摘要
以瑞寻高速公路K1453+120段的红砂岩为研究对象,选取具有代表性的岩样进行室内崩解试验,分析各岩样在崩解过程中的颗粒级配变化情况,并分析其崩解的可能性。试验结果表明:岩样在浸水后1min内有崩解的现象,初崩时间较短;试样在经过烘干、浸水剧烈的干湿循环后出现快速崩解;在崩解过程中,崩解物颗粒大于5mm的颗粒含量逐渐减小,小于5mm的颗粒含量逐渐增加,但最终两者的颗粒含量趋于平衡。最后,对红砂岩的崩解机制进行了研究。
Taking red sandstone along RuiJin to XunWu expressway for example,slaking tests of representative red sandstone samples are conducted and the changes in grain content of rock samples in slaking process are analyzed.On this basis,the comparative analysis of slaking characteristics of those representative samples is made.The tests results indicate that the rock slaking phenomenon appear after immersion for one minute and the first slaking time is very short;rapid slaking will appear after the red sandstone samples are subjected to repeated drying and wetting cycles.In the process of slaking,the content of particles greater than 5 mm in slaking particles decrease gradually and the content of particles lesser than 5 mm increases.But in the end the particle concentration moves closer to equilibrium.At last,the slaking mechanism of red sandstone is studied.
出处
《交通科技》
2013年第4期101-104,共4页
Transportation Science & Technology
基金
江西省交通运输厅重点科研项目(2010C00065)资助
关键词
红砂岩
崩解
试验
red sandstone
slaking
experiment
