高性能固化剂稳定粉质土路基的效果分析  

Analysis of stable effect of silty subgrade by solidifying agent with high performance

作　　者：朱志铎[1] 郝建新[1] 赵黎明[1] 

机构地区：[1]东南大学交通学院,江苏南京210096

出　　处：《合肥工业大学学报（自然科学版）》2009年第10期1599-1601,1611,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(40872173)

摘　　要：文章基于路基的力学及路用性能,进行高性能固化剂和其他材料稳定粉质土路基的室内及现场试验的对比研究,以确定稳定粉质土路基的合理方案及固化剂掺量。室内试验结果表明,掺加高性能固化剂可明显增加粉质土的无侧限抗压强度和水稳性,减小其收缩变形;现场试验结果表明,掺加4%高性能固化剂的粉质土路基早期强度较高、变形较小、整体刚度好,能满足路基的各项技术指标要求。From the viewpoints of mechanics of subgrade and road usability, the tests and comparisons are made in order to study the stabilization of silty subgrade by the solidifying agent with high performance and other solidifying agents, and the reasonable plan and the best addition percentage of the agent are determined both in the lab and on the site. Laboratory test results show that the unconfined compressive strength and the water stability of silty soils are obviously increased and the shrinkage strain of silty soils is decreased by adding the solidifying agent with high performance. Field test results show that the silty subgrade stabilized by adding four percent of the solidifying agent with high performance has high strength in the early period, small deformation and high integral rigidity, which are in accordance with all the technical requirements of subgrade.

关 键 词：高性能固化剂 粉质土 路基 试验 

分 类 号：TU411.01[建筑科学—岩土工程]