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| 干湿循环条件下完全扰动黄土路基回弹模量分析 | |
| 引用本文： | 李聪,邓卫东,崔相奎.干湿循环条件下完全扰动黄土路基回弹模量分析[J].长沙交通学院学报,2009,25(2):8-12. |
| 作者姓名： | 李聪 邓卫东 崔相奎 |
| 作者单位： | 1. 同济大学,道路与交通工程教育部重点实验室,上海,200092 2. 重庆交通科研设计院,道路工程所,重庆,400067 3. 辽宁省高等级公路建设局项目指挥部,辽宁,沈阳,110003 |
| 基金项目： | 国家西部交通建设科技项目 |
| 摘 要： | 在分析路基回弹模量随季节交替之变化规律的基础上,通过模拟试验,研究了干湿循环对室内试验所得回弹模量值(简称回弹模量)的影响.干湿循环对回弹模量有直接影响,即便对于同一种土(试验用完全扰动黄土),在相同压实度与含水率情况下,由于干湿循环阶段不同,回弹模量也呈现出一定差异,这种差异主要体现在低含水率时,可以采用干湿循环湿度影响指数CW来表征干湿循环对回弹模量的影响;在已有回弹模量预估模型(基质吸力模型)中引入了干湿循环影响系数αi,进一步完善了该模型. |
| 关 键 词： | 完全扰动黄土 回弹模量 干湿循环 (干湿循环)湿度影响指数 预估模型 |
The study on resilient modulus of remolded loess in moisture circulation process |
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| LI Cong,DENG Wei-dong,CUI Xiang-kui.The study on resilient modulus of remolded loess in moisture circulation process[J].Journal of Changsha Communications University,2009,25(2):8-12. | |
| Authors: | LI Cong DENG Wei-dong CUI Xiang-kui |
| Institution: | 1.Key Laboratory of Road and Traffic Engineering of Ministry of Education;Tongji University;Shanghai 200092;China;2.Department of Road Engineering;Chongqing Communications Researchand Design Institute;Chongqing 400067;3.Headquarters of Highway Project;ConstructionBureau of High-grade Highways of Liaoning Province;Shenyang 110003;China |
| Abstract: | Firstly,this paper has showed the variation law of resilient modulus with seasonal transformation.Afterwards,authors have studied the impact of moisture circulation process on the value of resilient modulus of subgrade filled with remolded loess through indoor simulation test.Moisture circulation process has remarkable influence on resilient modulus even if at the same state of density and moisture,especially in low moisture.Moreover,the index of moisture effect could be introduced to characterize effect di... |
| Keywords: | remolded loess resilient modulus moisture circulation process index of moisture effect forecasting model |
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