天津南港工业区改良盐渍土抗冻性能研究  

A Study of Frost Resistance of Improved Saline Soil for Tianjin Nangang Industrial Zone

作　　者：杜艳廷[1] 董进秋[1] 刘好[1] 刘淑艳[1] 王伟[1] 

机构地区：[1]天津市市政工程研究院,天津300074

出　　处：《中国市政工程》2015年第1期87-89,105-106,共3页China Municipal Engineering

摘　　要：针对天津南港工业区3个不同的地质分区,通过冻融循环试验研究不同掺量的石灰、水泥改良盐渍土的抗冻效果。试验结果表明,石灰、水泥均能较好改善盐渍土的抗冻性能。南港工业区3个不同地质分区盐渍土的改良效果均有差异。其中,陆域区和素土回填区盐渍土改良后的抗冻性能均高于海域吹填区。Aiming at three different geological areas of Tianjin Nangang Industrial Zone, the antifreeze effects of different dosage of lime,cement improved saline soil are studied by freeze-thaw cycle test. The results show that lime and cement can improve the frost resistance of saline soil. Improved saline soil effects of three different geological areas are different in Nangang Industrial Zone. Among those, the frost resistance performances of improved saline soil in land area and prime soil backfill area are higher than that in the sea reclamation area.

关 键 词：地质分区 盐渍土 改良 冻融循环 抗冻性能 

分 类 号：U416.166[交通运输工程—道路与铁道工程]