| 粉细砂土压缩特性试验研究 |
| |
| 引用本文： | 杜登峰,林寰宇,叶雄威,张树明.粉细砂土压缩特性试验研究[J].路基工程,2022,0(2):84-88. |
| |
| 作者姓名： | 杜登峰 林寰宇 叶雄威 张树明 |
| |
| 作者单位： | 1.西南交通大学土木工程学院，成都 610031 |
| |
| 基金项目： | 国家自然科学基金（51878577）；中国铁路总公司重大课题（2016G002-A） |
| |
| 摘 要： | 以嘎拉山隧道与嘎拉山大桥连接处的路基土为研究对象,采用WG型单杠杆固结仪开展固结试验,通过显著性分析比较各变量及各变量间交互作用对压缩指标的影响程度,研究不同粒径级配、压实度和含水率对粉细砂土压缩特性的影响.结果表明:在完全侧限条件下,细颗粒含量在15％左右时,重塑土的可压缩性最低;压实度增大,压缩性降低;含水率增大,...
|
| 关 键 词： | 粉细砂土 固结试验 压缩模量 显著性分析 交互作用 |
| 收稿时间： | 2021-03-30 |
Experimental Research on Compression Characteristics of Silt Sandy Soils |
| |
| Abstract: | Taking the subgrade soil of the junction of the Gongga Mountain Tunnel and the Gongga Mountain Bridge as the research object, the consolidation tests were carried out by using WG single-lever consolidation instrument. Through the comparative analysis of significance, the degree of influence of each variable and interaction between variables on compression index, the effects of different particle size gradation, compactness and moisture content on the compression characteristics of silt sandy soils were studied, The results show that under the full lateral limit condition, the compressibility of the remolded soil is the lowest when the fine particle content is about 15 %; Compressibility decreases with increasing compactness; With the increase of moisture content, the compression coefficient decreases gradually, but the speed is different. There are significant differences between the factors and their interactions on the compressibility modulus. |
| |
| Keywords: | |
|
| 点击此处可从《路基工程》浏览原始摘要信息 |
|
点击此处可从《路基工程》下载全文 |
|
