水泥改良黄土压缩性试验研究  

Experimental Study on the Compressibility of Compacted Cement-loess

作　　者：叶朝良[1] 何世鑫 向楠[1] 

机构地区：[1]石家庄铁道大学土木工程学院

出　　处：《河北交通职业技术学院学报》2014年第4期58-60,共3页Journal of Hebei Jiaotong Vocational and Technical College

基　　金：国家自然基金项目(编号50978172);铁道部科技研究开发计划项目(编号2010G018-B-4)

摘　　要：为了探索一定水泥掺量条件下压实度和养护龄期对水泥黄土压缩特性的影响规律,在室内进行了一维固结试验。数据分析表明：压实度越大,夯实水泥改良黄土的压缩系数越小;龄期达到7d以后,夯实水泥改良黄土在较低压实度下,压缩系数降低速度最快;龄期达到3d后,夯实改良黄土压缩性的衰减系数近似为-0.004。In order to explore influence regularity of degree of compaction and age on compressibility of compacted cement-loess under the condition of certain cement content,one-dimensional indoor compression test is conducted. Through the analysis of the data, the results show that the greater the degree of compaction,the smaller the compression coefficient of compacted cement-loess;compacted cement-loess coefficient reduces fastest in low degree of compaction after seven days later;attenuation coefficient of compacted cement-loess is approximation of-0.004 after three days later.

关 键 词：水泥黄土 压实度 养护龄期 压缩系数 压缩模量 

分 类 号：U214.11[交通运输工程—道路与铁道工程]