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| 含沙铁路道碴弹性模量和沉降量的试验研究 | |
| 引用本文： | 季顺迎,苏勇,严颖. 含沙铁路道碴弹性模量和沉降量的试验研究[J]. 铁道科学与工程学报, 2011, 0(2): 47-52 |
| 作者姓名： | 季顺迎 苏勇 严颖 |
| 作者单位： | 大连理工大学工业装备结构分析国家重点实验室;大连交通大学土木与安全工程学院; |
| 基金项目： | 国家重点基础研究发展规划项目(2010CB731502); 国家自然科学基金资助项目(50808027); 兰州大学西部灾害与环境力学教育部重点实验室开放基金资助项目(200708) |
| 摘 要： | 为研究有碴道床在不同含沙率下的力学行为,研制了准静态压缩试验装置,并通过循环加卸栽方式确定了不同含沙量下沙-石混合体的弹性模量和沉降量,分析了细沙时铁路道碴弹性模量和沉降量的影响.以上研究不仅对分析风沙区有碴道床的力学行为具有一定的应用价值,同时,对研究不同类型颗粒介质在不同配比下的力学行为转化规律也具有参考意义. |
| 关 键 词： | 道碴 含沙量 沙石混合体 弹性模量 沉降量 |
Experimental studies on elastic modulus and settlement of railway ballasts with sand |
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| JI Shun-ying,SU Yong,YAN Ying. Experimental studies on elastic modulus and settlement of railway ballasts with sand[J]. Journal of Railway Science and Engineering, 2011, 0(2): 47-52 | |
| Authors: | JI Shun-ying SU Yong YAN Ying |
| Affiliation: | JI Shun-ying1,SU Yong1,YAN Ying2(1.State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116023,China,2.Dalian Jiaotong University,School of Civil and Safety Engineering,Dalian 116028,China) |
| Abstract: | A quasi-static compression test was developed in order to investigate the mechanical behavior of ballasts with different sand contents.The elastic modulus and settlement were investigated under cyclic loading of sand-ballast mixtures and the influence of the sand was analyzed.These researches provide reference for the mechanical behavior transformation rule of different particles under different mixture ration. |
| Keywords: | ballasts sand content sand-ballast mixture elastic modulus settlement |
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