夯,进行竖向位移的计算并在现场埋设沉降观测仪,将理论计算与实际观测值对比。研究结果表明:将冲击压路机的冲击荷载简化为三角形荷载,通过加卸荷模型计算竖向位移,该方法得到的竖向位移与实测值相符,这种方法可以运用于实际。 |
| 关 键 词： | 黄土路基 冲击压路机 三角形荷载 竖向位移 |
Analysis and Calculation of Vertical Displacement of Reinforced Impact Loess Subgrade |
|
| Zhu Hongkui,Shen Xiaomin,Zhao Jinfang. Analysis and Calculation of Vertical Displacement of Reinforced Impact Loess Subgrade[J]. Railway Construction Technology, 2014, 0(12): 47-50 | |
| Authors: | Zhu Hongkui Shen Xiaomin Zhao Jinfang |
| Affiliation: | Zhu Hongkui, Shen Xiaomin, Zhao Jinfang (1. China Railway 19th Bureau Group Co. Ltd. , Wuxi 214028, China; 2. College of Energy and Transportation Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China) |
| Abstract: | Taking ZCZQ- 4 section loess high filled roadbed on Zhun-Chi Heavy Haul Railway as test section,the impact roller compaction principle is analyzed,and the shock wave is simplified as the triangle load. The modified Scott formula is used,with each wheel lobe contacted with the ground as a dynamic compaction,to make the vertical displacement calculations and with settlement observation instrument buried at the site,the theoretical calculation is compared with actual observations. Research results show that when the impact roller impact load is simplified as the triangle loading,the loading and unloading model vertical displacement calculated value is consistent with the actual value,so this method can be applied in practice. |
| Keywords: | loess roadbed impact roller triangle load vertical displacement |
| 本文献已被 CNKI 维普 等数据库收录！ | |