天津中心渔港吹填土的易溶盐试验研究  

Experimental study on soluble salt of dredger fill in Central Fishing Harbor of Tianjin

作　　者：范强[1] 王清[1] 韩旭东[1] 闫欢[1] 孙明乾[1] 宋盛渊[1] 

机构地区：[1]吉林大学建设工程学院,长春130026

出　　处：《世界地质》2013年第3期598-605,共8页World Geology

基　　金：国家自然科学基金资助项目(40372122;41172236);国家自然科学基金国际合作项目(40911120044)联合资助

摘　　要：以天津市中心渔港区经过真空预压排水处理和未经排水处理的土样为例,对该区土壤排水条件和易溶盐成分及其分布规律做了详细的研究分析,并就其对土的I P值、pH值和工程性质的影响进行了探讨。研究发现,其未排水处理较排水处理后的土样易溶盐含量高,且两种土样中钠盐和氯盐含量几乎各占易溶盐总量的一半,其他易溶盐类含量很少;随取样深度的加深,易溶盐总量、钠盐含量和氯盐含量三者的变化规律非常相似。此外,对于同一种黏性土,不同的易溶盐含量所对应的塑性指数是不同的,未排水处理的与排水处理的各类土样中I P平均值基本一致,排水、不排水条件对塑性指数的变化影响并不显著。Taking the soil of Central Fishing Harbor of Tianjin undrained and drained by vacuity as an exam- ple, we made detail analysis on draining condition of soil, element and distribution of soluble salt in this Harbor area and scratched its influence on Ip, pH and engineering property of soil. The authors found out that the soluble salt content of the undrained was higher than of the drained, and the contents of Na ＋ and C1- in both nearly take up 50% respectly. The content of other soluble salt was very low, and along with the deepening of sampling, the content variety regulation was nearly the same among Na ~ , C1- and the total contents of soluble salt. To the same kind of cohesive soil, 1p is different for various contents of soluble salt in the soil. The relationship between Ip and soluble salt contents were nearly the same for the drained and the undrained, but the variety range of Ip in the undr- ained was much larger.

关 键 词：真空预压 吹填土 易溶盐分析 天津 

分 类 号：P641.75[天文地球—地质矿产勘探] P641.12[天文地球—地质学]