电力勘测设计Issue(2)：1-4,19,5.
粗颗粒盐渍土盐胀试验研究
Experimental Study on Salt Expansion of Coarse Particle Saline Soil
摘要
Abstract
The influencing factors upon salt-heaving properties of salty soil are a lot,but the primary are relate to the groundsill salinity、water、temperature、penetrability.The work of previous studies about salt heaving of coarse salty soil were indoors,it was dififcult to simulate the actual formation of the stratum,that resulted in different cognition about salt heaving.In view of indoor salt-heaving experiment、indoor-outdoor supplementary experiment、ifeld trial and comparative study with the speciifcation,the results show that:coarse salty soil,when the permeability coefifcient is less than 10-7,the formation is drying, Na2SO4 content of saline soil is 0.3%,it should carry salt-heaving evaluation. Meanwhile,experiment show that salt heaving under 200 kPa great pressure is still very obvious.关键词
粗颗粒盐渍土/现场试验/盐胀力/盐胀性Key words
coarse salty soil/ifeld trial/salt expansion force/salt-heaving evaluate分类
建筑与水利引用本文复制引用
程东幸,张博,严福章,樊柱军,吴长英..粗颗粒盐渍土盐胀试验研究[J].电力勘测设计,2015,(2):1-4,19,5.基金项目
国家电网公司科技部计划项目(HQ-2013-S-EX-018)，冻土工程国家重点实验室开放基金(SKLFSE201215)资助 （HQ-2013-S-EX-018）
