高地下水位地区花岗岩残积土路堤填料改良试验研究  

Experimental Study on Improvement of Granite Residual Soil as Embankment Filler in High Groundwater Level Area

作　　者：向铭培 王志斌[1] XIANG Ming-pei;WANG Zhi-bin(School of Civil Engineering,Hunan University of Science and Technology,Xiangtan,Hunan,411201,China)

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《建材技术与应用》2023年第4期30-33,共4页Research and Application of Building Materials

摘　　要：以广西南宁-湛江高速公路南宁至博白那卜段工程为依托,考虑到高地下水位地区花岗岩残积土绝大部分须进行改良才能作为路堤填料,通过水泥、石灰、水泥与石灰复掺改良对比试验,分析浸水时间对改良花岗岩残积土路堤填料工程特性的影响,结合试验结果建议:采用4%水泥与3%石灰复掺改良花岗岩残积土的方案。Based on the project of Nanning to Bobainabu section of Nanning-Zhanjiang Expressway in Guangxi,considering that most of the granite residual soil in high groundwater level areas must be improved to be used as embankment fillers,the effect of water immersion time on the engineering characteristics of the improved granite residual soil embankment fillers is analyzed through the cement,lime,cement and lime mixed improvement contrast tests.Combined with the test results,the following suggestions are suggested:The scheme of improving granite residual soil with 4%cement and 3%lime is adopted.

关 键 词：花岗岩残积土 路堤填料 混合改良 浸水试验 

分 类 号：TU457[建筑科学—岩土工程]