摘要
土凝岩是利用粉煤灰、煤矸石等工业废弃物研制出的一种材料,公路工程中应用较为广泛,水利工程应用于截渗墙和软弱地基置换等。本文通过变水头试验,探讨了土凝岩掺量和龄期(饱和累计时间)两个因素对稳定土渗透系数的影响规律并提出较为可行的掺量方案。试验结果表明:土凝岩掺量为15%的土,前期渗透系数下降较快,后期渗透系数可达到2.10E-8 cm/s,符合《水利工程施工规范》要求,较适合在截渗墙工程中推广应用。
Soil condensate rock is a martial with fly ash, coal gangue and other industrial wastes to be widely used in highway construction and waterconservancy applications such as cutoff wall and replacement of weak＇/bundation. This paper explored the effect law of different dosage and saturation cumulative time （age） on the stabilized soil＇s permeability coefficient through the variable head permeability test and put tbrward a feasible plan. The results showed that the permeability coefticient of stabilized soil with 15% soil condensate rock decreased rapidly in earlier stage and then it went up to 2.10 E-8 cm/s, which could satisfied with water conservancy engineering construction standard＇s requirements and was suitable for application to a cutoff wall.
出处
《山东农业大学学报（自然科学版）》
CSCD
2016年第2期292-295,共4页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
土凝岩
掺量
龄期
渗透系数
Soil condensate rock
dosage
age
permeability coefficient
